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Komatsu D65EX-17, D65PX-17, D65WX-17 Crawler Bulldozer Shop Manual SEN05536-02 – PDF DOWNLOAD
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Komatsu D65EX-17, D65PX-17, D65WX-17 Crawler Bulldozer Shop Manual
SERIAL NUMBERS:
D65EX- 1001 and up
D65PX- 1001 and up
D65WX-1001 and up
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Description
Komatsu D65EX-17, D65PX-17, D65WX-17 Crawler Bulldozer Shop Manual
FILE DETAILS:
Komatsu D65EX-17, D65PX-17, D65WX-17 Crawler Bulldozer Shop Manual
Brands: Komatsu
Equipment Type: Crawler Bulldozer
Manuals Type: Shop Manual
Machine Model: D65EX-17, D65PX-17, D65WX-17
Serial Number: 1001 and up
Book Code: SEN05536-02
Language: English
Pages: 1901
File Format: Portable Document Format (PDF)
DESCRIPTION:
Komatsu D65EX-17, D65PX-17, D65WX-17 Crawler Bulldozer Shop Manual
How to read the shop manual:
Composition of shop manual:
• This shop manual describes the technical information required for the services performed in a workshop. The shop manual is divided into the following chapters for the convenience of use.
00. Index and foreword
• This section includes the index, foreword, safety and basic information.
01. Specification
• This section explains the specifications of the machine.
10. Structure and function
• This section explains the structure and function of the machine. The section of “Structure and function” serves not only to give an understanding for the structure of each component, but also serves as reference material for troubleshooting.
20. Standard value table
• The standard values for a new machine and trouble shooting are indicated. This standard value table is used for testing and adjusting, and determining a failure at troubleshooting.
30. Testing and adjusting
• This section describes the measuring tools and how to measure, and how to adjust various parts. As for the standard value and failure criterion, see the standard value table.
40. Troubleshooting
• This section describes the troubleshooting in a suspected area when a failure occurs and the remedy for the failure. Troubleshooting is described by each failure mode.
50. Disassembly and assembly
• This section explains the procedures for removing, installing, disassembling, and assembling each part or component and the special tools for the works as well as precautions for doing them safely. In addition, tightening torque, and quantity and weight of coating material, oil, grease, and coolant required for the works are also explained.
60. Maintenance standard
• This section describes the maintenance standard values for each component. This section gives the criterion values for each component and required remedy at disassembly or maintenance.
80. Appendix
• The structure and function, testing and adjusting, and troubleshooting for all of the other components or equipment which can not be separately classified are explained together in the appendix.
90. Diagrams and drawings
• This section gives hydraulic circuit diagrams and electrical circuit diagrams.
TABLE OF CONTENTS:
Komatsu D65EX-17, D65PX-17, D65WX-17 Crawler Bulldozer Shop Manual
COVER...................................................................................................................... 1 00 Index and foreword ..................................................................................................... 3 Index ................................................................................................................. 4 Foreword, safety and general information .............................................................................. 17 Important safety notice ........................................................................................... 17 How to read the shop manual ....................................................................................... 22 Explanation of terms for maintenance standard ..................................................................... 24 Handling equipment of fuel system devices ......................................................................... 26 Handling of intake system parts ................................................................................... 27 Handling of hydraulic equipment ................................................................................... 28 Method of disconnecting and connecting of push-pull type coupler .................................................. 30 Handling of electrical equipment .................................................................................. 33 How to read electric wire code .................................................................................... 41 Precautions when performing operation ............................................................................. 44 Standard tightening torque table .................................................................................. 49 List of abbreviation .............................................................................................. 55 Conversion table .................................................................................................. 60 01 Specification .......................................................................................................... 65 Table of contents ..................................................................................................... 66 Specifications ........................................................................................................ 67 Specification drawing ............................................................................................. 67 Specifications .................................................................................................... 70 Weight table ...................................................................................................... 94 Table of fuel, coolant and lubricants ............................................................................. 102 10 Structure and function ................................................................................................. 103 Table of contents ..................................................................................................... 104 Engine and cooling system ............................................................................................. 106 Engine related parts .............................................................................................. 106 Damper ............................................................................................................ 108 Cooling system .................................................................................................... 110 Cooling fan pump .................................................................................................. 112 Cooling fan motor ................................................................................................. 126 Power train ........................................................................................................... 134 Power train ....................................................................................................... 134 HSS system ........................................................................................................ 137 Overall drawing of power train unit ............................................................................... 139 Power train mount ................................................................................................. 141 Power train hydraulic piping drawing .............................................................................. 142 Transmission, steering, and brake control ......................................................................... 144 Universal joint ................................................................................................... 146 Torque converter and PTO .......................................................................................... 147 Transmission ...................................................................................................... 153 Transmission control valve ........................................................................................ 166 Forward and reverse clutch ECMV and gear shift clutch ECMV ........................................................ 168 Lockup clutch ECMV ................................................................................................ 175 Main relief valve and torque converter relief valve ............................................................... 179 Transmission lubricating oil relief valve ......................................................................... 182 Bevel gear shaft, HSS, and brake .................................................................................. 183 Brake valve ....................................................................................................... 204 Final drive ....................................................................................................... 208 Undercarriage and frame ............................................................................................... 212 Main frame ........................................................................................................ 212 Suspension ........................................................................................................ 214 Track frame and idler cushion ..................................................................................... 216 Hydraulic system ...................................................................................................... 218 Hydraulic component layout ........................................................................................ 218 Work equipment control ............................................................................................ 222 Hydraulic tank .................................................................................................... 224 CLSS .............................................................................................................. 226 Scavenging pump ................................................................................................... 230 Steering lubricating oil pump and power train pump ................................................................ 231 HSS pump .......................................................................................................... 232 HSS motor ......................................................................................................... 252 Control valve ..................................................................................................... 261 Blade PPC valve ................................................................................................... 288 Ripper PPC valve .................................................................................................. 296 Quick drop valve .................................................................................................. 301 Work equipment lock solenoid valve ................................................................................ 304 Pitch selector solenoid valve ..................................................................................... 