This document provides specifications and layout diagrams for a wheel loader. It includes: 1. Specifications such as operating weight, tipping load, engine details, and dimensions. 2. Layout diagrams showing the location of major components such as the bucket, lights, engine, radiator, exhaust filter, and hydraulic components. 3. Details of electrical component locations in and around the cab, including switches, controllers, and sensors. The document provides technical information on the configuration and specifications of a wheel loader to support maintenance and repair work. Diagrams identify key parts and their locations on the machine.

1. ©2014 KCM Corporation. All rights reserved. Printed in Japan (K)
( オセアニア用 )
93211-00660
April 2014
SHOP MANUAL
WHEEL LOADER
85Z7
General Information
Function & Structure
Powered by ISUZU 6HK1 ENGINE
Serial No. 85J1-8001 and up
General
Information
85Z7
SHOP
MANUAL
93211-00660
Function
&
Structure

2. 93211-00660
April 2014
85Z7 OCE
SHOP MANUAL (Function & Structure)
INTRODUCTION........................................................................................................................... IN-01~02
SECTION 1 GENERAL
Group 1 Specifications .............................................................................................................T1-1
Group 2 Component Layout.....................................................................................................T1-2
Group 3 Component Specifications .........................................................................................T1-3
SECTION 2 SYSTEM
Group 1 Controller....................................................................................................................T2-1
Group 2 Control System...........................................................................................................T2-2
Group 3 ECM System ..............................................................................................................T2-3
Group 4 Hydraulic System .......................................................................................................T2-4
Group 5 Electrical System........................................................................................................T2-5
SECTION 3 COMPONENT OPERATION
Group 1 Pump Device..............................................................................................................T3-1
Group 2 Control Valve..............................................................................................................T3-2
Group 3 Cooling Fan................................................................................................................T3-3
Group 4 Steering Pilot Valve (OrbitrolTM
) .................................................................................T3-4
Group 5 Steering Valve ............................................................................................................T3-5
Group 6 Pilot Valve...................................................................................................................T3-6
Group 7 Charging Circuit .........................................................................................................T3-7
Group 8 Drive Unit ...................................................................................................................T3-8
Group 9 Axle ............................................................................................................................T3-9
Group 10 Brake Valve ..............................................................................................................T3-10
Group 11 Others....................................................................................................................... T3-11
INDEX
ATTACHMENT
Hydraulic Circuit Diagram
Electrical Connection Diagram
Electrical Wiring Diagram - Front Chassis
Electrical Wiring Diagram - Rear Chassis
Electrical Wiring Diagram - Floor (Front Console)
Electrical Wiring Diagram - Floor (Rear & Side Console)
Electrical Wiring Diagram - CAB
All information, illustrations and specifications in this manual are based on the latest product information available at the
time of publication. The right is reserved to make changes at any time without notice.

3. INTRODUCTION
IN-01
To The Reader
Additional References
Manual Composition
Page Number
This manual is written for trained and skilled technicians
to provide technical information needed to maintain and
repair this machine.
 Be sure to thoroughly read this manual for correct
product information and service procedures.
Please refer to the other materials (Operation and
Maintenance Manual, parts catalog, engine technical
material and Kawasaki Shop Manual, etc.) in addition to
this manual.
This manual consists the Technical Manual, the Workshop
Manual and the Engine Manual.
 Information included in the Technical Manual:
Technical information needed for machine pre-delivery
and delivery, operation and activation of all devices
and systems, operational performance tests, and
troubleshooting procedures.
Each page has a number, located on the center lower part
of the page, and each number contains the following
information:
Example:
 Technical Manual: T 1-3-5
T Technical Manual
1 Section Number
3 Group Number
5 Consecutive Page Number for Each Group
 If you have any questions or comments, at if you found
any errors regarding the contents of this manual,
please contact using“Service Manual Revision Request
Form”at the end of this manual. (Note: Do not tear off
the form. Copy it for usage.):
 Information included in the Workshop Manual:
Technical information needed for maintenance and
repair of the machine, tools and devices needed for
maintenance and repair, maintenance standards, and
removal / installation and assembly / disassembly
procedures.
 Information included in the Engine Manual:
Technical information needed for machine pre-delivery
and delivery and maintenance and repair of the engine,
operation and activation of all devices and systems,
troubleshooting and assembly / disassembly procedures.
 Workshop Manual: W 1-3-2-5
W Workshop Manual
1 Section Number
3 Group Number
2 Sub Group Number
5 Consecutive Page Number for Each Group

