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Komatsu PC400-7E0, PC400LC-7E0, PC450-7E0, PC450LC-7E0 Excavator Shop Manual SEN03578-04 – DOWNLOAD
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Komatsu PC400-7E0, PC400LC-7E0, PC450-7E0, PC450LC-7E0 Excavator Shop Manual
SERIAL NUMBERS:
PC400/400LC- 60001-60089
PC400/400LC- 65001 and up
PC450/450LC- 30001-30058
PC450/450LC- 65001 and up
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Description
Komatsu PC400-7E0, PC400LC-7E0, PC450-7E0, PC450LC-7E0 Excavator Shop Manual
FILE DETAILS:
Komatsu PC400-7E0, PC400LC-7E0, PC450-7E0, PC450LC-7E0 Excavator Shop Manual
Brands: Komatsu
Equipment Type: Hydraulic Excavator
Manuals Type: Shop Manual
Machine Model: PC400-7E0, PC400LC-7E0, PC450-7E0, PC450LC-7E0
Serial Number: 60001-60089, 65001 and up, 30001-30058
Book Code: SEN03578-04
Language: English
Pages: 1028
File Format: Portable Document Format (PDF)
DESCRIPTION:
Komatsu PC400-7E0, PC400LC-7E0, PC450-7E0, PC450LC-7E0 Excavator Shop Manual
How to read the shop manual:
1. Composition of shop manual:
This shop manual contains the necessary technical information for services performed in a workshop. For ease of understanding, the manual is divided into the following sections.
00. Index and foreword:
This section contains the index, foreword, safety and basic information. If any revision is made, the LIST OF REVISED PAGES will be added.
01. Specification:
This section explains the specifications of the machine.
10. Structure and function:
This section explains the structure and function of each component. It 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:
This section explains the standard values for new machine and judgement criteria for testing, adjusting, and troubleshooting. This standard value table is used to check the standard values in testing and adjusting and to judge parts in troubleshooting.
30. Testing and adjusting:
This section explains measuring tools and measuring methods for testing and adjusting, as well as the adjusting method of each part. The standard values and judgment criteria for “Testing and adjusting” are explained in “Standard value table”.
40. Troubleshooting:
This section explains how to find out failed parts and how to repair them. The troubleshooting is divided by failure modes. The “S mode” of the troubleshooting related to the engine may be also explained in the Chassis volume and Engine volume. In this case, see the Chassis volume.
50. Disassembly and assembly:
This section explains the special tools and procedures for removing, installing, disassembling, and assembling each component, as well as precautions for them. In addition, tightening torque, and quantity and weight of coating material, oil, grease, and coolant necessary for the work are also explained.
60. Maintenance standard:
This section gives maintenance standard values of each component. The maintenance standard sub-section explains the criteria and remedies for disassembly and service.
80. Appendix:
This section explains the structure, function, testing, adjusting, and troubleshooting for the equipment not classifiable in other sections.
90. Diagrams and drawings (chassis volume) /Repair and replacement of parts (engine volume):
- Chassis volume
This section gives hydraulic circuit diagrams and electrical circuit diagrams. - Engine volume
This section explains the method of remanufacturing and repairing engine and replacing parts.
