Trusted Business
Verified & Licensed
Virus Free Files
100% Safe Downloads
Secure Payment
SSL Protected
Instant Delivery
Available Immediately
Sale!
KOMATSU PC300-7E0 PC300LC-7E0 PC350-7E0 PC350LC-7E0 HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SEN03537-03) – PDF DOWNLOAD
Original price was: $67.95.$28.95Current price is: $28.95.
- KOMATSU PC300-7E0 PC300LC-7E0 PC350-7E0 PC350LC-7E0 HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL
- PUBLICATION NUMBER:SEN03537-03
- SERIAL NUMBERS:
PC300,300LC- 50001-50216
PC300,300LC- 55001 and up
PC350,350LC- 30001-30093
PC350,350LC- 55001 and up
Instant PDF Download
Available immediately
Save to Your Device
Download & keep forever
Antivirus Scanned
100% virus-free
Trusted Worldwide
175,000+ customers
Description
KOMATSU PC300-7E0 PC300LC-7E0 PC350-7E0 PC350LC-7E0 HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SEN03537-03)
KOMATSU PC300-7E0 PC300LC-7E0 PC350-7E0 PC350LC-7E0 HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SEN03537-03) – PDF DOWNLOAD:
IMAGE PREVIEW:
DESCRIPTION:
KOMATSU PC300-7E0 PC300LC-7E0 PC350-7E0 PC350LC-7E0 HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SEN03537-03)
- 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 explains the shop manuals list, table of contents, safety, and basic information. - 01. Specification
This section explains the specifications of the machine. - 10. Structure, function and maintenance standard
This section explains the structure, function, and maintenance standard values of each component. The structure and function sub-section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting. The maintenance standard sub-section explains the criteria and remedies for disassembly and service. - 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 instruments and measuring methods for testing and adjusting, and method of adjusting each part. The standard values and judgement criteria for testing and adjusting are explained in Testing and adjusting. - 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. - 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 reproducing, repairing, and replacing parts
TABLE OF CONTENTS:
KOMATSU PC300-7E0 PC300LC-7E0 PC350-7E0 PC350LC-7E0 HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SEN03537-03)
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....................................................................... 59 Weight table......................................................................... 65 Table of fuel, coolant and lubricants................................................ 67 10 Structure, function and maintenance standard.............................................. 0 Engine and cooling system................................................................ 70 Engine related parts................................................................. 71 Radiator, oil cooler and aftercooler................................................. 72 Power train.............................................................................. 74 Power train.......................................................................... 75 Final drive.......................................................................... 77 Sprocket............................................................................. 79 Swing machinery...................................................................... 81 Swing circle......................................................................... 83 Undercarriage and frame.................................................................. 86 Track frame and recoil spring........................................................ 87 Idler................................................................................ 89 Carrier roller....................................................................... 91 Track roller......................................................................... 92 Track shoe........................................................................... 93 Hydraulic system, Part 1................................................................. 98 Hydraulic equipment layout drawing................................................... 99 Hydraulic tank and filter............................................................101 Hydraulic pump.......................................................................103 Hydraulic system, Part 2.................................................................128 Control valve........................................................................129 CLSS.................................................................................141 Functions and operation by valve.....................................................145 Merge-divider valve..................................................................160 Attachment circuit selector valve....................................................185 Hydraulic drift prevention valve.....................................................187 Hydraulic system, Part 3.................................................................194 Valve control........................................................................195 PPC valve............................................................................196 Solenoid valve.......................................................................212 PPC accumulator......................................................................214 Return oil filter....................................................................215 Center swivel joint..................................................................216 Travel motor.........................................................................217 Swing motor..........................................................................229 Hydraulic cylinder...................................................................238 Work equipment...........................................................................242 Work equipment.......................................................................243 Dimensions of components.............................................................245 Cab and its attachments..................................................................250 Air conditioner piping...............................................................251 Electrical system........................................................................254 Engine control.......................................................................255 Electronic control system............................................................264 Monitor system.......................................................................289 Sensor...............................................................................307 KOMTRAX system.......................................................................310 20 Standard value table...................................................................... 