Komatsu HM400-5 Articulated Dump Truck Shop Manual SEN06519-06 – PDF Download

Description

File Details

• Manual Type: Shop Manual
• Brand: Komatsu
• Model: HM400-5
• Serial Numbers: 10001 and up
• Document Number: SEN06519-06
• Language: English
• File Format: PDF
• Page Count: Over 2,000 pages

Chapters Covered

This Komatsu HM400-5 shop manual is organized into the following major chapters. Each chapter is written for the technician working on the HM400-5 articulated dump truck and contains the procedures, values, and illustrations needed to complete the job correctly.

• 00 Index and Foreword
• 01 Specifications
• 10 Structure and Function
• 20 Standard Value Table
• 30 Testing and Adjusting
• 40 Troubleshooting
• 50 Disassembly and Assembly
• 60 Maintenance Standard
• 80 Appendix
• 90 Circuit Diagrams

00 Index and Foreword

Contains the abbreviation list, safety notices, fire prevention precautions, waste disposal instructions, exhaust gas regulation information, DEF handling procedures, hydraulic and electrical equipment precautions, connector disconnection and connection methods, tightening torque tables, and conversion tables. The foreword explains how to read the shop manual and use the standard value tables.

01 Specifications

Provides the complete specification drawing and specification tables for the HM400-5. Includes the weight table, fuel, coolant, and lubricants table, and the full machine specifications covering engine, power train, steering, suspension, tires, brakes, and hydraulic system.

10 Structure and Function

Covers the Urea SCR system layout and function, boot-up system, battery disconnect switch, engine system, automatic idle stop system, cooling system with radiator fan control, control system layout including retarder and hoist control, machine monitor system, rearview monitor system, KOMTRAX system, payload meter system, hydraulic system layout, power train system including transmission control and gear shift control, work equipment system, steering system, brake system, undercarriage and frame, suspension cylinders, oscillation hitch, and ROPS cab.

20 Standard Value Table

Contains the standard value tables for the engine and machine, including performance specifications, air intake and exhaust system values, main body measurements, fuel system values, lubrication system values, and electrical standard value tables. Also includes machine posture and procedure for measuring performance.

30 Testing and Adjusting

Provides the testing and adjusting procedures for the engine and cooling system, power train, steering system, brake system, hydraulic system, work equipment, cab and attachments, and electrical system. Includes engine speed testing, boost pressure testing, exhaust gas temperature testing, valve clearance adjustment, compression pressure testing, blowby pressure testing, engine oil pressure testing, EGR valve and VGT oil pressure testing, fuel pressure testing, fuel return rate and leakage testing, air bleeding procedures, SCR related function testing, torque converter stall speed testing, radiator and aftercooler fan speed testing, power train oil pressure testing, transmission speed sensor adjustment, steering circuit oil pressure testing, brake oil pressure testing, accumulator nitrogen gas pressure testing, brake performance testing, wheel brake disc wear testing, parking brake release procedures, suspension cylinder testing and adjustment, dump circuit oil pressure testing, dump body positioner sensor adjustment, dump body mount testing, cab tilt up procedures, and electrical equipment setting and adjustment.

40 Troubleshooting

Contains the failure codes table and troubleshooting procedures for the HM400-5. Includes general troubleshooting points, troubleshooting points for the Urea SCR system, sequence of events in troubleshooting, checks before troubleshooting, inspection procedures, electrical system troubleshooting preparation, connector lists and layouts, connector contact identification, T-branch box and adapter tables, fuse location table, KDPF cleaning and replacement precautions, machine monitor troubleshooting preparation, and the full failure codes table. Also includes troubleshooting by failure code for all listed codes, troubleshooting of electrical system (E-mode) covering engine start issues, preheating, machine monitor display problems, rearview monitor issues, fuel level gauge, seat belt caution, alarm buzzer, engine mode selector, AISS function, hoist lever, turn signal lamps, headlamps, and KOMTRAX system. Troubleshooting for hydraulic and mechanical systems (H-mode) covers machine start issues, travel problems, lockup release, gear shifting, travel speed and power, torque converter oil temperature and pressure, steering wheel operation, brake performance, dump body operation, and fan speed abnormalities. Troubleshooting of engine (S-mode) covers engine cranking, exhaust gas issues, misfiring, startability, engine pick-up, engine stops, rough running, power loss, KDPF clogging, oil consumption, fuel consumption, coolant issues, oil pressure drops, fuel and water mixing in oil, overheating, unusual noise, vibration, air bleeding, active regeneration issues, white smoke, AdBlue/DEF consumption, and unusual smell.