TABLE OF CONTENTS:
Komatsu PC400-7E0, PC400LC-7E0, PC450-7E0, PC450LC-7E0 Excavator Shop Manual
COVER......................................................................................... 1 00 Index and foreword......................................................................... 0 Index..................................................................................... 2 Composition of shop manual............................................................ 3 Table of contents..................................................................... 5 Foreword and general information.......................................................... 14 Safety notice......................................................................... 15 How to read the shop manual........................................................... 20 Explanation of terms for maintenance standard......................................... 22 Handling of electric equipment and hydraulic component................................ 24 Handling of connectors newly used for engines......................................... 33 How to read electric wire code........................................................ 36 Precautions when carrying out operation............................................... 39 Method of disassembling and connecting push-pull type coupler......................... 42 Standard tightening torque table...................................................... 45 Conversion table...................................................................... 49 01 Specification.............................................................................. 0 Specification and technical data.......................................................... 56 Specification dimension drawings...................................................... 57 Specifications........................................................................ 61 Weight table.......................................................................... 67 Table of fuel, coolant and lubricants................................................. 71 10 Structure, function and maintenance standard............................................... 0 Engine and cooling system................................................................. 74 Engine related parts.................................................................. 75 Radiator, oil cooler and aftercooler.................................................. 76 Power train............................................................................... 78 Power train........................................................................... 79 Final drive........................................................................... 81 Sprocket.............................................................................. 83 Swing machinery....................................................................... 85 Swing circle.......................................................................... 87 Undercarriage and frame................................................................... 90 Track frame and recoil spring......................................................... 91 Idler................................................................................. 93 Carrier roller........................................................................ 95 Track roller.......................................................................... 96 Track shoe............................................................................ 97 Hydraulic system, Part 1.................................................................. 102 Hydraulic equipment layout drawing.................................................... 103 Hydraulic tank and filter............................................................. 105 Hydraulic pump........................................................................ 107 Hydraulic system, Part 2.................................................................. 132 Control valve......................................................................... 133 CLSS.................................................................................. 157 Functions and operation by valve...................................................... 161 Merge-divider valve................................................................... 178 Attachment circuit selector valve..................................................... 203 Holding valve......................................................................... 205 Hydraulic system, Part 3.................................................................. 212 Valve control......................................................................... 213 PPC valve............................................................................. 215 Solenoid valve........................................................................ 231 PPC accumulator....................................................................... 233 Return oil filter..................................................................... 234 Center swivel joint................................................................... 235 Travel motor.......................................................................... 236 Swing motor........................................................................... 248 Hydraulic cylinder.................................................................... 257 Work equipment............................................................................ 262 Work equipment........................................................................ 263 Dimensions of components.............................................................. 267 Cab and its attachments................................................................... 272 Air conditioner piping................................................................ 273 Electrical system......................................................................... 276 Engine control........................................................................ 277 Electronic control system............................................................. 286 Monitor system........................................................................ 311 Sensor................................................................................ 329 KOMTRAX system........................................................................ 332 20 Standard value table....................................................................... 0 Standard service value table.............................................................. 336 Standard value table for engine related parts......................................... 337 Standard value table for chassis related parts (Backhoe specification)................ 338 Standard value table for chassis related parts (Loading shovel specification)......... 