Komatsu HM400-2 Dump Truck Service Manual Workshop Guide

Manual Included: Shop Manual: 1449 pages & 1494 pages Operating and Maintenance Manual: 340 pages Specifications: Brand: Komatsu Model: HM400-2 Serial Number: 2001 and up Type: Dump Truck Manuals: Service Manual and Operating and Maintenance Manual Publication Number: SEN00239-17, CEBM007901 and TEN00128-04 Language: English Format: PDF Description Table of Contents 00 Index and foreword 01 Specification 10 Structure, function and maintenance standard 20 Standard value table 30 Testing and adjusting 40 Troubleshooting 50 Disassembly and assembly 90 Diagrams and drawings GENERAL This section lists the general machine dimensions, performance specifications, component weights, and fuel, coolant and lubricant specification charts. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD This 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. TESTING, ADJUSTING AND TROUBLESHOOTING KOMATSU Dump Truck HM400-2 This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. Troubleshooting charts correlating Problems to Causes are also mention in this section. DISASSEMBLY AND ASSEMBLY This section explains the order to be followed when removing, installing, disassembling or assembling each component, as well as precautions to be taken for these operations. Low-pressure circuit: Feed pump – Fuel filter – Fuel supply pump High pressure circuit: Fuel supply pump – Common rail – Fuel injector a The pressure in both low-pressure circuit and high-pressure circuit lowers to a safety level automatically 30 seconds after the engine is stopped. Before the fuel circuit is tested and its parts are removed, the residual pressure in the fuel circuit must be released completely. Accordingly observe the following. When testing the fuel line or removing or installing equipment of fuel system, wait for at least 30 seconds after the engine is stopped to release the remaining pressure in the fuel circuit before starting operation. (There is still pressure remaining in the circuit, so do not start operations immediately after the engine is stopped.)