Komatsu D375A-6R Bulldozer Shop Manual SEN05214-01 – Complete PDF Service, Repair & Troubleshooting Guide for Serial 65001 and Up

Description

Komatsu D375A-6R Shop Manual – SEN05214-01

This is the complete Komatsu D375A-6R shop manual, document number SEN05214-01, covering bulldozers from serial number 65001 and up. It is the same comprehensive workshop reference used by professional diesel technicians for major repairs, component overhauls, system diagnostics and scheduled maintenance on the D375A-6R. Every section is written around the actual machine, with factory procedures, torque values, wear limits, testing criteria and illustrated disassembly sequences.

File Details

• Manual type: Shop Manual (Service, Repair & Troubleshooting)
• Brand: Komatsu
• Model: D375A-6R
• Serial number coverage: 65001 and up
• Document number: SEN05214-01
• Edition / Revision: 1st revision (2010/3)
• Language: English
• File format: PDF
• Page count: 1,766 pages

Chapters Covered

• 00 – Index and Foreword
• 01 – Specification
• 10 – Structure and Function
• 20 – Standard Value Table
• 30 – Testing and Adjusting
• 40 – Troubleshooting
• 50 – Disassembly and Assembly
• 60 – Maintenance Standard
• 80 – Appendix (Air Conditioner)
• 90 – Diagrams and Drawings

00 – Index and Foreword

Safety notices, how to read the shop manual, handling of electrical and hydraulic components, connector handling for engines, how to read electric wire codes, standard tightening torque tables, abbreviation lists and conversion tables. This section establishes the conventions used throughout the D375A-6R manual.

01 – Specification

Machine specification drawings, full specifications, weight tables, and the table of fuel, coolant and lubricants. Covers the D375A-6R with semi-U and full-U dozer configurations and giant or multi-shank ripper arrangements.

10 – Structure and Function

Detailed system-by-system explanation of how the machine works: engine and cooling system, cooling fan pump and motor, power train (damper, universal joint, torque converter, PTO, torque converter control valve, lockup clutch ECMV, stator clutch ECMV, scavenging pump, transmission, transmission ECMV, lubrication relief valve), steering and brake control, final drive, undercarriage and frame, hydraulic system (work equipment pump, PPC valves, control valve, self-pressure reducing valve, quick drop valve, pin puller), work equipment, cab, and the complete electrical system including engine control, CRI engine control, monitor system, machine monitor, palm command control system, sensors, VHMS and ORBCOMM.

20 – Standard Value Table

Standard service value tables for the engine and for the machine. Includes rotating speeds, boost pressure, exhaust temperature, compression pressure, blow-by pressure, engine oil pressure, valve clearance, alternator belt tension, work equipment oil pressures, control lever and pedal strokes and operating efforts, fan speeds, power train oil pressures, travel speeds, work equipment speeds and hydraulic drift limits.

30 – Testing and Adjusting

Tools and diagnosis equipment, then step-by-step testing and adjusting procedures: engine speed, intake air pressure, exhaust temperature and gas colour, valve clearance, compression pressure, blow-by pressure, engine oil pressure, fuel system handling, fuel pressure, reduced cylinder mode, no-injection cranking, pressure limiter and injector return, air bleeding, fuel circuit leakage, alternator and A/C belts, fan speed and fan circuit pressure, fuel control dial and decelerator pedal, power train oil pressures, transmission output speed sensor, brake performance, brake pedal and parking brake lever adjustment, PCCS lever console position, emergency escape methods, undercarriage checks, work equipment oil pressures, PPC valve output, ripper pin-puller solenoid output, hydraulic drift diagnosis, cylinder leakage, air bleeding, work equipment lock lever, blade adjustment, operator’s cab testing, and special functions of the machine monitor (EMMS).

40 – Troubleshooting

General troubleshooting information, checks before troubleshooting, classification and procedures, failure code tables, connector pin tables, T-branch box and adapter tables, connector lists and layouts, fuse locations and fuse box layouts. Failure code troubleshooting covers the power train, engine, electrical and hydraulic systems with hundreds of individual codes. Additional sections cover electrical system troubleshooting (E-mode), hydraulic and mechanical system troubleshooting (H-mode) and engine troubleshooting (S-mode).