347 30 Testing and adjusting...................................................................... 0 Testing and adjusting, Part 1............................................................. 358 Tools for testing, adjusting and troubleshooting...................................... 360 Measuring engine speed................................................................ 364 Measuring air boost pressure.......................................................... 365 Measuring exhaust temperature......................................................... 366 Measuring exhaust gas color........................................................... 367 Adjusting valve clearance............................................................. 368 Measuring compression pressure........................................................ 370 Measuring blow-by pressure............................................................ 372 Measuring engine oil pressure......................................................... 373 Measuring EGR valve and bypass valve drive pressure................................... 374 Handling fuel system parts............................................................ 375 Releasing residual pressure from fuel system.......................................... 375 Measuring fuel pressure............................................................... 376 Handling during cylinder cut-out operation............................................ 377 Handling during no injection cranking operation....................................... 377 Measuring fuel return rate and leakage................................................ 378 Bleeding air from fuel circuit........................................................ 381 Checking fuel circuit for leakage..................................................... 383 Checking and adjusting fan belt and alternator belt tension........................... 384 Checking and adjusting air conditioner compressor belt tension........................ 385 Measuring swing circle bearing clearance.............................................. 386 Checking and adjusting track shoe tension............................................. 387 Measuring and adjusting oil pressure in work equipment, swing, and travel circuits.... 388 Measuring control circuit basic pressure.............................................. 392 Checking and adjusting pump PC control circuit oil pressure........................... 393 Checking and adjusting pump LS control circuit oil pressure........................... 396 Measuring solenoid valve output pressure.............................................. 401 Measuring PPC valve output pressure................................................... 404 Adjusting play of work equipment and swing PPC valves................................. 405 Inspecting locations of hydraulic drift of work equipment............................. 406 Releasing residual pressure from hydraulic circuit.................................... 408 Measuring oil leakage amount.......................................................... 409 Bleeding air from various parts....................................................... 412 Testing and adjusting, Part 2............................................................. 416 Special functions of machine monitor.................................................. 417 Testing and adjusting, Part 3............................................................. 446 Procedure for turning on KOMTRAX terminal............................................. 447 Indication by KOMTRAX terminal lamps.................................................. 450 Handling voltage circuit of engine controller......................................... 453 Preparation work for troubleshooting of electrical system............................. 454 Procedure for testing diodes.......................................................... 459 Pm clinic service..................................................................... 460 Undercarriage troubleshooting report.................................................. 467 40 Troubleshooting............................................................................ 0 Failure code table and fuse locations..................................................... 470 Failure codes table................................................................... 471 Before carrying out troubleshooting when failure code is displayed.................... 475 Information related to troubleshooting.................................................... 480 Points to remember when troubleshooting............................................... 481 Sequence of events in troubleshooting................................................. 482 Checks before troubleshooting......................................................... 483 Classification and troubleshooting steps.............................................. 484 Information in troubleshooting table.................................................. 485 Connection table for connector pin numbers............................................ 490 T- branch box and T- branch adapter table............................................. 526 Troubleshooting by failure code (Display of code), Part 1................................. 530 Failure code [AA10NX] Aircleaner Clogging............................................. 533 Failure code [AB00KE] Charge Voltage Low.............................................. 535 Failure code [B@BAZG] Eng Oil Press. Low.............................................. 537 Failure code [B@BAZK] Eng. Oil Level Low.............................................. 539 Failure code [B@BCNS] Eng. Water Overheat............................................. 541 Failure code [B@BCZK] Eng. Water Lvl Low.............................................. 543 Failure code [B@HANS] Hydr. Oil Overheat.............................................. 545 Failure code [CA111] ECM Critical Internal Failure.................................... 547 Failure code [CA115] Eng Ne and Bkup Speed Sens Error................................. 549 Failure code [CA122] Chg Air Press Sensor High Error.................................. 550 Failure code [CA123] Chg Air Press Sensor Low Error................................... 552 Failure code [CA131] Throttle Sensor High Error....................................... 553 Failure code [CA132] Throttle Sensor Low Error........................................ 555 Failure code [CA135] Eng Oil Press Sensor High Error.................................. 556 Failure code [CA141] Eng Oil Press Sensor Low Error................................... 558 Failure code [CA144] Coolant Temp Sens High Error..................................... 559 Failure code [CA145] Coolant Temp Sens Low Error...................................... 561 Failure code [CA153] Chg Air Temp Sensor High Error................................... 563 Failure code [CA154] Chg Air Temp Sensor Low Error.................................... 