Komatsu Wheel Loader WA420-1LC Shop Manual PDF

This Shop Manual provides detailed service and technical information, repair, and troubleshooting procedures for Komatsu Wheel Loader WA420-1LC models. Factory file contains the following data: structure and function, testing and adjusting, troubleshooting, disassembly, and assembly, maintenance standard, the engine section, repair information, safety rules, technical data, setting instruction, etc.

Also, in this tutorial, you can see many helpful schematic descriptions, pictures and recommendations, illustrations, diagrams, and much other additional information for Komatsu Wheel Loader WA420-1LC models. A careful and judicious service technician is the best guarantee against accidents. Precise observance of the most basic safety rule is normally sufficient to avoid many serious accidents.

An online text comes in PDF format with 777 pages for reading. We recommend using Adobe PDF Reader, to be sure all images/graphics will display correctly. If you have any questions about this Komatsu technic, please contact our manager. The electronic guide has a friendly and easy to use interface that supports English.

SERIAL NUMBERS A25001 and up
MACHINE MODEL WA420-1LC

Table of Contents:

10 ENGINE
12 TESTING AND ADJUSTING
13 DISASSEMBLY AND ASSEMBLY

20 POWER TRAIN
21 STRUCTURE AND FUNCTION
22 TESTING AND ADJUSTING
23 DISASSEMBLY AND ASSEMBLY
24 MAINTENANCE STANDARD

40 STEERING SYSTEM
41 STRUCTURE AND FUNCTION
42 TESTING AND ADJUSTING
43 DISASSEMBLY AND ASSEMBLY
44 MAINTENANCE STANDARD

50 BRAKE AND AIR SYSTEM
51 STRUCTURE AND FUNCTION
52 TESTING AND ADJUSTING
53 DISASSEMBLY AND ASSEMBLY
54 MAINTENANCE STANDARD

60 WORK EQUIPMENT SYSTEM
61 STRUCTURE AND FUNCTION
62 TESTING AND ADJUSTING
63 DISASSEMBLY AND ASSEMBLY
64 MAINTENANCE STANDARD

80 ELECTRIC AND ELECTRONIC SYSTEM
81 STRUCTURE AND FUNCTION
82 TESTING AND ADJUSTING
83 DISASSEMBLY AND ASSEMBLY

90 OTHERS
93 DISASSEMBLY AND ASSEMBLY
97 GEAR PUMP
99 METRIC CONVERSION TABLE