50 – Disassembly and Assembly

General information, coating materials list, special tool list and sketches. Removal and installation procedures for the fuel supply pump, fuel injectors, cylinder head, radiator guard, cooling assembly, radiator, hydraulic oil cooler, aftercooler, engine assembly, engine hood, engine front and rear seals, fan drive, fan motor and fuel tank. Power train coverage includes damper, power train unit, PTO, torque converter, TORQFLOW transmission, steering case, power train pump and lubrication pump, scavenging pump and final drive. Undercarriage and frame coverage includes track frame, idler, recoil spring, track roller, carrier roller, bogie, first bogie, track shoe separation and connection, track shoe overall disassembly and assembly, one-link field assembly, master link, pivot shaft, equalizer bar, equalizer bar bushing and segment tooth. Hydraulic system, work equipment, cab, and electrical system removal and installation are also covered.

60 – Maintenance Standard

Maintenance standard values and judgement criteria for the engine mount, cooling fan pump and motor, power train unit, damper and universal joint, torque converter and PTO, main relief valve and torque converter relief valve, lockup clutch ECMV and stator clutch ECMV, scavenging pump, transmission control, transmission, transmission lubricating oil relief valve, power train and lubrication pump, transfer, bevel gear shaft and steering unit, steering control valve, steering clutch ECMV and steering brake ECMV, parking brake valve, final drive, sprocket, track frame, idler cushion, idler, track roller, carrier roller, track roller bogie, track shoe, main frame, suspension, PPC valve, hydraulic cylinder, quick drop valve, work equipment pump, control valve, self-pressure reducing valve, cylinder stay, blade, cutting edge and end bit, and ripper.

80 – Appendix (Air Conditioner)

Precautions for refrigerant, air conditioner components, refrigeration cycle configuration and function, outline of the refrigeration cycle, air conditioner unit, blower unit, FRESH/RECIRC air changeover damper, compressor, condenser, receiver drier, air conditioner control panel, testing and troubleshooting procedures, circuit diagram and connector pin arrangement, system diagram, parts and connector layout, temperature control testing, FRESH/RECIRC changeover testing, relay testing, troubleshooting charts, gauge pressure troubleshooting, service tool connection, disconnecting and connecting precautions, and compressor oil handling.

90 – Diagrams and Drawings

Symbols used in hydraulic circuit diagrams, power train hydraulic circuit diagram, hydraulic circuit diagram (dual tilt and single tilt specifications), symbols used in electrical circuit diagrams, and the complete electrical circuit diagram in 14 sections.

Why This Komatsu D375A-6R Shop Manual Matters

Big dozers like the D375A-6R do not forgive guesswork. A torque value taken from a generic table, a wear limit assumed rather than measured, or a clutch pack assembled without the correct clearance can turn a routine repair into a component failure. This Komatsu D375A-6R shop manual gives you the actual numbers, the factory sequence and the illustrations to do the job the way it was designed to be done. Every specification in this PDF is specific to the D375A-6R from serial 65001 and up — engine SAA6D170E-5, the TORQFLOW transmission, the steering clutch and brake packs, the hydraulic system, the undercarriage, and the electronic control systems including the machine monitor, VHMS and ORBCOMM.

Whether you are resealing a blade lift cylinder, diagnosing a transmission clutch fill code, adjusting track tension, checking fan circuit pressure, overhauling a final drive, or tracing an electrical fault through the ECMV circuits, the relevant procedure is in here. The troubleshooting section alone covers hundreds of failure codes across the power train, engine, electrical and hydraulic systems, each with the cause, the measuring location and the criteria to judge it.

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Instant PDF Delivery – No Shipping, No Waiting

This Komatsu D375A-6R service manual is delivered as an instant PDF download. No shipping, no waiting, no physical binder to lose. Open it on a laptop in the workshop, a tablet on the machine, or a phone at the parts counter. Print only the pages you need for the job at hand. The complete 1,766-page document stays with you on any device you choose, so the specifications, procedures and diagrams are always within reach when the machine is down and the job needs to move forward.