309 Angle control EPC valve ........................................................................................... 310 Hydraulic oil cooler bypass valve ................................................................................. 315 PPC accumulator ................................................................................................... 316 Work equipment ........................................................................................................ 317 Work equipment .................................................................................................... 317 Ripper ............................................................................................................ 320 Piston valve ...................................................................................................... 321 Cab and its attachments ............................................................................................... 323 ROPS cab .......................................................................................................... 323 Cab mount ......................................................................................................... 325 Electrical system ..................................................................................................... 326 Engine control system ............................................................................................. 326 Cooling system control system ..................................................................................... 329 Palm command control system ....................................................................................... 331 Machine monitor system ............................................................................................ 335 KOMTRAX system .................................................................................................... 355 System component parts ............................................................................................ 358 Sensor ............................................................................................................ 373 20 Standard value table ................................................................................................... 389 Table of contents ..................................................................................................... 390 Standard service value table .......................................................................................... 391 Standard value table for engine ................................................................................... 391 Standard value table for machine .................................................................................. 393 30 Testing and adjusting .................................................................................................. 417 Table of contents ..................................................................................................... 418 Related information on testing and adjusting .......................................................................... 420 Tools for testing, adjusting, and troubleshooting ................................................................. 420 Engine and cooling system ............................................................................................. 425 Testing engine speed .............................................................................................. 425 Measuring boost pressure .......................................................................................... 427 Measuring exhaust gas temperature ................................................................................. 428 Measuring exhaust gas color ....................................................................................... 430 Measuring and adjusting valve clearance ........................................................................... 432 Measuring compression pressure .................................................................................... 434 Measuring blowby pressure ......................................................................................... 436 Measuring engine oil pressure ..................................................................................... 438 Measuring EGR valve and KVGT oil pressure ......................................................................... 439 Releasing remaining pressure from fuel system ..................................................................... 440 Measuring fuel pressure ........................................................................................... 441 Measuring fuel delivery, return rate and leakage .................................................................. 448 Handling cylinder cutout mode operation ........................................................................... 452 Handling no-injection cranking operation .......................................................................... 453 Bleeding air from fuel system ..................................................................................... 454 Testing fuel circuit for leakage .................................................................................. 455 Testing and adjusting air conditioner compressor belt tension ..................................................... 456 Replacing alternator belt ......................................................................................... 457 Adjusting fuel dial and decelerator pedal ......................................................................... 458 Power train ........................................................................................................... 460 Measuring power train oil pressure ................................................................................ 460 Adjusting transmission output shaft speed sensor (replacement procedure) .......................................... 465 Simple test procedure for brake performance ....................................................................... 466 Adjusting brake pedal ............................................................................................. 467 Adjusting parking brake lever ..................................................................................... 469 Retrieval of disabled machine using brake release device .......................................................... 471 Undercarriage and frame ............................................................................................... 474 Adjusting idler clearance ......................................................................................... 474 Checking sprocket wear ............................................................................................ 475 Testing and adjusting track tension ............................................................................... 476 Hydraulic system ...................................................................................................... 477 Releasing remaining pressure in work equipment cylinder ........................................................... 477 Measuring and adjusting work equipment and HSS oil pressure ....................................................... 478 Measuring source pressure of control circuit ...................................................................... 481 Measuring PPC valve output pressure ............................................................................... 482 Adjusting play of work equipment PPC valve ........................................................................ 485 Isolating the parts causing hydraulic drift in blade and ripper ................................................... 487 Measure internal oil leakage of work equipment cylinder ........................................................... 488 Checking fan speed ................................................................................................ 489 Measuring fan circuit oil pressure ................................................................................ 490 Bleeding air from hydraulic circuit ............................................................................... 491 Work equipment ........................................................................................................ 493 Adjusting work equipment lock lever ............................................................................... 493 Adjustment of straight tilt dozer ................................................................................. 494 Cab and its attachments ............................................................................................... 496 Adjusting operator's cab .......................................................................................... 496 Adjusting play of blade center ball ............................................................................... 499 Electrical system ..................................................................................................... 500 Special functions of machine monitor .............................................................................. 500 Handling voltage circuit of engine controller ..................................................................... 563 Adjustment method when controller has been replaced ............................................................... 564 Testing diodes .................................................................................................... 566 Pm clinic ............................................................................................................. 567 Pm Clinic service ................................................................................................. 567 Pm Clinic check sheet ............................................................................................. 573 40 Troubleshooting ........................................................................................................ 583 Table of contents ..................................................................................................... 584 Related information on troubleshooting ................................................................................ 591 Troubleshooting points ............................................................................................ 591 Sequence of events in troubleshooting ............................................................................. 593 Check before troubleshooting ...................................................................................... 595 Inspection procedure before troubleshooting ....................................................................... 597 Preparation for troubleshooting of electrical system .............................................................. 617 Classification and procedures for troubleshooting ................................................................. 621 Classification and procedures for troubleshooting numbers ......................................................... 623 Information in troubleshooting table .............................................................................. 626 Troubleshooting method for open circuit in wiring harness of pressure sensor system ............................... 628 Connector list and layout ......................................................................................... 