Hitachi AH170 AH200 AH250 Articulated Dump Truck Service Manual (KM-TM 1725B)
FILE DETAILS:
Hitachi AH170 AH200 AH250 Articulated Dump Truck Service Manual (KM-TM 1725B)
- Format: PDF
- Language: English
- Number of Pages: 428 pages
- Brand: Hitachi
- Type of document: Repair Manual
- Model: AH170 AH250 Articulated Dump Truck
- Part No: KM-TM-1725B
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DESCRIPTION:
Hitachi AH170 AH200 AH250 Articulated Dump Truck Service Manual (KM-TM 1725B)
- This manual is written for an experienced technician . the information contained in this manual has been produced to assist you in the correct ‚operation and maintenance of the AH170 to AH250.
- This Manual is divided into sections with logical sequence. Every effort has been made to ensure that the information contained in this manual is correct at the time of publication.
- HITACHI has a policy of oontinuous product development. improvement and design therefore changes may have occurred that are not included in this manual.
- You the user of this manual are urged to strictly comply with the instructions and wamings that are given in the interest of general safety.
- Please do not hesitate to contact your nearest authorized service centre or dealer for additional inierrnation. The address lists on the following pages were correct from the 31 March 1999
TABLE OF CONTENTS:
Hitachi AH170 AH200 AH250 Articulated Dump Truck Service Manual (KM-TM 1725B)
lNDEX
SECTION 1 PAGE
ELECTRICAL
Specificatlons 1
Operator controls and instruments 2-8
Master Display unit ( MFA 10 ) 9
Default displays 10-15
Threeholds and warnings 16-17
Switches 18-20
Range hold switch 21
Battery disconnect switch 22
lgnitbn switch 23
Start button 24
Battery circuit breaker 25
Gear Shift control 26
Air conditioner switch 27-28
General
Electrical earthing connections 29-30
Pauli tinding 31
Circuit breakers 32
Relays 33
Trouble shooting 34-35
Schematics 36
Earth points 36
Starting and charging 37
Warning lights 38
MFA 10 & Over rev 39
Lighting 40
Turn and hazards 41
Brake lights and exhaust brake 42
Aircon 43
Wipers ! washer 44
Cold Start 45
Battery Balancer 46
Range Hold 47
Allison /VEHICLE 48
Electric mirrors 49
Transmission cooler 50
Connector 1 51
Connectors 2 & 3 52
Connectors 4.5.6 & 7 53
Connectors 8.9.10 & 11 54
Connectors 12 . 13 & 14 55
Connectors 15.16.17 & 18 56
Connectors 19.20.21 & 22 57
Connectors 23.24.25 & 26 58
Connectors 27.28‚29‚30 & 31 59
Connectors 32 – 37 60
SECTION 2
TRANSMISSION
General Description 1
ldentification 2
Torque Converter 2-7
Stall Testing 8—11
Planetary gears and power flows
Planetary gear sets 12
Neutral 17
First 18
Second 19
Third 20
Fourth 21
Fifth 22
Sixth 23
Reverse 24
Hydraulic system OverviewSystem function 25
Main pressure 26
Solenoid and Regulator valves 26
Clutch application 27
Latching valves 28
Control main circuit 29
Torque convertor circuit 29-31
Exhaust backtill 31
Main pressure regulator 32
Control main regulator 33
Solenoids
Normally open 34
Normally closed 35—36
Hydraulic Schematics (Transmission) Overview 37
Component location (told out) 37
Neutral {told out) 38
First {feld out) 39
Second (feld out) 40
Third (told auf) 41
Fourth {ford out) 42
Fiith (leid out) 43
Sixth (told out) 44
Reverse {feld au!) 45
Hydraulic flow operation 46
Torque converter and lube circuits 46
Convertor flow valve ‘ 47
Over drive knock down valve 47—48
Main Pressure 49
Exhaust backfill 50
Electronic control system 51
ECU 52
Pulse width modulation (PWM) 53—54
Upshift dutch control 55-56
Shift selectors 57-59
Vehicle interface module 59
Throttle position sensor and adjustment 60-78
Speed sensors 79
Wiring Hamess 80—82
Upshift tests 82-83
Do not shiit light (DNS) 84
Auto detect 85-87
Wire check procedures 88-91
Oil level sensor ( Checking the oil level) 92-96
Diagnostic codes 97
Reading and cieating 97-101
Code 131o< 102-103
Code 14xx 104-106
Code 21xx 107-108
Code 22xx 109-110
Code 23xx 111
Code 24xx 112-116
Code25xx 117-118
Code 26xx 1 19
Code 32xx 120
Code 33xx 121-122
Code 34xx 123
Code 35xx 124
Code 3600 125
Code 42xx 126-128
Code 44xx 129—130
Code 45xx 131-132
Code 46xx 133
Code 51xx 134-136
Code 52xx 137-138
Code 53xx 139-140
Code 54xx 141-144
Code 55xx 145-146
Code 56xx 147-148
Code 57xx 149—1 50
Code 61xx 151—152
Code 62xx 153—154
Code 63xx 155
Code 64xx 156-158
Code 66xx 159
Transmission plugs
ECU Black connector 160
ECU Blue connector 161
ECU Grey connector 162
Bulk head 163
Primary Shift selector 164
Speed sensor connector 165
Diagnostic plug connector 166
Vehicle inter face wiring connector 167-168
hrottie position Sensor connector 169
Retarder connector 169
Retarder temperature sensor connector 170
Vehicle Inter face module Connector Harness 171
Vehicle Inter face module Connector 172—173
Resistance module 174
General trouble shooting 175-193
Welding on the Vehicle 194
Wiring schematlc (told out) 195
SECTION 3
HYDRAULICS
Location of Hydraulic components 1
Pressure Equivalent tables 2-3
Main pump 4-5
Pressure compensating valve { Residual ) 6
Pressure compensating valve ( Working ) 6
Pressure compensating valve ( Compensating) ?
Basic load sensing 8-9
Hydraulic components 10
Main pump 10
Emergency steering pump 11
Steering control valve 12
Breite accumulator 13
Check valve 14
Voac Block 15-17
Hydraulic system operation 18
Brake Accumulator charging 18
Steering 19
Normal steering 20
Emergency steering 21
‘I’tpping 22
Priority 23
Hydraulic retarding 24
Voac block ( illustrations) 25
Top view 25
Right view 25
Rear view 26
Front view 26
Bottom view 27
Left view 27
Orbitz! Steering Valve operation 28-30
Pressure setting procedure 31-43
Hydraulic schematics 44
Hydraulic system component location 45
SECTION 4
PNEUMATICS 1
Cempressor 2
Unloader valve 3-6
Park Brake 7-9
Suspension 10
Leveling Vlave 11
Pneumatic system operation
Tip control 12
Exhaust Brake & Hydraulic retarder 13-14
inter axle lock 15
Air suspensien seat 15
Schematics
Location of components 17
Pipe flow Diagram 18
System schematic 19
SECTION 5
DROP-BOX AXLES AND BRAKES
Propshafts 1
Maintenance 1-2
Lubrication 3
Propshait layout 4
Retaining bolts and lock nut torque check 5
Troubleshooting 6
Dropbox 7
Technical Date 8
Disassembiy of Drop box 9-21
Assembly 22-49
Axle Clearance Table 50
Gear Backlash 50
Differentlals 51-52
Replacing Seele 53—73
Brakes 74-81
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