4. INTRODUCTION
IN-02
Safety Alert Symbol and Headline Notations
In this manual, the following safety alert symbol and
signal words are used to alert the reader to the potential
for personal injury or machine damage.
dThis is the safety alert symbol. When you see this
symbol, be alert to the potential for personal injury.
Never fail to follow the safety instructions prescribed
along with the safety alert symbol.
The safety alert symbol is also used to draw attention to
component/part weights.
To avoid injury and damage, be sure to use appropriate
lifting techniques and equipment when lifting heavy
parts.
dCAUTION:
Indicated potentially hazardous situation which could, if
not avoided, result in personal injury or death.
IMPORTANT:
Indicates a situation which, if not conformed to the
instructions, could result in damage to the machine.
fNOTE:
Indicates supplementary technical information.
Units Used
Quantity To Convert From Into Multiply By
Length mm in 0.03937
mm ft 0.003281
Volume L US gal 0.2642
L US qt 1.057
m3
yd3
1.308
Weight kg lb 2.205
Force N kgf 0.10197
N lbf 0.2248
Torque N·m kgf·m 0.10197
Pressure MPa kgf/cm2
10.197
MPa psi 145.0
Power kW PS 1.360
kW HP 1.341
Temperature °C °F °C×1.8+32
Velocity km/h mph 0.6214
min-1
rpm 1.0
Flow rate L/min US gpm 0.2642
mL/rev cc/rev 1.0
fNOTE: The numerical value in this manual might be
different from the above-mentioned table.
SI Units (International System of Units) are used in this
manual. MKSA (Meter, Kirogram, Second, Ampere) system
units and English units are also indicated in parentheses
just behind SI units.
Example: 24.5 MPa (250 kgf/cm2
, 3560 psi)
A table for conversion from SI units to other system units
is shown below for reference purposes.

5. Symbol and Abbreviation
SY-1
Symbol and Abbreviation
Symbol /
Abbreviation
Name Explanation
TO Technical manual (Operational principle) Technical manual (Operational Principle).
TT Technical manual (Troubleshooting) Technical manual (Troubleshooting).
W, W/M Workshop manual Workshop manual (Removal and Installation, Disassembly
and Assembly).
MC Main Controller Main controller. MC controls the engine, pump, and valve
according to the machine operating condition.
ECM Engine Control Module Engine controller. ECM controls fuel injection amount
according to the machine operating condition.
VGS Variable Geometry System controller Variable turbo controller. VGS is an exhaust turbo charged
system to supercharge the exhaust energy while running
the engine at slow idle speed. VGS optimizes the turbine
rotation, improves the performance at slow-speed torque
and the acceleration, reduces fuel consumption, and reduces
particulate matter (PM) by adjusting the nozzle opening of
turbine housing.
TCU Transmission Control Unit Transmission control unit. TCU control transmission
according to the machine operating condition.
GSM Global System for Mobile communications
controller
Communication controller. GSM is a type of wireless
communication system, is used in more than on 100
countries around Europe and Asia, and becomes the factual
global standards of the mobile telephone.
GPS Global Positioning System Global positioning system.
CAN Controller Area Network CAN communication. CAN is a serial communications
protocol internationally-standardized by ISO (International
Organization for Standardization).
A/C Air Conditioner Air conditioner.
OPT Option Optional component.
MPDr. Maintenance Pro Dr. MPDr. is the independent software installed on a computer
prepared for troubleshooting, monitoring, and adjustment.
WU Warming-Up Warming-up.
Li Low (Slow) Idle Slow idle engine speed.
T/M Transmission Transmission
T/C Torque Converter Torque Converter
ATT Attachment Attachment.

6. Symbol and Abbreviation
SY-2
Symbol /
Abbreviation
Name Explanation
DPF Diesel Particulate Filter DPF is a filter which removes particulate matter (PM)
including the toxic substance of exhaust gas of the diesel
engine. Exhaust particulate removal equipment.
DPD Diesel Particulate Diffuser DPD is an exhaust emission control system, a type of DPF,
which cleans up particulate matter (PM) of diesel engine
exhaust gas. DPD is a ceramic filter which traps and filters
PM of exhaust gas. DPD burns up accumulated PM when PM
increases and regenerates the filter.
DOC Diesel Oxidation Catalyst Oxidation catalyst for the diesel engine. Diesel oxidation
catalyst oxidizes unburnt fuel and raises exhaust
temperature.
CSF Catalyzed Soot Filter Filter. The filter traps, burns, and remove particulate matter
(PM) by using high-temperature-exhaust gas with diesel
oxidation catalyst. Catalyst is applied onto the filter. This
advances PM burning.
PM Particulate Matter Particulate matter.
EGR Exhaust Gas Recirculation The EGR control re-circulates a part of exhaust gas in the
intake manifold and combines it with intake-air. Therefore,
combustion temperature is lowered and generation of oxide
of nitrogen (NOx) is controlled.