630 Connector contact identification .................................................................................. 643 T-branch box and T-branch adapter table ........................................................................... 681 Fuse locations table .............................................................................................. 686 Precautions for KDPF (KCSF and KDOC) Cleaning and Replacement ..................................................... 689 Preparation of dummy temperature sensor (for KDOC and KDPF temperature sensors) ................................... 692 Preparation of short circuit electrical connector (for failure codes [CA1883] and [CA3135]) ....................... 693 Failure codes table ............................................................................................... 694 Troubleshooting by failure code (Display of code) ..................................................................... 705 Failure code [1500L0] Transmission clutch:Abnormal ................................................................ 705 Failure code [15SAL1] Forward clutch:Fill High .................................................................... 706 Failure code [15SALH] Forward clutch:Fill Low ..................................................................... 708 Failure code [15SBL1] Reverse clutch:Fill High .................................................................... 710 Failure code [15SBLH] Reverse clutch:Fill Low ..................................................................... 712 Failure code [15SEL1] Speed 1st clutch:Fill High .................................................................. 714 Failure code [15SELH] Speed 1st clutch:Fill Low ................................................................... 716 Failure code [15SFL1] Speed 2nd clutch:Fill High .................................................................. 718 Failure code [15SFLH] Speed 2nd clutch:Fill Low ................................................................... 720 Failure code [15SGL1] Speed 3rd clutch:Fill High .................................................................. 722 Failure code [15SGLH] Speed 3rd clutch:Fill Low ................................................................... 724 Failure code [15SJL1] L/U :Fill Hihg .............................................................................. 726 Failure code [15SJLH] L/U :Fill low ............................................................................... 728 Failure code [1800MW] P/L clutch:Slip ............................................................................. 730 Failure code [879AKA] A/C Inner Sensor Open Circuit ............................................................... 731 Failure code [879AKB] A/C Inner Sensor Short Circuit .............................................................. 732 Failure code [879BKA] A/C Outer Sensor Open Circuit ............................................................... 733 Failure code [879BKB] A/C Outer Sensor Short Circuit .............................................................. 734 Failure code [879CKA] Ventilating Sensor Open Circuit ............................................................. 735 Failure code [879CKB] Ventilating Sensor Short Circuit ............................................................ 736 Failure code [879DKZ] Sunlight Sensor Open Or Short Circuit ....................................................... 737 Failure code [879EMC] Ventilation Damper Abnormality .............................................................. 738 Failure code [879FMC] Air Mix Damper Abnormality .................................................................. 739 Failure code [879GKX] Refrigerant Abnormality ..................................................................... 740 Failure code [989L00] Engine Controller Lock Caution 1 ............................................................ 741 Failure code [989M00] Engine Controller Lock Caution 2 ............................................................ 742 Failure code [989N00] Engine Controller Lock Caution 3 ............................................................ 743 Failure code [A1U0N3] HC Desorb Request 1 ......................................................................... 744 Failure code [A1U0N4] HC Desorb Request 2 ......................................................................... 746 Failure code [AA10NX] Air Cleaner Clogging ........................................................................ 748 Failure code [AB00KE] Charge Voltage Low .......................................................................... 749 Failure code [B@BAZG] Eng Oil Press Low ........................................................................... 751 Failure code [B@BCNS] Eng Water Overheat .......................................................................... 752 Failure code [B@CENS] P/L Oil Overheat ............................................................................ 753 Failure code [B@HANS] Hyd Oil Overheat ............................................................................ 754 Failure code [CA115] Eng Ne and Bkup Speed Sens Error ............................................................. 755 Failure code [CA122] Chg Air Press Sensor High Error .............................................................. 756 Failure code [CA123] Chg Air Press Sensor Low Error ............................................................... 758 Failure code [CA131] Throttle Sensor High Error ................................................................... 760 Failure code [CA132] Throttle Sensor Low Error .................................................................... 762 Failure code [CA144] Coolant Temp Sens High Error ................................................................. 764 Failure code [CA145] Coolant Temp Sens Low Error .................................................................. 766 Failure code [CA153] Chg Air Temp Sensor High Error ............................................................... 768 Failure code [CA154] Chg Air Temp Sensor Low Error ................................................................ 770 Failure code [CA187] Sensor 2 Supply Volt Low Error ............................................................... 772 Failure code [CA234] Eng Overspeed ................................................................................ 774 Failure code [CA221] Ambient Press Sensor High Error .............................................................. 775 Failure code [CA222] Ambient Press Sensor Low Error ............................................................... 777 Failure code [CA227] Sensor 2 Supply Volt High Error .............................................................. 779 Failure code [CA238] Ne Speed Sensor Supply Volt Error ............................................................ 780 Failure code [CA239] Ne Speed Sens Supply Volt High Error ......................................................... 781 Failure code [CA271] IMV/PCV1 Short Error ......................................................................... 782 Failure code [CA272] IMV/PCV1 Open Error .......................................................................... 784 Failure code [CA281] Pump Press Balance Error ..................................................................... 786 Failure code [CA295] Ambient Pressure Sensor In Range Error ....................................................... 787 Failure code [CA322] Inj #1(L#1) Open/Short Error ................................................................. 788 Failure code [CA323] Inj #5(L#5) Open/Short Error ................................................................. 790 Failure code [CA324] Inj #3(L#3) Open/Short Error ................................................................. 792 Failure code [CA325] Inj #6(L#6) Open/Short Error ................................................................. 794 Failure code [CA331] Inj #2(L#2) Open/Short Error ................................................................. 796 Failure code [CA332] Inj #4(L#4) Open/Short Error ................................................................. 798 Failure code [CA343] ECM Critical Internal Failure ................................................................ 800 Failure code [CA351] Injectors Drive Circuit Error ................................................................ 801 Failure code [CA352] Sensor 1 Supply Volt Low Error ............................................................... 802 Failure code [CA356] Mass Air Flow Sensor High Error .............................................................. 804 Failure code [CA357] Mass Air Flow Sensor Low Error ............................................................... 806 Failure code [CA386] Sensor 1 Supply Volt High Error .............................................................. 808 Failure code [CA428] Water in Fuel Sensor High Error .............................................................. 809 Failure code [CA429] Water in Fuel Sensor Low Error ............................................................... 811 Failure code [CA435] Eng Oil Press Sw Error ....................................................................... 813 Failure code [CA441] Battery Voltage Low Error .................................................................... 814 Failure code [CA442] Battery Voltage High Error ................................................................... 816 Failure code [CA449] Rail Press Very High Error ................................................................... 817 Failure code [CA451] Rail Press Sensor High Error ................................................................. 819 Failure code [CA452] Rail Press Sensor Low Error .................................................................. 821 Failure code [CA488] Chg Air Temp High Torque Derate .............................................................. 823 Failure code [CA515] Rail Press Sens Sup Volt High Error .......................................................... 824 Failure code [CA516] Rail Press Sens Sup Volt Low Error ........................................................... 826 Failure code [CA553] Rail Press High Error ........................................................................ 828 Failure code [CA555] Crankcase Press High Error 2 ................................................................. 829 Failure code [CA556] Crankcase Press High Error 2 ................................................................. 830 Failure code [CA559] Rail Pump Press Low Error .................................................................... 831 Failure code [CA595] Turbo Speed High Error 2 ..................................................................... 835 Failure code [CA687] Turbo Speed Low Error ........................................................................ 836 Failure code [CA689] Eng Ne Speed Sensor Error .................................................................... 838 Failure code [CA691] Intake Air Temp Sens High Error .............................................................. 842 Failure code [CA692] Intake Air Temp Sens Low Error ............................................................... 844 Failure code [CA697] ECM Internal Temp Sensor High Error .......................................................... 