0 Standard service value table.............................................................314 Standard value table for engine related parts........................................315 Standard value table for chassis related parts.......................................316 30 Testing and adjusting..................................................................... 0 Testing and adjusting, Part 1............................................................328 Tools for testing, adjusting and troubleshooting.....................................330 Sketches of special tools............................................................334 Measuring engine speed...............................................................335 Measuring air boost pressure.........................................................336 Measuring exhaust gas color..........................................................337 Adjusting valve clearance............................................................339 Measuring compression pressure.......................................................341 Measuring blow-by pressure...........................................................345 Measuring engine oil pressure........................................................346 Measuring fuel pressure..............................................................347 Handling during cylinder cut-out operation...........................................352 Handling during no injection cranking operation......................................352 Measuring fuel return rate and leakage...............................................353 Bleeding air from fuel circuit.......................................................355 Checking fuel circuit for leakage....................................................356 Testing and adjusting air compressor belt tension....................................357 Replacement of fan belt..............................................................358 Replacement of alternator belt.......................................................359 Measuring clearance in swing circle bearings.........................................360 Testing and adjusting track shoe tension.............................................361 Testing and adjusting oil pressure in work equipment, swing and travel circuit.......362 Testing and adjusting control circuit oil pressure...................................366 Testing and adjusting pump PC control circuit oil pressure...........................367 Testing and adjusting pump LS control circuit oil pressure...........................370 Measuring solenoid valve output pressure.............................................375 Measuring PPC valve output pressure..................................................379 Adjusting play of work equipment and swing PPC valves................................380 Inspecting locations of hydraulic drift of work equipment............................381 Releasing remaining pressure in hydraulic circuit....................................383 Measuring oil leakage amount.........................................................384 Bleeding air from various parts......................................................386 Testing and adjusting, Part 2............................................................390 Special functions of machine monitor.................................................391 Testing and adjusting, Part 3............................................................420 Procedure for turning on KOMTRAX terminal............................................421 Indication by KOMTRAX terminal lamps.................................................424 Handling voltage circuit of engine controller........................................427 Preparation work for troubleshooting of electrical system............................428 Procedure for testing diodes.........................................................432 Pm clinic service....................................................................433 40 Troubleshooting........................................................................... 0 Failure code table and fuse locations....................................................440 Failure codes table..................................................................441 Before carrying out troubleshooting when failure code is displayed...................445 General information on troubleshooting...................................................450 Points to remember when troubleshooting..............................................451 Sequence of events in troubleshooting................................................452 Checks before troubleshooting........................................................453 Classification and troubleshooting steps.............................................454 Information in troubleshooting table.................................................455 Connection table for connector pin numbers...........................................460 T- branch box and T- branch adapter table............................................496 Troubleshooting by failure code (Display of code), Part 1................................500 Failure code [AA10NX] Air cleaner Clogging...........................................503 Failure code [AB00KE] Charge Voltage Low.............................................505 Failure code [B@BAZG] Eng Oil Press. Low.............................................507 Failure code [B@BAZK] Eng Oil Level Low..............................................509 Failure code [B@BCNS] Eng. Water Overheat............................................511 Failure code [B@BCZK] Eng Water Level Low............................................513 Failure code [B@HANS] Hydr Oil Overheat..............................................515 Failure code [CA111] EMC Critical Internal Failure...................................517 Failure code [CA115] Eng Ne and Bkup Speed Sens Error................................518 Failure code [CA122] Chg Air Press Sensor High Error.................................519 Failure code [CA123] Chg Air Press Sensor Low Error..................................521 Failure code [CA131] Throttle Sensor High Error......................................523 Failure code [CA132] Throttle Sensor Low Error.......................................525 Failure code [CA144] Coolant Temp Sens High Error....................................527 Failure code [CA145] Coolant Temp Sens Low Error.....................................529 