7. 85Z7(OCE)F&S
Group 1 Specifications
Specifications........................................................................T1-1-1
Group 2 Component Layout
Main Component (Overview)..........................................T1-2-1
Main Component.................................................................T1-2-2
Main Component.................................................................T1-2-3
Electric Component Layout (Overview)......................T1-2-4
Electrical System (Cab).......................................................T1-2-5
Controller and Relays....................................................T1-2-6
Right Console...................................................................T1-2-7
Monitor and Switches...................................................T1-2-8
Monitor Panel..................................................................T1-2-9
Electrical System (Relays)..........................................T1-2-10
Electrical System (Around Hydraulic Oil Tank)...T1-2-11
Electrical System (Around Fuel Tank)....................T1-2-12
Engine and Fan Pump......................................................T1-2-13
Exhaust Filter..................................................................T1-2-14
Hydraulic Pump..................................................................T1-2-15
Transmission and Torque Converter Assembly.......T1-2-15
Loading Control Valve......................................................T1-2-16
Manifold Valve.....................................................................T1-2-17
Parking Brake Solenoid Valve........................................T1-2-17
Brake Charge Valve............................................................T1-2-17
3-Spool Solenoid Valve Unit...........................................T1-2-17
Steering Valve......................................................................T1-2-18
Secondary Steering Pump (Option)............................T1-2-18
Flow Regulator Valve........................................................T1-2-18
Group 3 Component Specifications
Engine......................................................................................T1-3-1
Engine Performance Curve (6HK1XZWT-01)........T1-3-4
Engine Accessories..............................................................T1-3-5
Hydraulic Component........................................................T1-3-7
Electrical Component.......................................................T1-3-12
SECTION 1
GENERAL
CONTENTS

8. T1-1-1
SECTION 1 GENERAL
Group 1 Specifications
Specifications
Bucket Capacity: heaped m3
(Y3
) 3.7 (4.8)
Operating Weight kg (lbs) 20670 (45560)
Tipping Load kg (lbs) 16140 (35590)
Rated Loading Weight kg (lbs) 6300 (13890)
Engine ISUZU 6HK1 Diesel
A: Overall Length mm (in) 8460 (333)
B: Overall Width (Bucket) mm (in) 3100 (122)
C: Overall Height mm (in) 3460 (136)
D: Wheel Base mm (in) 3350 (132)
E: Tread mm (in) 2260 (89)
F: Ground Clearance mm (in) 480 (19)
G: Bucket Hinge Height mm (in) 4250 (167)
H: Dumping Clearance (45 °) mm (in) 3000 (118)
I: Dumping Reach (45 °) mm (in) 1040 (41)
R1: Minimum Rotation Radius mm (in) 6150 (242)
R2: Minimum Rotation Radius mm (in) 7180 (283)
Travel Speed Forward/Reverse km/h (mph) 36.4/24.6 (22.6/15.3)
Transmission Speeds (F/R) - 4/3
Articulation Angle (Left/Right) deg ( ° ) 37
Tire Size - 26.5-25-20PR (L3)
fNOTE:  * BOC (Bolt-On Cutting Edge)
 These specifications are subject to change without notice.
B
G
C
37 °
R2
R1
E H
45 °
I
F
D
A
MNEC-12-001

9. 4
T1-2-1
SECTION 1 GENERAL
Group 2 Component Layout
Main Component (Overview)
1
6
7
2
3
8
9
10
5
1- Bucket
2- Bell Crank (Lever)
3- Bucket Cylinder
4- Front Combination Light
(Headlight, Turn Signal Light,
Clearance Light, Hazard Light)
5- Front Work Light
6- Rear Work Light
7- Rear Combination Light (Turn
Signal Light, Hazard Light,
Tail Light, Brake Light, Backup
Light)
8- Lift Arm Cylinder
9- Lift Arm
10- Bucket Link
TNED-01-02-016
TNED-01-02-017