846 Failure code [CA698] ECM Int Temp Sensor Low Error ................................................................ 847 Failure code [CA731] Eng Bkup Speed Sens Phase Error .............................................................. 848 Failure code [CA778] Eng Bkup Speed Sensor Error .................................................................. 850 Failure code [CA1117] Persistent Data Lost Error .................................................................. 855 Failure code [CA1664] KDOC Malfunction ............................................................................ 856 Failure code [CA1691] Regeneration Ineffective .................................................................... 860 Failure code [CA1695] Sensor 5 Supply Volt High Error ............................................................. 863 Failure code [CA1696] Sensor 5 Supply Volt Low Error .............................................................. 864 Failure code [CA1843] Crankcase Press Sens High Error ............................................................. 866 Failure code [CA1844] Crankcase Press Sens Low Error .............................................................. 868 Failure code [CA1879] KDPF Delta P Sensor High Error .............................................................. 870 Failure code [CA1881] KDPF Delta P Sensor Low Error ............................................................... 872 Failure code [CA1883] KDPF Delta P Sens In Range Error ............................................................ 874 Failure code [CA1921] KDPF Soot Load High Error 1 ................................................................. 878 Failure code [CA1922] KDPF Soot Load High Error 2 ................................................................. 881 Failure code [CA1942] Crankcase Press Sens In Range Error ......................................................... 886 Failure code [CA1993] KDPF Delta Pressure Low Error ............................................................... 887 Failure code [CA2185] Throt Sensor Sup Volt High Error ............................................................ 891 Failure code [CA2186] Throt Sensor Sup Volt Low Error ............................................................. 893 Failure code [CA2249] Rail Press Very Low Error ................................................................... 895 Failure code [CA2265] Fuel Feed Pump Open Error ................................................................... 896 Failure code [CA2266] Fuel Feed Pump Short Error .................................................................. 898 Failure code [CA2271] EGR Valve Pos Sens High Error ............................................................... 900 Failure code [CA2272] EGR Valve Pos Sens Low Error ................................................................ 902 Failure code [CA2288] Turbo Speed High Error 1 .................................................................... 905 Failure code [CA2311] IMV Solenoid Error .......................................................................... 906 Failure code [CA2349] EGR Valve Solenoid Open Error ............................................................... 907 Failure code [CA2353] EGR Valve Solenoid Short Error .............................................................. 909 Failure code [CA2357] EGR Valve Servo Error ....................................................................... 911 Failure code [CA2373] Exhaust Manifold Press Sens High error ...................................................... 912 Failure code [CA2374] Exhaust Manifold Press Sens Low error ....................................................... 914 Failure code [CA2375] EGR Orifice Temp Sens High Error ............................................................ 916 Failure code [CA2376] EGR Orifice Temp Sens Low Error ............................................................. 918 Failure code [CA2381] KVGT Pos Sens High Error .................................................................... 920 Failure code [CA2382] KVGT Pos Sens Low Error ..................................................................... 922 Failure code [CA2383] KVGT Solenoid Open Error .................................................................... 925 Failure code [CA2386] KVGT Solenoid Short Error ................................................................... 927 Failure code [CA2387] KVGT Servo Error ............................................................................ 929 Failure code [CA2554] Exh Manifold Press Sens In Range Error ...................................................... 930 Failure code [CA2555] Grid Htr Relay Volt Low Error ............................................................... 931 Failure code [CA2556] Grid Htr Relay Volt High Error .............................................................. 933 Failure code [CA2637] KDOC Blocked ................................................................................ 935 Failure code [CA2639] Manual Stationary Regeneration Request ...................................................... 937 Failure code [CA2961] EGR Orifice Temp High Error 1 ............................................................... 940 Failure code [CA2973] Chg Air Press Sensor In Range Error ......................................................... 941 Failure code [CA3133] KDPF Outlet Press Sens High Error ........................................................... 942 Failure code [CA3134] KDPF Outlet Press Sens Low Error ............................................................ 944 Failure code [CA3135] KDPF Outlet Press Sens In Range Error ....................................................... 946 Failure code [CA3251] KDOC Inlet Temp High Error .................................................................. 950 Failure code [CA3253] KDOC Temp Error - Non Regeneration .......................................................... 953 Failure code [CA3254] KDOC Outlet Temp High Error 1 ............................................................... 956 Failure code [CA3255] KDPF Temp Error - Non Regeneration .......................................................... 959 Failure code [CA3256] KDPF Outlet Temp High Error 1 ............................................................... 962 Failure code [CA3311] KDOC Outlet Temp High Error 2 ............................................................... 965 Failure code [CA3312] KDPF Outlet Temp High Error 2 ............................................................... 968 Failure code [CA3313] KDOC Inlet Temp Sensor Low Error ............................................................ 971 Failure code [CA3314] KDOC Inlet Temp Sens High Error ............................................................. 974 Failure code [CA3315] KDOC Inlet Temp Sens In Range Error ......................................................... 978 Failure code [CA3316] KDOC Outlet Temp Sens Low Error ............................................................. 982 Failure code [CA3317] KDOC Outlet Temp Sens High Error ............................................................ 985 Failure code [CA3318] KDOC Outlet Temp Sens In Range Error ........................................................ 988 Failure code [CA3319] KDPF Outlet Temp Sens High Error ............................................................ 992 Failure code [CA3321] KDPF Outlet Temp Sens Low Error ............................................................. 996 Failure code [CA3322] KDPF Outlet Temp Sens In Range Error ........................................................ 999 Failure code [CA3419] Mass Air Flow Sensor Sup Volt High Error ....................................................1003 Failure code [CA3421] Mass Air Flow Sensor Sup Volt Low Error .....................................................1005 Failure code [CA3741] Rail Press Valve Trip Error .................................................................1007 Failure code [D130KA] Neutral relay: Open .........................................................................1008 Failure code [D130KB] Neutral relay: Short circuit ................................................................1010 Failure code [D19DKA] Amber light relay:Open ......................................................................1012 Failure code [D19DKB] Amber light relay:Short circuit .............................................................1014 Failure code [D19JKZ] Personal Code Relay Abnormality .............................................................1016 Failure code [D811MC] KOMTRAX Error ...............................................................................1019 Failure code [D862KA] GPS Antenna Open Circuit ....................................................................1020 Failure code [D8ALKA] Operating Lamp Open Circuit(KOMTRAX) ........................................................1021 Failure code [D8ALKB] Operating Lamp Short Circuit(KOMTRAX) .......................................................1023 Failure code [D8AQKR] CAN2 Discon(KOMTRAX) ........................................................................1024 Failure code [DAF0MB] Monitor ROM Abnormality .....................................................................1025 Failure code [DAF0MC] Monitor Error ...............................................................................1026 Failure code [DAF8KB] Camera Power Supply Short Circuit ...........................................................1027 Failure code [DAF9KQ] Model Selection Abnormality .................................................................1029 Failure code [DAFGMC] GPS Module Error ............................................................................1030 Failure code [DAFLKA] Operating Lamp Open Circuit(Monitor) ........................................................1031 Failure code [DAFLKB] Operating Lamp Short Circuit(Monitor) .......................................................1033 Failure code [DAFQKR] CAN2 Discon .................................................................................1034 Failure code [DAZ9KQ] A/C Model Selection Abnormality .............................................................1035 Failure code [DAZQKR] CAN2 Discon (Aircon ECU) ....................................................................1036 Failure code [DB2QKR] CAN2 Discon (Engine Con) ....................................................................1040 Failure code [DB2RKR] CAN1 Discon (Engine Con) ....................................................................1045 Failure code [DBE0KT] PT controller: Abnormality in controller ....................................................1050 Failure code [DBE1KK] PT controller: Source voltage low ...........................................................1051 Failure code [DBE2KK] PT controller: Output voltage low ...........................................................1053 Failure code [DBE5KK] PT:Sensor volt 5V (0) Out of normal range ...................................................1055 Failure code [DBE6KK] PT:Sensor volt 24V Out of normal range ......................................................1057 Failure code [DBE7KK] PT:Sensor volt 5V (1) Out of normal range ...................................................1059 Failure code [DBE9KQ] PT controller:Type select signal ............................................................1061 