Failure code [CA153] Chg Air Temp Sensor High Error..................................531 Failure code [CA154] Chg Air Temp Sensor Low Error...................................533 Failure code [CA155] Chg Air Temp High Speed Derate..................................535 Failure code [CA187] Sens Supply 2 Volt Low Error....................................537 Failure code [CA221] Ambient Press Sens High Error...................................539 Failure code [CA222] Ambient Press Sens Low Error....................................541 Failure code [CA227] Sens Supply 2 Volt High Error...................................543 Failure code [CA234] Eng Overspeed...................................................544 Failure code [CA238] Ne Speed Sens Supply Volt Error.................................545 Failure code [CA271] IMV/PCV1 Short Error............................................546 Failure code [CA272] IMV/PCV1 Open Error.............................................547 Failure code [CA322] Inj #1 (L/B#1) Open/Short Error.................................549 Failure code [CA323] Inj #5 (L/B#5) Open/Short Error.................................551 Failure code [CA324] Inj #3 (L/B#3) Open/Short Error.................................553 Failure code [CA325] Inj #6 (L/B#6) Open/Short Error.................................555 Failure code [CA331] Inj #2 (L/B#2) Open/Short Error.................................557 Failure code [CA332] Inj #4 (L/B#4) Open/Short Error.................................559 Troubleshooting by failure code (Display of code), Part 2................................562 Failure code [CA342] Calibration Code Incompatibility................................564 Failure code [CA351] Injectors Drive Circuit Error...................................565 Failure code [CA352] Sens Supply 1 Volt Low Error....................................567 Failure code [CA386] Sens Supply 1 Volt High Error...................................569 Failure code [CA428] Water in Fuel Sensor High Error.................................571 Failure code [CA429] Water in Fuel Sensor Low Error..................................573 Failure code [CA435] Eng. Oil Press Sw Error.........................................575 Failure code [CA441] Battery Voltage Low Error.......................................577 Failure code [CA442] Battery Voltage High Error......................................579 Failure code [CA449] Rail Press Very High Error......................................581 Failure code [CA451] Rail Press Sensor High Error....................................585 Failure code [CA452] Rail Press Sensor Low Error.....................................587 Failure code [CA553] Rail Press High Error...........................................589 Failure code [CA559] Rail Press Low Error............................................590 Failure code [CA689] Eng Ne Speed Sensor Error.......................................592 Failure code [CA731] Eng Bkup Speed Sens Phase Error.................................594 Failure code [CA757] All Persistent Data Lost Error..................................595 Failure code [CA778] Eng Bkup Speed Sensor Error.....................................597 Failure code [CA1633] KOMNET Datalink Timeout Error..................................599 Failure code [CA2185] Throt Sens Sup Volt High Error.................................601 Failure code [CA2186] Throt Sens Sup Volt Low Error..................................602 Failure code [CA2249] Rail Press Very Low Error......................................603 Failure code [CA2265] Fuel Feed Pump Open Error......................................605 Failure code [CA2266] Fuel Feed Pump Short Error.....................................607 Failure code [CA2311] IMV Solenoid Error.............................................609 Failure code [CA2555] Grid Htr Relay Volt Low Error..................................611 Failure code [CA2556] Grid Htr Relay Volt High Error.................................613 Failure code [D110KB] Battery Relay Drive Short Circuit..............................615 Failure code [D196KA] Service Return Relay Disc......................................617 Failure code [D196KB] Service Return Relay S/C.......................................619 Failure code [DA25KP] Press. Sensor Power Abnormality................................621 Failure code [DA2RMC] Pump Comm. Abnormality.........................................623 Failure code [DA2SKQ] Model Selection Abnormality....................................625 Troubleshooting by failure code (Display of code), Part 3................................628 Failure code [DAFRMC] Monitor Comm. Abnormality......................................631 Failure code [DHPAMA] F Pump Press Sensor Abnormality................................633 Failure code [DGH2KB] Hydr Oil Sensor Short Circuit..................................635 Failure code [DHPBMA] R Pump Press Sensor Abnormality................................637 Failure code [DHS3MA] Arm Curl PPC Press Sensor Abnormality..........................639 Failure code [DHS4MA] Bucket Curl PPC Press Sensor Abnormality.......................641 Failure code [DW43KA] Travel Speed Sol. Open Circuit.................................643 Failure code [DW43KB] Travel Speed Sol. Short Circuit................................645 Failure code [DW45KA] Swing Brake Sol. Open Circuit..................................647 Failure code [DW45KB] Swing Brake Sol. Short Circuit.................................651 Failure code [DW91KA] Travel Junction Sol. Open Circuit..............................653 Failure code [DW91KB] Travel Junction Sol. Short Circuit.............................655 Failure code [DWJ0KA] Merge-divider Sol. Open Circuit................................657 Failure code [DWJ0KB] Merge-divider Sol. Short Circuit...............................659 Failure code [DWK0KA] 2-stage Relief Sol. Open Circuit...............................661 Failure code [DWK0KB] 2-stage Relief Sol. Short Circuit..............................663 Failure code [DXA0KA] PC-EPC Sol. Open Circuit.......................................665 Failure code [DXA0KB] PC-EPC Sol. Short Circuit......................................667 Failure code [DXE0KA] LS-EPC Sol. Open Circuit.......................................669 Failure code [DXE0KB] LS-EPC Sol. Short Circuit......................................671 Failure code [DXE4KA] Service Current EPC Open Circuit...............................673 Failure code [DXE4KB] Service Current EPC Short Circuit..............................674 Failure code [DY20KA] Wiper Working Abnormality......................................675 Failure code [DY20MA] Wiper Parking Abnormality......................................677 