10. 1
T1-2-2
SECTION 1 GENERAL
Group 2 Component Layout
1- Fan Motor
2- Radiator
3- Inter Charge Air Cooler
4- Coolant Level and Surge Tank
5- Exhaust Filter/Muffler
6- Air Cleaner
7- Service Brake Accumulator
8- Parking Brake Solenoid Valve
9- Brake Charge Valve
10- Manifold Valve
11- Brake Valve
12- Steering Pilot Valve
13- Pilot Valve
14- Steering Valve
15- Loading Control Valve
16- 3-Spool Solenoid Valve Unit
17- Ride Control Accumulator
(Option)
18- Stop Valve
19- Flow Regulator Valve
20- Engine Oil Filter
21- Pilot Filter
22- Hydraulic Oil Tank
23- Engine
24- Fuel Filter
25- Fuel Pre-Filter
26- Fuel Tank
27- Torque Converter Cooler
28- Hydraulic Oil Cooler
11 12 13 14 15
16
17
18
19
20
21
22
23
27
28 24
25
26
Main Component
2
4
5
6
7
8 9
10
3
TNED-01-02-025

11. T1-2-3
SECTION 1 GENERAL
Group 2 Component Layout
1- Front Axle
2- Propeller Shaft (Front)
3- Steering Cylinder
4- Hydraulic Pump
5- Transmission
6- Rear Axle
7- Propeller Shaft (Rear)
8- Steering Accumulator
9- Pressure Sensor (Brake
Secondary Pressure)
2
1
3
4
5
6
7
8
9
Main Component
TNED-01-02-027

12. T1-2-4
SECTION 1 GENERAL
Group 2 Component Layout
Electric Component Layout (Overview)
1- Bucket Proximity Switch
2- Lift Arm Angle Sensor
3- ECM (Engine Control Module)
4- Components Related with Cab
(Refer to T1-2-5)
5- Components Related with
Hydraulic Oil Tank (Refer to
T1-2-11)
6- Components Related with
Engine (Refer to T1-2-13)
7- Back Buzzer
8- Battery
9- Components Related with Fuel
Tank (Refer to T1-2-12)
10- Components Related with
Hydraulic Pump (Refer to
T1-2-15)
11- Secondary Steering Pump
Delivery Pressure Sensor
(Option)
6
4
5
3
1
2
11 9
10
8
7
TNED-01-02-028

13. 5
6
3
2
1
T1-2-5
SECTION 1 GENERAL
Group 2 Component Layout
Electrical System (Cab)
1- Radio
2- Upper Switch Panel (Option)
3- Speaker
4- Rear Wiper Motor
5- Components Related with
Right Console (Refer to T1-2-7)
6- Components Related with
Controllers and Relays (Refer
to T1-2-6)
7- Outside Temperature Sensor
8- Brake Lamp Switch
9- Front Wiper Motor
10- Components Related with
Monitor and Switches (Refer
to T1-2-8)
9
10
8
4
7 TNED-01-02-029

14. T1-2-6
SECTION 1 GENERAL
Group 2 Component Layout
Controller and Relays
3
4
2
1
11 10 9 8
6
5
7
28
30
29
12
17
22
27
16
21
26
15
20
25
14
19
24
13
18
23
1- TCU (Transmission Control
Unit)
2- Flasher Relay
3- Air Conditioner Controller
4- MC (Main Controller)
5- ECM Main Relay
6- Fuel Pump Relay
7- Starter Cut Relay
8- Head Light Relay (Left) (AR1)
9- Head Light Relay (Right) (AR2)
10- High-Beam Relay (AR3)
11- Bucket Leveler Relay (AR4)
12- Back Buzzer Relay (AR5)
13- Work Light (Front) Relay (AR6)
14- Work Light (Rear) Relay (AR7)
15- Right Turn Signal Light Relay
(AR8)
16- Horn Relay (AR9)
17- Secondary Steering Relay
(AR10)
18- Parking Brake Relay 1 (RBR1)
19- Parking Brake Relay 2 (BR2)
20- Pilot Shut-Off Relay (BR3)
21- Brake Light Relay (BR4)
22- Load Dump Relay (BR5)
23- Neutral Relay (BR6)
24- Left Turn Signal Light Relay
(BR7)
25- Front Washer Relay (BR8)
26- Rear Wiper Relay (BR9)
27- Rear Washer Relay (BR10)
28- Fuse Box B
29- Fuse Box A
30- MPDr. Connector
TNED-01-02-009
TNED-01-02-029
TNED-01-02-030