Failure code [DBELKA] Operating Lamp Open Circuit(PT Con) .........................................................1062 Failure code [DBELKB] Operating Lamp Short Circuit(PT Con) ........................................................1064 Failure code [DBEQKR] CAN2 Discon (PT Con) ........................................................................1065 Failure code [DBERKR] CAN1 Discon (PT Con) ........................................................................1066 Failure code [DD12KA] Shift up Sw:Open ............................................................................1067 Failure code [DD12KB] Shift up Sw:Short circuit ...................................................................1069 Failure code [DD13KA] Shift down Sw:Open ..........................................................................1071 Failure code [DD13KB] Shift down Sw:Short circuit .................................................................1073 Failure code [DD14KA] Parking lever Sw: Open ......................................................................1075 Failure code [DD14KB] Parking lever Sw: Short circuit .............................................................1077 Failure code [DDKFL4] Left Angle Sw:Signal mismatch ...............................................................1079 Failure code [DDKGL4] Right Angle Sw:Signal mismatch ..............................................................1081 Failure code [DDKHKA] iB Sw:Open ..................................................................................1083 Failure code [DDKHKB] iB Sw:Short circuit .........................................................................1085 Failure code [DDN7KA] Weq pitch Sw: Open ..........................................................................1087 Failure code [DDN7KB] Weq pitch Sw: Short circuit .................................................................1089 Failure code [DDNLKA] Weq lock Sw: Open ...........................................................................1091 Failure code [DDNLKB] Weq lock Sw: Short circuit ..................................................................1093 Failure code [DGS1KA] Hyd oil temp sensor:Open ....................................................................1095 Failure code [DGS1KX] Hyd oil temp: signal abnormal ...............................................................1096 Failure code [DGT1KA] T/C oil temp sensor:Open ....................................................................1098 Failure code [DGT1KX] T/C oil temp sensor:Out of normal range .....................................................1099 Failure code [DH21KA] Weq pressure sensor:Open ....................................................................1101 Failure code [DH21KB] Work equipment pressure sensor: Hot Short ...................................................1103 Failure code [DHA4KA] Air Cleaner Clogging Sensor Open Circuit ....................................................1105 Failure code [DHTDKA] T/C pressure sensor: Open ...................................................................1106 Failure code [DHTDKB] T/C pressure sensor:Hot Short ...............................................................1108 Failure code [DK10KA] Fuel control Dial: Open .....................................................................1110 Failure code [DK10KB] Fuel control Dial:Short circuit .............................................................1112 Failure code [DK30KA] ST lever1: Open .............................................................................1114 Failure code [DK30KB] ST lever: Hot Short .........................................................................1116 Failure code [DK30KX] ST lever: Main and Sub Error ................................................................1118 Failure code [DK30KZ] ST lever: Main and Sub Error ................................................................1119 Failure code [DK30L8] ST lever:Signal mismatch ....................................................................1120 Failure code [DK31KA] ST lever2: Open .............................................................................1121 Failure code [DK31KB] ST lever2: Hot Short ........................................................................1123 Failure code [DK40KA] Brake potentiometer: Open ...................................................................1125 Failure code [DK40KB] Brake potentiometer:Hot Short ...............................................................1127 Failure code [DK55KX] FR lever:Main and Sub Error .................................................................1129 Failure code [DK55KZ] FR lever:Main and Sub Error .................................................................1130 Failure code [DK55L8] FR lever:Signal mismatch ....................................................................1131 Failure code [DK56KA] FR lever1:Open ..............................................................................1132 Failure code [DK56KB] FR lever1:Hot Short .........................................................................1134 Failure code [DK57KA] FR lever2:Open ..............................................................................1136 Failure code [DK57KB] FR lever2:Hot Short .........................................................................1138 Failure code [DKH1KA] Pitch angle sensor: Open ....................................................................1140 Failure code [DKH1KB] Pitch angle sensor: Hot Short ...............................................................1142 Failure code [DLM3KA] Fan rev. sensor:Open ........................................................................1144 Failure code [DLM3MB] Fan control:Mismatch ........................................................................1146 Failure code [DLT3KA] T/M out-speed sensor:Open ...................................................................1147 Failure code [DLT3KB] T/M out-speed sensor:Short circuit ..........................................................1149 Failure code [DR21KX] Camera 2 Picture Rev. Drive Abnormality .....................................................1150 Failure code [DR31KX] Camera 3 Picture Rev. Drive Abnormality .....................................................1151 Failure code [DV20KB] Back-up alarm :Short Circuit ................................................................1152 Failure code [DW5AKA] Pitch select solenoid:Disconnection .........................................................1154 Failure code [DW5AKB] Pitch select solenoid:Short circuit .........................................................1155 Failure code [DW5AKY] Pitch select solenoid:Hot short .............................................................1156 Failure code [DW7BKA] Fan reverse solenoid:Open ...................................................................1158 Failure code [DW7BKB] Fan reverse solenoid:Short circuit ..........................................................1160 Failure code [DWN1KA] Hss EPC RH:Open .............................................................................1161 Failure code [DWN1KB] Hss EPC RH:Short circuit ....................................................................1162 Failure code [DWN1KY] Hss EPC RH:Hot short ........................................................................1163 Failure code [DWN2KA] Hss EPC LH:Open .............................................................................1165 Failure code [DWN2KB] Hss EPC LH:Short circuit ....................................................................1166 Failure code [DWN2KY] Hss EPC LH:Hot short ........................................................................1167 Failure code [DWN5KA] Fan pump solenoid 1 :Open ...................................................................1169 Failure code [DWN5KB] Fan pump solenoid 1 :Short circuit ..........................................................1170 Failure code [DWN5KY] Fan pump solenoid 1: Hot short ..............................................................1171 Failure code [DXA2KA] TVC solenoid 1: Open ........................................................................1173 Failure code [DXA2KB] TVC solenoid 1: Short circuit ...............................................................1174 Failure code [DXA2KY] TVC solenoid 1: Hot short ...................................................................1175 Failure code [DXH1KA] Lock-up ECMV:Open ...........................................................................1177 Failure code [DXH1KB] Lock-up ECMV: Short circuit .................................................................1179 Failure code [DXH1KY] Lock-up ECMV: Hot short .....................................................................1180 Failure code [DXH4KA] 1st clutch ECMV:Open ........................................................................1182 Failure code [DXH4KB] 1st clutch ECMV:Short circuit ...............................................................1183 Failure code [DXH4KY] 1st clutch ECMV:Hot short ...................................................................1184 Failure code [DXH5KA] 2nd clutch ECMV:Open ........................................................................1186 Failure code [DXH5KB] 2nd clutch ECMV:Short circuit ...............................................................1187 Failure code [DXH5KY] 2nd clutch ECMV:Hot short ...................................................................1188 Failure code [DXH6KA] 3rd clutch ECMV:Open ........................................................................1190 Failure code [DXH6KB] 3rd clutch ECMV:Short circuit ...............................................................1191 Failure code [DXH6KY] 3rd clutch ECMV:Hot short ...................................................................1192 Failure code [DXH7KA] R clutch ECMV:Open ..........................................................................1194 Failure code [DXH7KB] R clutch ECMV:Short circuit .................................................................1195 Failure code [DXH7KY] R clutch ECMV:Hot short .....................................................................1196 Failure code [DXH8KA] F clutch ECMV:Open ..........................................................................1198 Failure code [DXH8KB] F clutch ECMV:Short circuit .................................................................1199 Failure code [DXH8KY] F clutch ECMV:Hot short .....................................................................1200 Failure code [DXJ4KA] Weq lock Sol.:Open ..........................................................................1202 Failure code [DXJ4KB] Weq lock Sol.:Short circuit .................................................................1204 Failure code [DXJCKA] Blade angle left EPC:Open ...................................................................1205 Failure code [DXJCKB] Blade angle left EPC:Short circuit ..........................................................1206 Failure code [DXJCKY] Blade angle left EPC:Hot short ..............................................................1207 Failure code [DXJDKA] Blade angle right EPC:Open ..................................................................1209 Failure code [DXJDKB] Blade angle right EPC:Short circuit .........................................................1210 Failure