565 Failure code [CA187] Sens Supply 2 Volt Low Error..................................... 567 Failure code [CA221] Ambient Press Sens High Error.................................... 569 Failure code [CA222] Ambient Press Sens Low Error..................................... 571 Failure code [CA227] Sens Supply 2 Volt High Error.................................... 572 Failure code [CA234] Eng Overspeed.................................................... 574 Failure code [CA238] Ne Speed Sens Supply Volt Error.................................. 575 Failure code [CA263] Fuel Temp Sensor High Error...................................... 577 Failure code [CA265] Fuel Temp Sensor Low Error....................................... 579 Failure code [CA271] IMV/PCV1 Short Error............................................. 580 Failure code [CA272] IMV/PCV1 Open Error.............................................. 581 Failure code [CA273] PCV2 Short Error................................................. 583 Failure code [CA274] PCV2 Open Error.................................................. 584 Failure code [CA322] Inj #1 (L/B#1) Open/Short Error.................................. 585 Failure code [CA323] Inj #5 (L/B#5) Open/Short Error.................................. 587 Failure code [CA324] Inj #3 (L/B#3) Open/Short Error.................................. 589 Failure code [CA325] Inj #6 (L/B#6) Open/Short Error.................................. 591 Failure code [CA331] Inj #2 (L/B#2) Open/Short Error.................................. 593 Failure code [CA332] Inj #4 (L/B#4) Open/Short Error.................................. 595 Troubleshooting by failure code (Display of code), Part 2................................. 598 Failure code [CA342] Calibration Code Incompatibility................................. 600 Failure code [CA351] Injectors Drive Circuit Error.................................... 601 Failure code [CA352] Sens Supply 1 Volt Low Error..................................... 603 Failure code [CA386] Sens Supply 1 Volt High Error.................................... 605 Failure code [CA441] Battery Voltage Low Error........................................ 607 Failure code [CA442] Battery Voltage High Error....................................... 609 Failure code [CA449] Rail Press Very High Error....................................... 611 Failure code [CA451] Rail Press Sensor High Error..................................... 615 Failure code [CA452] Rail Press Sensor Low Error...................................... 617 Failure code [CA553] Rail Press High Error............................................ 619 Failure code [CA554] Rail Press Sensor In Range Error................................. 620 Failure code [CA559] Rail Press Low Error............................................. 621 Failure code [CA689] Eng Ne Speed Sensor Error........................................ 625 Failure code [CA731] Eng Bkup Speed Sens Phase Error.................................. 627 Failure code [CA757] All Persistent Data Lost Error................................... 628 Failure code [CA778] Eng Bkup Speed Sensor Error...................................... 629 Failure code [CA1228] EGR Valve Servo Error 1......................................... 631 Failure code [CA1625] EGR Valve Servo Error 2......................................... 632 Failure code [CA1633] KOMNET Datalink Timeout Error................................... 633 Failure code [CA2185] Throt Sens Sup Volt High Error.................................. 635 Failure code [CA2186] Throt Sens Sup Volt Low Error................................... 637 Failure code [CA2249] Rail Press Very Low Error....................................... 638 Failure code [CA2271] EGR Valve Lift Sens High Error.................................. 639 Failure code [CA2272] EGR Valve Lift Sens Low Error................................... 641 Failure code [CA2351] EGR Valve Sol Current High Error................................ 643 Failure code [CA2352] EGR Valve Sol Current Low Error................................. 645 Failure code [CA2555] Grid Htr Relay Volt Low Error................................... 647 Failure code [CA2556] Grid Htr Relay Volt High Error.................................. 649 Failure code [D110KB] Battery Relay Drive Short Circuit............................... 651 Failure code [D196KA] Service Return Relay Open Circuit............................... 653 Failure code [D196KB] Service Return Relay Short Circuit.............................. 655 Failure code [DA25KP] 5V Sensor 1 Power Abnormality................................... 657 Failure code [DA80MA] Auto. Lub. Abnormal............................................. 659 Troubleshooting by failure code (Display of code), Part 3................................. 662 Failure code [DA2RMC] Pump Comm. Abnormality.......................................... 665 Failure code [DA2SKQ] Model Selection Abnormality..................................... 667 Failure code [DAFRMC] Monitor Comm. Abnormality....................................... 669 Failure code [DGH2KB] Hydr Oil Sensor Short Circuit................................... 671 Failure code [DHPAMA] F Pump Press Sensor Abnormality................................. 673 Failure code [DHPBMA] R Pump Press Sensor Abnormality................................. 675 Failure code [DHS3MA] Arm Curl PPC Press Sensor Abnormality........................... 677 Failure code [DHS4MA] Bucket Curl PPC Press Sensor Abnormality........................ 679 Failure code [DW43KA] Travel Speed Sol. Open Circuit.................................. 681 Failure code [DW43KB] Travel Speed Sol. Short Circuit................................. 683 Failure code [DW45KA] Swing Brake Sol. Open Circuit................................... 685 Failure code [DW45KB] Swing Brake Sol. Short Circuit.................................. 689 Failure code [DW91KA] Travel Junction Sol. Open Circuit............................... 691 Failure code [DW91KB] Travel Junction Sol. Short Circuit.............................. 693 Failure code [DWJ0KA] Merge-divider Sol. Open Circuit................................. 695 Failure code [DWJ0KB] Merge-Divider Sol. Short Circuit................................ 697 Failure code [DWK0KA] 2-stage Relief Sol. Open Circuit................................ 699 Failure code [DWK0KB] 2-stage Relief Sol. Short Circuit............................... 701 Failure code [DXA0KA] PC-EPC Sol. Open Circuit........................................ 703 Failure code [DXA0KB] PC-EPC Sol. Short Circuit....................................... 705 Failure code [DXE0KA] LS-EPC Sol. Open Circuit........................................ 707 Failure code [DXE0KB] LS-EPC Sol. Short Circuit....................................... 709 Failure code [DXE4KA] Service Current EPC Open Circuit................................ 711 Failure code [DXE4KB] Service Current EPC Short Circuit............................... 