15. T1-2-7
SECTION 1 GENERAL
Group 2 Component Layout
Right Console
Fingertip Control Type
Multi-Function Joystick Type (Option)
1- Auxiliary Control Lever
(Option)
2- Bucket Control Lever
3- Lift Arm Control Lever
4- Forward/Reverse Switch
(Option)
5- Front Control Lever Lock
Switch
6- Declutch Position Switch
7- Travel Mode Selector Switch
8- Power Mode Switch
9- Forward/Reverse Selector
Switch (Option)
10- Fan Reverse Rotation Switch
11- Auxiliary
12- Hydraulic Coupler Switch
(Option)
13- Secondary Steering Operation
Check Switch (Option)
14- Exhaust Filter Switch
15- Auxiliary
16- Auxiliary
17- Ride Control Switch (Option)
18- Hold Switch
19- Right Console Slide Lever
20- DSS (Down Shift Switch)
21- Horn Switch
22- Quick Power Switch
23- Forward/Reverse Selector
Switch
24- Forward/Reverse Switch
25- Multi-Function Joystick Lever
26- Hold Switch (Under the Lever)
27- Horn Button (Under the Lever)
12
11
10
9
8
7
6
5
4
3
2
1
19
18
22
27
26
21
20
17
16
15
14
13
12
11
10
23
8
7
6
5
19
24
25
22 20 1
17
16
15
14
13
MNEC-01-041
MNEC-01-042
MNEC-01-043
MNEC-01-044

16. T1-2-8
SECTION 1 GENERAL
Group 2 Component Layout
Monitor and Switches
5 6 7 8 9
4
3
2
1
1- Front/Rear Wiper Switch
2- Hazard Switch
3- Work Light Switch
4- Parking Brake Switch
5- Forward/Reverse Lever/Shift
Switch
6- Monitor Panel (Refer to T1-2-9)
7- Turn Signal Lever/Light
Switch/High-Low Beam
(Dimmer) Switch
8- Multi-Function Monitor/Air
Conditioner Switch Panel
9- Key Switch
MNEC-01-038
MNEC-01-037
TNED-01-02-029

17. T1-2-9
SECTION 1 GENERAL
Group 2 Component Layout
1- Left Turn Signal Indicator
2- High Beam Indicator
3- Work Light Indicator
4- Right Turn Signal Indicator
5- Parking Brake Indicator
6- Brake Oil Low Pressure
Indicator
7- Hydraulic Oil Level Indicator
8- Low Steering Oil Pressure
Indicator
9- Transmission Warning
Indicator
10- Control Lever Lock Indicator
11- Low Fuel Level Indicator
12- Discharge Warning Indicator
13- Fuel Gauge
14- Multi Function Monitor
15- Communication System Error
Indicator
16- Coolant Temperature Gauge
17- Overheat Indicator
18- Engine Trouble Indicator
19- Engine Oil Low Pressure
Indicator
20- Preheat Indicator
21- Air Filter Restriction (Clogging)
Indicator
22- Clearance Light Indicator
Monitor Panel
MNEC-01-001
4
5
6
7
8
10
9
3
2
1
22
21
20
19
18
17
16
14 13
11
12
15

18. T1-2-10
SECTION 1 GENERAL
Group 2 Component Layout
Electrical System (Relays)
1- Battery Relay
2- Fusible Link (100A)
3- Fusible Link (65A)
4- Starter Relay 1
5- Glow Plug Relay
1 4
5
2 3
MNEC-01-082

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20. T1-2-11
SECTION 1 GENERAL
Group 2 Component Layout
Electrical System (Around Hydraulic Oil Tank)
1- MAF (Mass Air Flow) Sensor
2- Air Cleaner
3- Hydraulic Oil Level Sensor
4- Secondary Steering Pump
(Option)
5- Hydraulic Oil Tank
6- Hydraulic Oil Temperature
Sensor
2
4
6
3
1 5
View A
TNED-01-02-023
TNED-01-02-024
A

21. T1-2-12
SECTION 1 GENERAL
Group 2 Component Layout
Electrical System (Around Fuel Tank)
1- Fuel Pump 2- Fan Pump Delivery Pressure
Sensor
3- Fan Motor Relief Valve
4- Fuel Tank
5- Fuel Level Sensor
1 2
3
5 4 TNED-01-02-031

22. T1-2-13
SECTION 1 GENERAL
Group 2 Component Layout
1 2 3 4 5
7
10 11
12
13
14
15
9
8
16
6
Engine and Fan Pump
1- EGR Valve
2- Injector
3- Boost Temperature Sensor
4- Boost Pressure Sensor
5- Glow Plug
6- Cam Angle Sensor
7- Turbocharger
8- Overheat Switch
9- Coolant Temperature Sensor
10- Intake Throttle
11- Common Rail Pressure Sensor
12- Fuel Temperature Sensor
13- Supply Pump
14- Crank Revolution Sensor
15- Engine Oil Pressure Sensor
16- Fan Pump
TNED-01-02-003
TNED-01-02-006
TNED-01-02-004
TNED-01-02-005