Komatsu ecot3 WA500-6 Install guide

WHEEL LOADER
SEN05647-00
WA500 -6
SERIAL NUMBERS 55739 and up
Stone Handling Spec.

WA500-6
WHEEL LOADER
1SHOP MANUAL
WA500-6
Machine model Serial number
WA500-6 55739 and up
00 Index and foreword 1
00-1

Table of contents
2
WA500-6
Table of contents 1
00 Index and foreword
Table of contents...............................................................................................................................00- 2
Table of contents...................................................................................................................... 00- 2
Foreword...........................................................................................................................................00- 3
Before reading this manual...................................................................................................... 00- 3
10 Structure, function and maintenance standard
Hydraulic system...............................................................................................................................10- 4
Control valve............................................................................................................................ 10- 4
20 Standard value table
Standard service value table.............................................................................................................20- 3
Standard service value table for chassis ................................................................................. 20- 3
90 Diagrams and drawings
90 Diagrams and drawings ...............................................................................................................90- 3
Work equipment hydraulic circuit diagram ............................................................................... 90- 3
00-2

Foreword
Before reading this manual
WA500-6
3
Foreword 1
Before reading this manual 1
qThis shop manual describes only the different part from the standard machine (WA500-6: S/N 55001
and up).
qFor the component that is not described in this manual, refer the shop manual for the standard machine
(WA500-6: S/N 55001 and up).
00-3

Foreword
Before reading this manual
4
WA500-600-4

WA500-6
WHEEL LOADER
1SHOP MANUAL
WA500-6
Machine model Serial number
WA500-6 55739 and up
10 Structure, function and
maintenance standard 1
10-1

Contents
2
WA500-6
Contents 1
10 Structure, function and maintenance standard
Hydraulic system.................................................................................................................................. 10- 4
Control valve .................................................................................................................................... 10- 4
10-2

Contents
WA500-6
3
10-3

Hydraulic system
Control valve
4
WA500-6
Hydraulic system 1
Control valve 1
Outline
A1: To bucket cylinder bottom
A2: To lift arm cylinder bottom
A3: To lift arm cylinder bottom
B1: To bucket cylinder head
B2: To lift arm cylinder head
B3: To bucket cylinder head
CP: Pressure sensor installation port
P1: From front work equipment hydraulic pump
P2: From rear work equipment hydraulic pump
PA1: From bucket dump controller
PA2: From lift arm raise controller
PB1: From bucket tilt controller
PB2: From lift arm lower controller
PLS: To work equipment hydraulic pump LS port
PP: From pilot pump
PPS: To work equipment hydraulic pump
T: To tank
TS: To tank
1. Bucket valve
2. Lift arm valve
3. Lift arm Hi and bucket Hi valves
4. Cover 1
5. Cover 2
6. Lift arm suction valve
10-4

Hydraulic system
Control valve
WA500-6
5
Outside view
10-5