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FOREWORD 
This workshop manual has been prepared to provide information on electrical circuits for the following Hino Vehicles. 
Applicable for FG8J, FL8J and FM8J series, equipped with J08E engine 
When making any repairs on your vehicle, be careful not to be injured through improper procedures. 
As for maintenance items, refer to the Owner's Manual. 
All information and specifications in this manual are based upon the latest product information available at the time of print- 
ing. 
Hino Motors reserves the right to make changes at any time without prior notice. 
Please note that the publications below have also been prepared as relevant workshop manuals for the components and 
systems in this vehicles. 
Manual Name 
Pub. No. 
Chassis Workshop Manual 
S1-MFME04A EWD 
J08E Engine Workshop Manual 
S5-MJ08E06A 
Trouble shooting Workshop Manual 
S7-MFME01A 
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CHAPTER REFERENCES REGARDING THIS WORKSHOP MANUAL 
Use this chart to the appropriate chapter numbers for servicing your particular vehicle. 
CHAPTER 
MANUAL No. 
S1-MFME04A 
MODELS 
FG8J, FL8J, FM8J 
GENERAL INTRODUCTION 
1-001 
CLUTCH MAIN UNIT 
3-001 
CLUTCH CONTROL 
4-001 
TRANSMISSION MAIN UNIT 
6-001 
(MF06S) 
6-002 
(ZF 9S1110) 
PTO (POWER TAKE-OFF) 
9-001 
TRANSMISSION/TRANSFER CONTROL 
10-001 
PROPELLER SHAFT 
12-001 
(HE1160) 
12-002 
(MC0000) 
12-003 
(MC1040) 
DIFFERENTIAL CARRIER 
14-001 
(SH17) 
14-002 
(THD17) 
BRAKE EQUIPMENT 
15-001 
SERVICE BRAKE 
16-001 
EXHAUST BRAKE 
19-001 
PARKING BRAKE 
21-001 
STEERING UNIT 
23-001 
POWER STEERING 
24-001 
FRONT AXLE 
26-001 
(LF578) 
26-002 
(LF57I) 
26-003 
(MF678) 
26-004 
(MF67I) 
REAR AXLE 
27-001 
(DIFFERENTIAL GEAR SERIES: SH17) 
27-002 
(DIFFERENTIAL GEAR SERIES: THD17) 
WHEEL AND TIRE 
28-001 
SUSPENSION 
30-001 
(MODEL: FG) 
30-002 
(MODELS: FL, FM) 
CHASSIS FRAME 
32-001 
CAB 
36-001 
ELECTRICAL EQUIPMENT 
37-001 
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CLUTCH EQUIPMENT 
CLUTCH MAIN UNIT 
CLUTCH CONTROL 
TRANSMISSION EQUIPMENT 
TRANSFER MAIN UNIT 
AUTOMATIC TRANSMISSION 
PTO (POWER TAKE-OFF) 
TRANSMISSION / TRANSFER CONTROL 
PROPELLER SHAFT EQUIPMENT 
DIFFERENTIAL EQUIPMENT 
DIFFERENTIAL CARRIER 
BRAKE EQUIPMENT 
INDEX: CHASSIS GROUP 1/3 
PROPELLER SHAFT 
WORKSHOP 
MANUAL 
All rights reserved. This manual may not be 
reproduced or copied in whole in part, with- 
out the written consent of Hino Motors, Ltd. 
SERVICE BRAKE 
ABS & ASR 
ES START (EASY & SMOOTH START SYSTEM) 
GENERAL INTRODUCTION 
TRANSMISSION MAIN UNIT 
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EXHAUST BRAKE 
INDEX: CHASSIS GROUP 2/3 
RETARDER BRAKE 
PARKING BRAKE 
STEERING EQUIPMENT 
STEERING UNIT 
POWER STEERING 
AXLE EQUIPMENT 
FRONT AXLE 
REAR AXLE 
WHEEL AND TIRE 
SUSPENSION 
CHASSIS EQUIPMENT 
CHASSIS FRAME 
SUSPENSION EQUIPMENT 
COUPLER (5TH WHEEL) 
PINTLE HOOK 
CAB EQUIPMENT 
CAB 
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ELECTRIC WIRE 
INDEX: CHASSIS GROUP 3/3 
ELECTRICAL EQUIPMENT