code [DXJDKY] Blade angle right EPC:Hot short .............................................................1211 Troubleshooting of electrical system (E-mode) .........................................................................1213 E-1 Engine does not start (Engine does not crank) .................................................................1213 E-2 Manual preheating does not work ...............................................................................1219 E-3 Automatic preheating does not work ............................................................................1222 E-4 While preheating is working, preheating monitor does not light up .............................................1224 E-5 When starting switch is turned to ON position, machine monitor displays nothing ...............................1226 E-6 When starting switch is turned to ON position (with engine stopped), basic check monitor lights up ............1229 E-7 Air cleaner clogging monitor lights up in yellow while engine is running ......................................1230 E-8 Charge level monitor lights up in red while engine is running .................................................1231 E-9 Engine coolant temperature monitor lights up while engine is running ..........................................1233 E-10 Engine oil pressure monitor lights up in red while engine is running .........................................1234 E-11 Power train oil temperature monitor lights up while engine is running ........................................1235 E-12 Hydraulic oil temperature monitor lights up while engine is running ..........................................1236 E-13 Engine coolant temperature gauge does not indicate correct temparature .......................................1237 E-14 Fuel level gauge does not indicate correct level .............................................................1238 E-15 Power train oil temperature gauge does not indicate correct temperature ......................................1240 E-16 Hydraulic oil temperature gauge does not indicate correct temperature ........................................1241 E-17 Operation mode does not change ...............................................................................1242 E-18 Gearshift mode does not change ...............................................................................1243 E-19 Operating customize switch does not display customize screen .................................................1244 E-20 Modifying setting on customize screen does not change setting of machine .....................................1245 E-21 Reverse slow mode does not function properly .................................................................1246 E-22 Alarm buzzer does not sound or does not stop sounding ........................................................1247 E-23 While starting switch is in OFF position, service meter is not displayed .....................................1248 E-24 Service mode cannot be selected ..............................................................................1249 E-25 Horn does not sound ..........................................................................................1250 E-26 Horn does not stop sounding ..................................................................................1251 E-27 Backup alarm does not sound ..................................................................................1252 E-28 Backup alarm does not stop sounding ..........................................................................1254 E-29 Headlamp does not light up ...................................................................................1255 E-30 Rear lamp does not light up ..................................................................................1258 E-31 No wiper operates continuously or intermittently .............................................................1260 E-32 Front wiper does not operate (Failure in both continuous and intermittent operations) ........................1263 E-33 Rear wiper does not operate (Failure in both continuous and intermittent operations) .........................1266 E-34 Left door wiper does not operate (Failure of both continuous and intermittent operations) ....................1269 E-35 Right door wiper does not operate (Failure of both continuous and intermittent operations) ...................1272 E-36 KOMTRAX system does not operate properly .....................................................................1275 Troubleshooting of hydraulic and mechanical system (H-mode) ...........................................................1277 Information described in troubleshooting table (H-mode) ...........................................................1277 System diagram of hydraulic and mechanical system .................................................................1278 List of Failure Mode and Cause ....................................................................................1280 H-1 Machine lacks power (insufficient drawbar pull) ...............................................................1283 H-2 Machine cannot travel (at 2nd or 3rd speed) ...................................................................1285 H-3 Machine does not start at all gear speeds .....................................................................1286 H-4 Machine travels only in one direction, either forward or in reverse ...........................................1287 H-5 Large time lag at gear shifting or directional selection ......................................................1288 H-6 Machine cannot be steered (machine does not turn left or right) ...............................................1289 H-7 Steering speed or power is insufficient .......................................................................1290 H-8 Brake does not operate ........................................................................................1291 H-9 Torque converter does not lock up .............................................................................1292 H-10 Power train oil overheats ....................................................................................1293 H-11 Unusual noise is heard from around HSS and work equipment pump or HSS motor ..................................1294 H-12 All work equipment operates slowly ...........................................................................1295 H-13 All work equipment does not operate ..........................................................................1296 H-14 Blade lift speed or power is low .............................................................................1297 H-15 Blade tilt speed or power is low .............................................................................1298 H-16 Blade angle speed or power is low ............................................................................1299 H-17 Ripper lift speed or power is low ............................................................................1300 H-18 Hydraulic drift of lifted blade is large .....................................................................1301 H-19 Hydraulic drift of tilted blade is large .....................................................................1302 H-20 Hydraulic drift of lifted ripper is large ....................................................................1303 H-21 Fan speed is abnormal (high, low, or no rotation) ............................................................1304 H-22 Unusual noise is heard from around fan .......................................................................1306 Troubleshooting of engine (S-mode) ....................................................................................1307 Information contained in troubleshooting table (S mode) ...........................................................1307 S-1 Engine does not crank when starting switch is turned to START position ........................................1308 S-2 The engine cranks but exhaust smoke does not come out .........................................................1309 S-3 Fuel is being injected but engine does not start (incomplete combustion: engine cranks but does not start) ....1310 S-4 Startability is poor ..........................................................................................1311 S-5 Engine does not pick up smoothly ..............................................................................1313 S-6 Engine stops during operation .................................................................................1315 S-7 Engine runs rough or is unstable ..............................................................................1317 S-8 Engine lacks power ............................................................................................1318 S-9 KDPF gets clogged in a short time .............................................................................1320 S-10 Engine oil consumption is excessive ..........................................................................1322 S-11 Engine oil becomes contaminated early ........................................................................1323 S-12 Fuel consumption is excessive ................................................................................1324 S-13 Oil is in coolant (or coolant spurts or coolant level goes down) .............................................1325 S-14 Oil pressure drops ...........................................................................................1326 S-15 Fuel mixes into engine oil ...................................................................................1327 S-16 Water mixes into engine oil (milky) ..........................................................................1328 S-17 Coolant temperature rises too high (overheating) .............................................................1329 S-18 Unusual noise is heard .......................................................................................1330 S-19 Vibration is excessive .......................................................................................1331 S-20 Air cannot be bled from fuel circuit .........................................................................1332 S-21 Frequent active regeneration .................................................................................1333 S-22 Active regeneration takes time ...............................................................................1334 S-23 White smoke is exhausted during active regeneration ..........................................................1335 50 Disassembly and assembly ...............................................................................................1337 Table of contents .....................................................................................................1338 Related information on disassembly and assembly .......................................................................1340 How to read this manual ...........................................................................................1340 Coating materials list ............................................................................................1342 Special tool list .................................................................................................1346 Sketches of special tools .........................................................................................1358 