Failure code [DY2CKB] Washer Drive Short Circuit.....................................679 Failure code [DY2DKB] Wiper Drive (Fwd) Short Circuit................................681 Failure code [DY2EKB] Wiper Drive (Rev) Short Circuit................................683 Troubleshooting of electrical system (E-mode)............................................686 Before carrying out troubleshooting of electrical system.............................689 Information contained in troubleshooting table.......................................691 E-1 Engine does not start............................................................692 E-2 Auto-decelerator does not operate................................................695 E-3 Automatic warming-up system does not operate.....................................697 E-4 Preheater does not operate.......................................................699 E-5 All work equipment, swing, and travel mechanism do not move......................701 E-6 Power maximizing function does not operate.......................................703 E-7 Machine monitor does not display at all..........................................705 E-8 Machine monitor does not display some items......................................707 E-9 Contents of display by machine monitor are different from applicable machine.....707 E-10 Fuel level monitor was lighted in red while engine running......................708 E-11 Engine coolant temperature gauge does not indicate normally.....................709 E-12 Hydraulic oil temperature gauge does not indicate normally......................711 E-13 Fuel level gauge does not indicate normally.....................................712 E-14 Swing lock monitor does not indicate normally...................................713 E-15 When monitor switch is operated, monitor displays nothing.......................715 E-16 Windshield wiper and window washer do not operate...............................717 E-17 Machine push-up function does not operate normally..............................721 E-18 Monitoring function fails to display “boom raise” normally......................723 E-19 Monitoring function fails to display “boom lower” normally......................725 E-20 Monitoring function fails to display “arm IN” normally..........................727 E-21 Monitoring function fails to display “arm OUT” normally.........................729 E-22 Monitoring function fails to display “bucket CURL” normally.....................731 E-23 Monitoring function fails to display “bucket DUMP” normally.....................733 E-24 Monitoring function fails to display “swing” normally...........................735 E-25 Monitoring function fails to display “travel” normally..........................737 E-26 Monitoring function fails to display “travel differential pressure” normally....739 E-27 Monitoring function fails to display “service” normally.........................741 E-28 KOMTRAX system does not operate normally........................................743 E-29 Air conditioner does not operate................................................745 E-30 Travel alarm does not sound or does not stop sounding...........................747 E-31 Horn does not sound.............................................................749 Troubleshooting of hydraulic and mechanical system (H-mode)..............................752 System chart for hydraulic and mechanical system.....................................755 Information contained in troubleshooting table.......................................757 H-1 All work equipment lack power, or travel and swing speeds are slow...............759 H-2 Engine speed sharply drops or engine stalls......................................761 H-3 No work equipment, swing or travel move..........................................762 H-4 Abnormal noise is heard from around hydraulic pump...............................762 H-5 Auto-decelerator does not work...................................................763 H-6 Fine control mode does not function or responds slow.............................763 H-7 Boom moves slowly or lacks power.................................................764 H-8 Arm moves slowly or lacks power..................................................765 H-9 Bucket moves slowly or lacks power...............................................766 H-10 Work equipment does not move in its single operation............................766 H-11 Work equipment has a bit too fast hydraulic drift...............................767 H-12 Work equipment has big time lag.................................................769 H-13 Other work equipment moves when relieving single circuit........................769 H-14 Power max. switch does not operate..............................................770 H-15 Machine push-up function does not operate.......................................770 H-16 In compound operation, work equipment with larger load moves slowly.............771 H-17 In swing + boom RAISE operation, boom moves slowly..............................771 H-18 In swing + travel operation, travel speed drops sharply.........................771 H-19 Machine swerves in travel.......................................................772 H-20 Machine travels slowly..........................................................773 H-21 Machine cannot be easily steered or lacks power.................................774 H-22 Travel speed does not shift, or it is too slow or fast..........................775 H-23 Track shoe does not turn (on one side only).....................................776 H-24 Machine does not swing..........................................................777 H-25 Swing acceleration is poor, or swing speed is slow..............................779 H-26 Excessive overrun when stopping swing...........................................781 H-27 There is big shock when stopping swing..........................................782 H-28 Large sound is made when upper structure stops swinging.........................782 H-29 Swing hydraulic drift is too big................................................783 Troubleshooting of engine (S-mode).......................................................786 Method of using troubleshooting chart................................................788 S-1 Starting performance is poor.....................................................791 S-2 Engine does not start............................................................792 S-3 Engine does not pick up smoothly.................................................795 S-4 Engine stops during operations...................................................796 S-5 Engine does not rotate smoothly..................................................797 