Kubota D1403-BE

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Contents7
Safety Starting12
Safety Working12
Ventilate Work Area13
Prevent Acid Burns13
Dispose of Fluid Properly13
Prepare for Emergencies13
Specifications22
Performance Curves28
Dimensions31
Mechanism33
Feature34
Engine Body36
Cylinder Block36
Cylinder Head36
Crankshaft38
Piston and Piston Rings38
Connecting Rod38
Camshaft40
Flywheel40
Rocker Arm40
Lubricating System42
General42
Engine Oil Flow43
Oil Pump44
Relief Valve44
Oil Filter Cartridge46
Oil Pressure Switch46
Cooling System48
Water Pump48
Thermostat50
Radiator50
Radiator Cap50
Intake and Exhaust System52
Air Cleaner52
Muffler52
Fuel System54
Injection Pump54
Pump Element56
Delivery Valve56
Reverse Flow Preventing Function56
Suck-Back Function56
Dumping Valve58
Injection Control58
At Fuel Injection58
At Suck-Back58
Injection Nozzle60
Fuel Filter60
Fuel Lift Pump62
Governor64
At Idling64
At High Speed Running with Overload66
To Stop Engine66
Electrical System68
Charging System68
Alternator68
Regulator68
Disassembling and Servicing71
Engine Identification72
Model Name and Engine Serial Number72
Cylinder Number72
General Precaution74
Tightening Torques76
Troubleshooting79
Servicing Specifications87
Maintenance Check List103
Check and Maintenance106
Daily Check Points106
Checking Engine Oil Level106
Checking and Replenish Cooling Water106
Check Point of Every 50 Hours108
Checking Fuel Pipe108
Changing Engine Oil110
Checking Fan Belt Tension110
Checking Fan Belt Damage110
Cleaning Air Cleaner112
Changing Engine Oil Filter Cartridge112
Changing Fuel Filter Cartridge112
Check Point of Every 800 Hours114
Checking Valve Clearance114
Special Tools116
Flywheel Puller116
Special-Use Puller Set116
Valve Seat Cutter Set116
Diesel Engine Compression Tester118
Oil Pressure Tester118
Auxiliary Socket for Fixing Crankshaft Sleeve118
Plastigage118
Red Check (Crack Check Liquid)120
Injection Pump Pressure Tester120
Valve Guide Replacing Tool120
Idle Gear Bushing Replacing Tool122
Small End Bushing Replacing122
Crankshaft Bearing 1 Replacing122
Flywheel Stopper122
Compression Pressure124
Top Clearance124
Draining Water and Oil126
External Components126
Air Cleaner, Muffler and Others126
Cylinder Head and Valves128
Cylinder Head Cover and Nozzle Holder128
Nozzle Heat Seal Service Removal Procedure128
Rocker Arm, Push Rod and Injex. Manifold128
Cylinder Head and Tappet130
Valve130
Fuel Feed Pump and Pump Cover130
Governor Spring132
Speed Control Plate134
Start Spring134
Gear Case134
Crankshaft Oil Slinaer134
Idle Gear and Camshaft136
Fuel Camshaft and Fork Lever Assembly136
Oil Pump and Crank Gear136
Piston and Connecting Rod138
Oil Fan and Oil Strainer138
Piston Ring and Connecting Rod140
Bearina Case Cover and Crankshaft142
Servicing144
Main Bearing Case Assembly144
Cylinder Head Surface Flatness144
Cylinder Head Flaw146
Valve Recessing146
Clearance between Valve Stem and Guide146
Correcting Valve and Valve Seat148
Valve Spring150
Oil Clearance of Rocker Arm Shaft and Bearing150
Timing Gear Anr Camshaft152
Timing Gear Backlash152
End Play of Camshaft152
Camshaft Alignment152
Oil Clearance of Camshaft Journal154
Clearance between Idle Gear Shaft and Idle Gear Bushing154
Replacing Idle Gear Bushing156
Piston Pin-Bore I.D.156
Oil Clearance between Piston Pin and Small End Bushing156
Replacing Connecting Rod Small End Bushing158
Piston Ring Gap158
Clearance between Piston Ring and Groove158
Connecting Rod Alignment160
Side Clearance of Crankshaft160
Crankshaft Alignment160
Oil Clearance between Crank Pin and Crank Pin Bearing162
Crankshaft Sleeve Wear162
Replacing Crankshaft Sleeve164
Oil Clearance between Crankshaft Journal and Crankshaft Bearing164
Undersized and Oversized Bearing168
Cylinder Bore170
Cylinder Bore I.D.170
Correcting Cylinder170
Engine Oil Pressure172
Rotor and Lobe Clearance172
Clearance between Rotor and Cover172
Fan Belt Tension174
Thermostat's Valve Opening Temperature174
Radiator Water Leakage176
Radiator Cap Air Leakage176
Injection Timing178
Fuel Tightness of Pump Element180
Fuel Tightness of Delivery Valve180
Nozzle Injection Pressure180
Fuel Tightness of Needle Valve Seat182
Nozzle Holder182
Motor Test184
Magnet Switch184
Glow Plug184
Output Current186
Connect Voltage186
No-Load Testing186
Rotor Coil Resistance188
Cut-In Voltage188
No-Load Regulating Voltage190
Regulator Relay192
Compact Type194
Regulating Voltage194
No-Load Characteristics194
Starter Motor196
Brush Holder196
Housing, Idle Gear and Overrunning Clutch196
Plunger198
Pulley198
Drive Side End Frame and Rotor198
Rectifier200
Rear End Cover200
IC Regulator202
Rear End Frame202
Rotor202
Retainer Plate204
Bearing on the Drive End Side204
Bearing at the Slip Ring Side204
Armature Coil208
Yoke208
Armature Bearing208
Overrunning Clutch208
Slip Ring210
Brush Wear210
Rotor Coil210
Stator Coil212
Positive Diodes212
Negative Diodes212
N Terminal and Coil Connection212

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Kubota D1403-BE - Page 2

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