Engine and cooling system .............................................................................................1373 Removal and installation of supply pump assembly ..................................................................1373 Removal and installation of fuel injector assembly ................................................................1377 Removal and installation of cylinder head assembly ................................................................1391 Removal and installation of radiator assembly .....................................................................1409 Removal and installation of aftercooler ...........................................................................1414 Removal and installation of hydraulic oil cooler assembly .........................................................1417 Removal and installation of power train oil cooler assembly .......................................................1419 Removal and installation of cooling fan drive assembly ............................................................1421 Removal and installation of cooling fan motor assembly ............................................................1423 Removal and installation of engine assembly .......................................................................1425 Removal and installation of damper assembly .......................................................................1432 Removal and installation of engine front seal .....................................................................1435 Removal and installation of engine rear seal ......................................................................1438 Removal and installation of engine hood assembly ..................................................................1446 Removal and installation of fuel tank assembly ....................................................................1448 Removal and installation of KDPF assembly .........................................................................1450 Disassembly and assembly of KDPF ..................................................................................1454 Removal and installation of KCCV assembly .........................................................................1462 Removal and installation of air cleaner assembly ..................................................................1466 Power train ...........................................................................................................1467 Removal and installation of power train unit assembly .............................................................1467 Disconnecting and connecting of power train unit assembly .........................................................1472 Disassembly and assembly of PTO ...................................................................................1477 Disassembly and assembly of torque converter ......................................................................1481 Disassembly and assembly of TORQFLOW transmission .................................................................1490 Disassembly and assembly of HSS ...................................................................................1514 Removal and installation of final drive assembly ..................................................................1533 Disassembly and assembly of final drive ...........................................................................1535 Undercarriage and frame ...............................................................................................1548 Removal and installation of track frame assembly ..................................................................1548 Removal and installation of idler assembly ........................................................................1550 Disassembly and assembly of idler .................................................................................1552 Removal and installation of recoil spring assembly ................................................................1556 Disassembly and assembly of recoil spring .........................................................................1557 Removal and installation of track roller assembly .................................................................1561 Disassembly and assembly of track roller ..........................................................................1562 Removal and installation of carrier roller assembly ...............................................................1566 Disassembly and assembly of carrier roller ........................................................................1567 Separation and connection of track shoe assembly (Standard type track shoe) .......................................1570 Separation and connection of track shoe assembly (PLUS type track shoe) ...........................................1573 Overall disassembly and assembly of track shoe (standard type track shoe) .........................................1574 Overall disassembly and assembly of track shoe (PLUS type track shoe) .............................................1587 Disassembly and assembly of one link in field (standard type track shoe) ..........................................1599 Disassembly and assembly of one link in field (PLUS type track shoe) ..............................................1606 Removal and installation of pivot shaft assembly ..................................................................1611 Removal and installation of equalizer bar assembly ................................................................1612 Disassembly and assembly of equalizer bar side bushing ............................................................1614 Hydraulic system ......................................................................................................1615 Removal and installation of hydraulic tank assembly ...............................................................1615 Removal and installation of control valve assembly ................................................................1618 Disassembly and assembly of control valve .........................................................................1622 Disassembly and assembly of blade PPC valve .......................................................................1623 Disassembly and assembly of ripper PPC valve ......................................................................1624 Removal and installation of HSS pump and cooling fan pump assembly ................................................1625 Removal and installation of steering lubrication pump and power train pump assembly ...............................1627 Removal and installation of cooling scavenging pump assembly ......................................................1629 Removal and installation of HSS motor assembly ....................................................................1630 Disassembly and assembly of hydraulic cylinder ....................................................................1632 Work equipment ........................................................................................................1638 Removal and installation of blade assembly (ST-TPP dozer) .........................................................1638 Removal and installation of blade assembly (PAT dozer) ............................................................1640 Removal and installation of ripper assembly .......................................................................1642 Cab and its attachments ...............................................................................................1645 Removal and installation of ROPS cab assembly .....................................................................1645 Removal and installation of operator's cab glass (adhesion glass) .................................................1651 Removal and installation of operator's seat .......................................................................1659 Removal and installation of seat belt .............................................................................1660 Removal and installation of air conditioner unit assembly .........................................................1661 Removal and installation of air conditioner compressor assembly ...................................................1665 Electrical system .....................................................................................................1666 Removal and installation of machine monitor assembly ..............................................................1666 Removal and installation of engine controller assembly ............................................................1667 Removal and installation of power train controller assembly .......................................................1668 Removal and installation of mass air flow and temperature sensor ..................................................1670 Removal and installation of KOMTRAX terminal ......................................................................1671 60 Maintenance standard ...................................................................................................1673 Table of contents .....................................................................................................1674 Engine and cooling system .............................................................................................1675 Engine mount ......................................................................................................1675 Damper ............................................................................................................1676 Cooling system ....................................................................................................1678 Cooling fan pump ..................................................................................................1679 Cooling fan motor .................................................................................................1682 Power train ...........................................................................................................1684 Power train mount .................................................................................................1684 Universal joint ...................................................................................................1686 Torque converter and PTO ..........................................................................................1687 Transmission ......................................................................................................1690 Transmission control valve ........................................................................................1694 Forward and reverse clutch ECMV and gear shift clutch ECMV ........................................................1695 Lockup clutch ECMV ................................................................................................1696 Main relief valve and torque converter relief valve ...............................................................1697 Transmission lubricating oil relief valve .........................................................................1698 Bevel gear shaft, HSS, and brake ..................................................................................1699 Brake valve .......................................................................................................1704 