712 Failure code [DY20KA] Wiper Working Abnormality....................................... 713 Failure code [DY20MA] Wiper Parking Abnormality....................................... 715 Failure code [DY2CKB] Washer Drive Short Circuit...................................... 717 Failure code [DY2DKB] Wiper Drive (Fwd) Short Circuit................................. 719 Failure code [DY2EKB] Wiper Drive (Rev) Short Circuit................................. 721 Troubleshooting of electrical system (E-mode)............................................. 724 Before carrying out troubleshooting of electrical system.............................. 727 Information contained in troubleshooting table........................................ 729 E-1 Engine does not start............................................................. 730 E-2 Auto-decelerator does not operate................................................. 733 E-3 Automatic warming-up does not operate............................................. 735 E-4 Preheater does not operate........................................................ 737 E-5 All work equipment, swing, and travel mechanism do not move....................... 739 E-6 Power maximizing function does not operate........................................ 741 E-7 Machine monitor does not display at all........................................... 743 E-8 Machine monitor does not display some items....................................... 745 E-9 Contents of display by machine monitor are different from applicable machine...... 745 E-10 Fuel level monitor was lighted in red while engine running....................... 746 E-11 Engine coolant temperature gauge does not indicate normally...................... 747 E-12 Hydraulic oil temperature gauge does not indicate normally....................... 749 E-13 Fuel level gauge does not operate normally....................................... 750 E-14 Swing lock monitor does not indicate normally.................................... 751 E-15 When monitor switch is operated, monitor displays nothing........................ 753 E-16 Windshield wiper does not operate................................................ 755 E-17 Machine push-up function does not operate normally............................... 759 E-18 Monitoring function fails to display “boom RAISE” normally....................... 761 E-19 Monitoring function fails to display “boom LOWER” normally....................... 763 E-20 Monitoring function fails to display “arm IN” normally........................... 765 E-21 Monitoring function fails to display “arm OUT” normally.......................... 767 E-22 Monitoring function fails to display “bucket CURL” normally...................... 769 E-23 Monitoring function fails to display “bucket DUMP” normally...................... 771 E-24 Monitoring function fails to display “swing” normally............................ 773 E-25 Monitoring function fails to display “travel” normally........................... 775 E-26 Monitoring function fails to display “travel differential pressure” normally..... 777 E-27 Monitoring function fails to display “service” normally.......................... 779 E-28 The KOMTRAX system does not operate normally..................................... 781 E-29 Air conditioner does not operate................................................. 783 E-30 Travel alarm does not sound or does not stop sounding............................ 785 E-31 Horn does not sound.............................................................. 787 Troubleshooting of hydraulic and mechanical system (H-mode)............................... 790 System chart for hydraulic and mechanical system...................................... 793 Information contained in troubleshooting table........................................ 795 H-1 All work equipment lack power, or travel and swing speeds are slow................ 797 H-2 Engine speed sharply drops or engine stalls....................................... 799 H-3 No work equipment, swing or travel move........................................... 800 H-4 Abnormal noise is heard from around hydraulic pump................................ 800 H-5 Auto-decelerator does not work.................................................... 801 H-6 Fine control mode does not function or responds slow.............................. 801 H-7 Boom moves slowly or lacks power.................................................. 802 H-8 Arm moves slowly or lacks power................................................... 803 H-9 Bucket moves slowly or lacks power................................................ 804 H-10 Work equipment does not move in its single operation............................. 804 H-11 Work equipment has a bit too fast hydraulic drift................................ 805 H-12 Work equipment has big time lag.................................................. 807 H-13 Other work equipment moves when relieving single circuit......................... 807 H-14 Power max. switch does not operate............................................... 807 H-15 Machine push-up function does not operate........................................ 808 H-16 In compound operation of work equipment, speed of part loaded more is low........ 809 H-17 When machine swings and raises boom simultaneously, boom rising speed is low..... 809 H-18 When machine swings and travels simultaneously, travel speed lowers largely...... 809 H-19 Machine deviates during travel................................................... 810 H-20 Travel speed is low.............................................................. 811 H-21 Machine is not steered well or steering power is low............................. 812 H-22 Travel speed does not change or travel speed is low or high...................... 813 H-23 Travel system does not move (only one side)...................................... 814 H-24 Upper structure does not swing................................................... 815 H-25 Swing acceleration or swing speed is low......................................... 817 H-26 Upper structure overruns remarkably when it stops swinging....................... 819 H-27 Large shock is made when upper structure stops swinging.......................... 820 H-28 Large sound is made when upper structure stops swinging.......................... 820 H-29 Hydraulic drift of swing is large................................................ 821 H-30 Attachment circuit is not changed................................................ 822 H-31 Oil flow in attachment circuit cannot be controlled.............................. 822 Troubleshooting of engine (S-mode)........................................................ 824 Method of using troubleshooting chart................................................. 827 S-1 Starting performance is poor...................................................... 831 S-2 Engine does not start............................................................. 