S-6 Engine lacks output (or lacks power).............................................798 S-7 Exhaust smoke is black (incomplete combustion)...................................799 S-8 Oil consumption is excessive (or exhaust smoke is blue)..........................800 S-9 Oil becomes contaminated quickly.................................................801 S-10 Fuel consumption is excessive...................................................802 S-11 Oil is in coolant (or coolant spurts back or coolant level goes down)...........803 S-12 Oil pressure drops..............................................................804 S-13 Oil level rises (Entry of coolant or fuel)......................................805 S-14 Coolant temperature becomes too high (overheating)..............................806 S-15 Abnormal noise is made..........................................................807 S-16 Vibration is excessive..........................................................808 50 Disassembly and assembly.................................................................. 0 General information on disassembly and assembly..........................................810 How to read this manual..............................................................811 Coating materials list...............................................................813 Special tools list...................................................................816 Sketches of special tools............................................................820 Engine and cooling system................................................................824 Removal and installation of fuel supply pump assembly................................825 Removal and installation of engine front seal........................................828 Removal and installation of engine rear seal.........................................831 Removal and installation of cylinder head assembly...................................836 Removal and installation of radiator assembly........................................849 Removal and installation of hydraulic oil cooler assembly............................851 Removal and installation of aftercooler assembly.....................................853 Removal and installation of engine and hydraulic pump assembly.......................854 Power train..............................................................................860 Removal and installation of final drive assembly.....................................861 Disassembly and assembly of final drive assembly.....................................862 Removal and installation of swing motor and swing machinery assembly.................870 Disassembly and assembly of swing motor and swing machinery assembly.................871 Removal and installation of swing circle assembly....................................878 Undercarriage and frame..................................................................880 Disassembly and assembly of carrier roller...........................................881 Disassembly and assembly of track roller assembly....................................882 Disassembly and assembly of idler assembly...........................................883 Disassembly and assembly of recoil spring............................................886 Removal and installation of sprocket.................................................888 Expansion and installation of track shoe assembly....................................889 Removal and installation of revolving frame assembly.................................890 Removal and installation of counterweight assembly...................................892 Hydraulic system.........................................................................894 Removal and installation of center swivel joint assembly.............................895 Disassembly and assembly of center swivel joint assembly.............................897 Removal and installation of hydraulic tank assembly..................................898 Removal and installation of control valve assembly...................................900 Disassembly and assembly of control valve assembly...................................903 Removal and installation of hydraulic pump assembly..................................905 Removal and installation of oil seal in hydraulic pump input shaft...................907 Disassembly and assembly of work equipment PPC valve assembly........................908 Disassembly and assembly of travel PPC valve assembly................................910 Disassembly and assembly of hydraulic cylinder assembly..............................913 Work equipment...........................................................................920 Removal and installation of work equipment assembly..................................921 Cab and its attachments..................................................................926 Removal and installation of operator's cab assembly..................................927 Removal and installation of operator’s cab glass (stuck glass).......................930 Removal and installation of front window assembly....................................939 Electrical system........................................................................946 Removal and installation of assembly.................................................947 Removal and installation of machine monitor..........................................949 Removal and installation of pump controller..........................................949 Removal and installation of KOMTRAX terminal.........................................950 Removal and installation of engine controller........................................950 90 Diagrams and drawings..................................................................... 0 Hydraulic diagrams and drawings..........................................................952 Hydraulic circuit diagram............................................................954 Electrical diagrams and drawings.........................................................957 Electrical circuit diagram...........................................................959 Connector list and stereogram........................................................963
PLEASE NOTE:
⦁ This is the SAME manual used by the dealers to troubleshoot any faults in your vehicle. This can be yours in 2 minutes after the payment is made.
⦁ Contact us at [email protected] should you have any queries before your purchase or that you need any other service / repair / parts operators manual.
1 review for KOMATSU PC300-7E0 PC300LC-7E0 PC350-7E0 PC350LC-7E0 HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (SEN03537-03) – PDF DOWNLOAD
Add a review
Mccoy Amari –