Z402-EB-ONAN-1

Kubota Z402-EB-ONAN-1 User Manual

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WORKSHOP

MANUAL

DIESEL

ENG'INE

Z402-EB-ONAN-1

Table of Contents

Safety Information4
Safety Starting5
Safety Working5
Avoid Fires5
Ventilate Work Area6
Prevent Acid Burns6
Dispose of Fluids Properly6
Prepare for Emergencies6
Specifications7
Table of Contents8
Servicing8
General Information10
Model Name and Engine Serial Number10
Cylinder Number10
[I] Engine Identification10
General Precaution11
Tightening Torques12
Troubleshooting13
Servicing Specifications16
- Maintenance Check List22
- Checking Engine Oil Level23
- Checking and Replenish Cooling Water23
- Checking Fuel Pipe24
- When Bleeding Fuel System24
Check Point of Every Hours24
- Changing Engine Oil25
- Checking Fan Belt Tension25
- Fan Belt Damage and Wear25
- Cleaning Air Filter Element26
- Cleaning Air Cleaning26
- Cleaning Fuel Filter26
- Checking Radiator Hoses (Water Pipes)27
- Changine Engine Oil Filter Cartridge27
- Checking Valve Clearance28
- Checking Nozzle Injection Pressure29
Special Tools29
- Valve Guide Replacing Tool31
- Injection Pump Pressure Tester32
- Bushing Replacing Tool33
- Flywheel Stopper33
- Chankshaft Bearing 1 Replacing Tool34
- Compression Pressure35
Engine Body Checking and Adjusting35
- Draining Cooling Water and Engine Oil36
- Top Clearance36
- Disassembling and Assembling36
Cylinder Head and Valves37
- Injection Pump and Speed Control Plate39
- Fan Drive Pulley39
Timing Gear and Camshaft39
- Gear Case40
- Idle Gear40
- Fuel Camshaft40
- Oil Pump and Crankshaft Gear40
- Oil Pan and Oil Strainer41
- Connecting Rod Cap41
Piston and Connecting Rod41
- Piston42
- Piston Ring and Connecting Rod43
Flywheel and Crankshaft44
- Main Bearing Case Assembly45
- Cylinder Head Surface Flatness45
Servicing45
- Cylinder Head Flaw46
- Valve Recessing46
- Clearance between Valve Stem and Valve Guide46
- Valve Seating47
- Correcting Valve and Valve Seat47
- Valve Lapping48
- Replacing Valve Guide48
- Free Length and Tilt of Valve Spring48
- Valve Spring Setting Load48
- Timing Gear Backlash49
- Oil Clearance between Tappet and Tappet Guide Bore49
- Push Rod Alignment49
- Oil Clearance between Rocker Arm Shaft and Bearing49
Timing Gear and Camshaft49
- Idle Gear Side Clearance50
- Camshaft Side Clearance50
- Cam Height50
- Oil Clearance of Camshaft Journal50
- Replacing Idle Gear Bushing51
- Piston Pin Bore ID51
- Oil Clearance between Piston Pin and Small End Bushing51
Piston and Connecting Rod51
- Replacing Small End Bushing52
- Piston Ring Gap52
- Clearance between Piston Ring and Groove53
- Connecting Rod Alignment53
- Crankshaft Side Clearance54
- Crankshaft Alignment54
- Oil Clearance between Crankpin and Crankpin Bearing55
- Oil Clearance between Crankshaft Journal and Crankshaft56
- Cylinder Wear58
- Correcting Cylinder58
- Lubricating System Checking59
- Oil Pump Servicing59
- Engine Oil Pressure59
- Rotor Lobe Clearance59
- Clearance between Rotor and Cover60
- Cooling System Checking61
- Radiator Check61
- Thermostat Valve Opening Temperature61
[I] Fan Belt61
- Water Pump Assembly62
- Cooling System Disassembly and Assembly62
- Thermostat Assembly62
- Radiator Cap Air Leakage62
- Fuel System Checking and Adjusting63
- Injection Pump63
- Injection Timing63
- Fuel Tightness of Pump Element63
- Injection Nozzle64
- Fuel Tightness of Delivery Valve64
- Nozzle Injection Pressure64
- Nozzle Spraying Condition64
- Injection Nozzle Disassembly and Assembly65
- Valve Seat Tightness65

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Kubota Z402-EB-ONAN-1 Specifications

General

Brand	Kubota
Model	Z402-EB-ONAN-1
Category	Engine
Language	English

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