833 S-3 Engine does not pick up smoothly.................................................. 837 S-4 Engine stops during operations.................................................... 838 S-5 Engine does not rotate smoothly................................................... 839 S-6 Engine lacks output (or lacks power).............................................. 840 S-7 Exhaust smoke is black (incomplete combustion).................................... 841 S-8 Oil consumption is excessive (or exhaust smoke is blue)........................... 842 S-9 Oil becomes contaminated quickly.................................................. 843 S-10 Fuel consumption is excessive.................................................... 844 S-11 Oil is in coolant (or coolant spurts back or coolant level goes down)............ 845 S-12 Oil pressure drops............................................................... 846 S-13 Oil level rises (Entry of coolant or fuel)....................................... 847 S-14 Coolant temperature becomes too high (overheating)............................... 849 S-15 Abnormal noise is made........................................................... 850 S-16 Vibration is excessive........................................................... 851 50 Disassembly and assembly................................................................... 0 General information on disassembly and assembly........................................... 854 How to read this manual............................................................... 855 Coating materials list................................................................ 857 Special tools list.................................................................... 860 Sketches of special tools............................................................. 864 Engine and cooling system................................................................. 870 Removal and installation of fuel supply pump assembly................................. 871 Removal and installation of fuel injector assembly.................................... 875 Removal and installation of engine front seal......................................... 881 Removal and installation of engine rear seal.......................................... 884 Removal and installation of cylinder head assembly.................................... 889 Removal and installation of radiator assembly......................................... 898 Removal and installation of hydraulic oil cooler assembly............................. 900 Removal and installation of aftercooler assembly...................................... 902 Removal and installation of engine and hydraulic oil pump assembly.................... 903 Power train............................................................................... 912 Removal and installation of travel motor and final drive assembly..................... 913 Disassembly and assembly of final drive assembly...................................... 914 Removal and installation of swing motor and swing machinery assembly.................. 922 Disassembly and assembly of swing machinery assembly.................................. 923 Removal and installation of swing circle assembly..................................... 930 Undercarriage and frame................................................................... 932 Disassembly and assembly of carrier roller assembly................................... 933 Disassembly and assembly of track roller assembly..................................... 935 Removal and installation of idler, recoil spring assembly............................. 936 Disassembly and assembly of idler assembly............................................ 937 Disassembly and assembly of recoil spring assembly.................................... 940 Removal and installation of sprocket.................................................. 942 Expansion and installation of track shoe assembly..................................... 943 Removal and installation of revolving frame assembly.................................. 945 Removal and installation of counterweight assembly.................................... 948 Hydraulic system.......................................................................... 950 Removal and installation of center swivel joint assembly.............................. 951 Disassembly and assembly of center swivel joint assembly.............................. 953 Removal and installation of hydraulic tank assembly................................... 954 Removal and installation of control valve assembly.................................... 956 Disassembly and assembly of control valve assembly.................................... 959 Removal and installation of hydraulic pump assembly................................... 963 Removal and installation of oil seal in hydraulic pump input shaft.................... 966 Disassembly and assembly of work equipment PPC valve assembly......................... 967 Disassembly and assembly of travel PPC valve assembly................................. 969 Disassembly and assembly of hydraulic cylinder assembly............................... 972 Work equipment............................................................................ 980 Removal and installation of work equipment assembly................................... 981 Cab and its attachments................................................................... 986 Removal and installation of operator’s cab............................................ 987 Removal and installation of operator’s cab glass (stuck glass)........................ 990 Removal and installation of front window assembly..................................... 999 Electrical system.........................................................................1006 Removal and installation of air conditioner unit assembly.............................1007 Removal and Installation of KOMTRAX terminal assembly.................................1009 Removal and installation of monitor assembly..........................................1010 Removal and installation of pump controller...........................................1011 90 Diagrams and drawings...................................................................... 0 Hydraulic diagrams and drawings...........................................................1014 Hydraulic circuit diagram.............................................................1016 Electrical diagrams and drawings..........................................................1019 Electrical circuit diagram............................................................1021 Connector list and stereogram.........................................................1026
KOMATSU PC400-7E0, PC400LC-7E0, PC450-7E0, PC450LC-7E0 EXCAVATOR SHOP MANUAL SEN03578-04 – DOWNLOAD:
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