50 Disassembly and Assembly

Provides the disassembly and assembly procedures for the engine and cooling system, including removal and installation of the supply pump assembly, injector assembly, fuel doser assembly, cylinder head assembly, EGR valve assembly, EGR cooler assembly, starter assembly, alternator belt, radiator assembly, cooling fan and fan motor assembly, aftercooler assembly, engine assembly, engine front and rear oil seals, output shaft, AdBlue/DEF tank assembly, AdBlue/DEF tank sensor, KDPF assembly, and more. Includes coating materials list, special tools list, and tightening torques.

60 Maintenance Standard

Contains the maintenance standard values for the engine and machine, including the maintenance standard of the hoist cylinder and other components. Provides the criteria and remedies for disassembly and assembly.

80 Appendix

Covers the air conditioner system, including precautions for refrigerant, air conditioner component specifications, refrigeration cycle configuration and function, air conditioner unit, compressor, condenser, receiver drier, sensors, testing and troubleshooting procedures, circuit diagrams, and troubleshooting charts.

90 Circuit Diagrams

Contains the hydraulic circuit diagram, power train hydraulic circuit diagram, and electrical circuit diagrams for inside and outside the cab. Includes symbols used in the circuit diagrams and the full electrical circuit diagrams for the HM400-5.

Why This Komatsu HM400-5 Shop Manual Is Essential

This is the complete Komatsu HM400-5 Articulated Dump Truck Shop Manual (SEN06519-06), covering serial numbers 10001 and up. Whether you are performing routine maintenance, diagnosing a fault code, or overhauling major components, this manual gives you the exact procedures, specifications, and illustrations that Komatsu technicians use.

The HM400-5 is a 40-ton payload articulated dump truck powered by the Komatsu SAA6D140E-7 diesel engine. This manual covers every system on the machine: the Urea SCR emissions system, the full-automatic transmission, the hydraulic retarder and hoist control, the steering system, the brake system with accumulators, the suspension cylinders, and the ROPS cab. You get complete troubleshooting for every failure code the machine can display, with clear flow charts and component locations.

When you are working on a machine this complex, guessing is not an option. Torque values, pressure specifications, and adjustment procedures must be followed exactly. This HM400-5 shop manual gives you the standard value tables, testing and adjusting procedures, and disassembly and assembly instructions you need to get it right the first time. The troubleshooting section alone covers hundreds of failure codes with detailed diagnostic steps.

Delivered as an instant PDF download after payment, this manual can be viewed on any device, searched for the information you need, and printed for use in the workshop. No shipping, no waiting. The Komatsu HM400-5 service manual is the single most important tool for anyone responsible for maintaining or repairing this machine.

This Komatsu HM400-5 repair manual covers engine, transmission, hydraulics, electrical, brakes, steering, suspension, and all major systems in extensive detail. Whether you are a professional technician, a fleet maintenance manager, or an owner-operator, having the complete HM400-5 workshop manual ensures you have the correct information for every job.

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Instant PDF Delivery – No Shipping Required

After payment, you receive immediate access to the complete Komatsu HM400-5 shop manual PDF. There is no physical book to ship, no waiting for delivery, and no risk of a damaged manual arriving in the mail. The file works on any device – computer, tablet, or smartphone – and can be printed in full or in sections for use in the workshop. Keep it on your shop computer, your laptop, or your phone for instant reference on the job site.

This Komatsu HM400-5 articulated dump truck shop manual is the definitive resource for maintaining and repairing the HM400-5. With over 2,000 pages of technical information, it covers every system, every failure code, and every procedure you will need. Do not attempt a repair without it.