Final drive .......................................................................................................1705 Sprocket ..........................................................................................................1708 Undercarriage and frame ...............................................................................................1712 Main frame ........................................................................................................1712 Suspension ........................................................................................................1714 Track frame and idler cushion .....................................................................................1716 Idler .............................................................................................................1718 Track roller ......................................................................................................1720 Carrier roller ....................................................................................................1724 Track shoe ........................................................................................................1726 Hydraulic system ......................................................................................................1731 Hydraulic tank ....................................................................................................1731 Scavenging pump ...................................................................................................1732 Steering lubricating oil pump and power train pump ................................................................1733 HSS pump ..........................................................................................................1734 HSS motor .........................................................................................................1736 Control valve .....................................................................................................1738 Blade PPC valve ...................................................................................................1745 Ripper PPC valve ..................................................................................................1747 Quick drop valve ..................................................................................................1749 Work equipment lock solenoid valve ................................................................................1751 Angle control EPC valve ...........................................................................................1754 Work equipment ........................................................................................................1755 Work equipment ....................................................................................................1755 Cutting edge and end bit ..........................................................................................1762 Ripper ............................................................................................................1764 Lift cylinder .....................................................................................................1765 Tilt cylinder .....................................................................................................1766 Pitch cylinder ....................................................................................................1767 Angle cylinder ....................................................................................................1768 Ripper cylinder ...................................................................................................1769 Cab and its attachments ...............................................................................................1770 Cab mount .........................................................................................................1770 80 Appendix ...............................................................................................................1771 Table of contents .....................................................................................................1772 Air conditioner components ............................................................................................1773 Precautions for refrigerant .......................................................................................1773 Air conditioner component .........................................................................................1774 Configuration and function of refrigeration cycle .................................................................1777 Outline of refrigeration cycle ....................................................................................1778 Air conditioner unit ..............................................................................................1780 Dual pressure switch ..............................................................................................1787 Air conditioner controller ........................................................................................1788 Compressor ........................................................................................................1789 Condenser .........................................................................................................1790 Receiver drier ....................................................................................................1791 Sunlight sensor ...................................................................................................1792 Outside air temperature sensor ....................................................................................1793 Procedure for testing and troubleshooting .........................................................................1794 Circuit diagram and arrangement of connector pins .................................................................1796 System diagram ....................................................................................................1798 Input and output signals of the air conditioner controller ........................................................1799 Layout of air conditioner related parts and connectors ............................................................1801 Testing air leakage (duct) ........................................................................................1810 Testing with self-diagnosis function ..............................................................................1813 How to open the electrical system abnormality record screen in service mode of the machine monitor ................1814 Testing vent (mode) changeover ....................................................................................1816 Testing FRESH/RECIRC air changeover ...............................................................................1817 Testing sunlight sensor ...........................................................................................1818 Testing (dual) pressure switch for refrigerant ....................................................................1819 Testing relays ....................................................................................................1820 Troubleshooting chart 1 ...........................................................................................1821 Troubleshooting chart 2 ...........................................................................................1822 Information in troubleshooting table ..............................................................................1825 Failure code list related to air conditioner ......................................................................1826 Failure code [879AKA] A/C Inner Sensor Open Circuit ...............................................................1827 Failure code [879AKB] A/C Inner Sensor Short Circuit ..............................................................1828 Failure code [879BKA] A/C Outer sensor Open Circuit ...............................................................1829 Failure code [879BKB] A/C Outer sensor Short Circuit ..............................................................1831 Failure code [879CKA] Ventilating Sensor Open Circuit .............................................................1833 Failure code [879CKB] Ventilating Sensor Short Circuit ............................................................1834 Failure code [879DKZ] Sunlight sensor Open or Short Circuit .......................................................1835 Failure code [879EMC] Ventilation Damper Abnormality ..............................................................1837 Failure code [879FMC] Air Mix Damper Abnormality ..................................................................1838 Failure code [879GKX] Refrigerant Abnormality .....................................................................1839 A-1 Troubleshooting for power supply system (Air conditioner does not operate) ....................................1840 A-2 Troubleshooting for compressor system (Air is not cooled) .....................................................1842 A-3 Troubleshooting for blower motor system (Air does not come out or air flow is abnormal) .......................1845 A-4 Troubleshooting for FRESH/RECIRC air changeover ...............................................................1847 Troubleshooting with gauge pressure ...............................................................................1849 Connection of service tool ........................................................................................1852 Precautions for disconnecting and connecting air conditioner piping ...............................................1854 Handling of compressor oil ........................................................................................1856 90 Diagrams and drawings ..................................................................................................1859 Table of contents .....................................................................................................1860 Hydraulic circuit diagram .............................................................................................1861 Symbols in hydraulic circuit diagram ..............................................................................1861 Power train hydraulic circuit diagram .............................................................................1865 Hydraulic circuit diagram .........................................................................................1866 Electric circuit diagram ..............................................................................................1872 Symbols in electric circuit diagram ...............................................................................1872 Electric circuit diagram ..........................................................................................1876 Electric circuit diagram for air conditioner unit .................................................................1889 INDEX......................................................................................................................1890
KOMATSU D65EX-17, D65PX-17, D65WX-17 CRAWLER BULLDOZER SHOP MANUAL SEN05536-02 – PDF DOWNLOAD:
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