Description

Hitachi E75-ENB3-HGTK-1 Engine Manual

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TABLE OF CONTENT

1. General………………………………….1-1
General ……………………………………………1-1
[1] Specifications……………………………………..1-1
[2] Engine Performance Curve…………………..1-2
[3] Dimensions ………………………………………..1-2
For Safe and Sure Operation …………….1-3
[1] General Precautions ……………………………1-3
[2] Tightening Torque Chart……………………….1-5
[3] Troubleshooting ………………………………….1-6
[4] Servicing Specifications ……………………..1-25
[5] Periodic Maintenance ………………………..1-28
[6] Special Tools ……………………………………1-32
2. Mechanism…………………………….2-1
General ……………………………………………2-1
[1] Operation of Diesel Engine …………………..2-1
[2] TVCS Method …………………………………….2-2
[3] Emission Control…………………………………2-3
Engine body …………………………………….2-6
[1] Crank Case (Cylinder Block)…………………2-6
[2] Cylinder Head …………………………………….2-6
[3] Crankshaft………………………………………….2-7
[4] Piston and Piston Ring…………………………2-7
[5] Connecting Rod ………………………………….2-8
[6] Cam Shaft ………………………………………….2-8
[7] Flywheel…………………………………………….2-9
[8] Valve Mechanism………………………………..2-9
[9] Timing Gear ……………………………………..2-10
[10] Dynamic Balancer (for balancer spec.
engine)………………………………………………… 2-11
Lubrication System ………………………..2-12
[1] General ……………………………………………2-12
[2] Oil Pump………………………………………….2-13
[3] Oil Strainer ……………………………………….2-13
[4] Relief Valve………………………………………2-13
[5] Oil Signal………………………………………….2-14
[6] Oil Pressure Switch……………………………2-14
Cooling System ……………………………..2-15
[1] General ……………………………………………2-15
[2] Radiator …………………………………………..2-15
[3] Radiator Cap…………………………………….2-16
Fuel System …………………………………..2-17
[1] General ……………………………………………2-17
[2] Fuel Filter …………………………………………2-17
[3] Injection Pump ………………………………….2-18
[4] Injection Nozzle…………………………………2-22
[5] Governor Mechanism…………………………2-23
Intake and Exhaust System …………….2-25
[1] General ……………………………………………2-25
[2] Air Cleaner……………………………………….2-25
[3] Muffler……………………………………………..2-25
Electrical System……………………………2-26
[1] General ……………………………………………2-26
[2] Starter ……………………………………………..2-27
[3] Glow Plug…………………………………………2-29
[4] Glow Lamp Timer………………………………2-30
[5] Fan Dynamo …………………………………….2-30
[6] Regulator ………………………………………… 2-30
3. Disassembly, Assembly and
Maintenance………………………………3-1
Engine Body…………………………………… 3-1
[1] Maintenance ……………………………………… 3-1
[2] Assembling and Disassembling……………. 3-3
[3] Maintenance ……………………………………. 3-14
Lubricating System ………………………. 3-27
[1] Check and Adjustment………………………. 3-27
[2] Maintenance ……………………………………. 3-28
Cooling System…………………………….. 3-29
[1] Check and Adjustment………………………. 3-29
[2] Assembling and Disassembling………….. 3-30
Fuel System………………………………….. 3-31
[1] Check and Adjustment………………………. 3-31
[2] Assembling and Disassembling………….. 3-33
Electrical System ………………………….. 3-34
[1] Check and Adjustment………………………. 3-34
[2] Assembling and Disassembling………….. 3-35
[3] Maintenance ……………………………………. 3-36

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