Kubota EA300-E2-NB1-APU Engine Workshop Manuals

Manuals and User Guides for Kubota EA300-E2-NB1-APU Engine Workshop. We have 1 Kubota EA300-E2-NB1-APU Engine Workshop manual available for free PDF download: Workshop Manual

Kubota EA300-E2-NB1-APU Workshop Manual (129 pages)

EA 300-E2 series; EA 300-EL series

Brand: Kubota | Category: Engine | Size: 6 MB

Introduction
2
Safety Precautions
3
Before Servicing and Repairing
3
Safety Starting
3
Safety Working
4
Avoid Fires
4
Ventilate Work Area
5
Dispose of Fluids Properly
5
Prevent Acid Burns
5
Prepare for Emergencies
5
Specifications
6
Performance Curves
8
Dimensions (EA300-E2-NB1)
9
Dimensions (EA300-E2-NB1-APU)
10
Dimensions (EL300-E2-AR)
11
Dimensions (EL300-E2-KCL)
12
Pulley Shaft (EA300-E2-NB1, EA300-E2-NB1-APU, EL300-E2-AR-KCL)
13
V-Pulley (EL300-E2-AR)
13
Flywheel
13
Contents
14
Engine Identification
15
Model Name and Engine Serial Number
15
Engine Serial Number
15
Year of Manufacture
15
Month of Manufacture
16
General Precautions
17
E2 Engine
18
Maintenance Check List
19
Lubricating Oil
19
Lubricating Oil Recommended When a Low-Sulfur or High-Sulfur Fuel Is Employed
19
Check and Maintenance
20
Daily Check List
20
Checking Coolig Water Level (Daily)
20
Checking Engine Oil Level (Daily)
20
Check Point of Every 50 Hours
21
Check Points of Every 100 Hours
21
Cleaning Air Cleaner Element
21
Changing Engine Oil and Cleaning Oil Strainer (First 50 Hours and Every 100 Hours)
21
Special Tools
23
Special Use Puller Set
23
Piston Ring Compressor
23
Piston Ring Tool
23
Socket Wrench 29
24
Flywheel Puller
24
Red Check
24
Radiator Tester
24
Conecting Rod Alignment Tool
25
Nozzle Tester
25
Plastigage
25
Diesel Engine Compression Tester
25
Oil Pressure Tester
26
Valve Seat Cutter
26
Valve Guide Replacing Tool
26
Rocker Arm Bushing Replacing Tool
27
Idle Gear Bushing Replacing Tool
27
Piston Pin Bushing Replacing Tool
27
Crankshaft Main Bearing 1 Iserting Tool
28
Flywheel Stopper
28
Crank Gear Puller
29
Ction Pump Pressure Tester
30
Feature
32
Figure Shows EA300 Engine
32
Engine Body
33
Cylinder Head
33
Valve Mechanism
35
Valve Guide
35
Valve Timing
36
Cylinder Block and Cylinder Liner
37
Crankshaft and Crankshaft Journal Bearing
37
Piston and Piston Ring
38
Conecting Rod and Connecting Rod Bearing
38
Timing Gear
39
Camshaft
39
Dynamic Balancer
40
Lubricating System
41
General
41
Oil Pump
42
Oil Strainer
42
Relief Valve
43
Oil Signal
43
Oil Pressure Switch
43
Cooling System
44
Radiator
44
Radiator Cap Function
45
When Radiator Pressure Is High
45
When Radiator Pressure Is Negative
45
Intake/Exhaust System
46
Air Cleaner
46
Muffler
46
Fuel System
47
Injection Pump
48
Fuel Pressure-Feed Stroke to Injection Nozzle
48
Fuel Suction
48
Fuel Pressure-Feeding Commencement
48
Regulating Fuel Injection
49
No Fuel Delivery...engine Stopped
49
Fuel Injection...small to Medium
49
Fuel Injection...maximum
49
Delivery Valve
50
Delivery Valve Operation
50
Non-Return Function
50
Reverse Suction Function (Dripping Prevention)
50
Injection Nozzle
51
Dumping Valve
51
At Fuel Injection
51
At Suck-Back
51
Governor Mechanism
52
At Starting
52
At Idling
52
At Idling to Maximum Speed
53
At Maximum Engine Speed
53
At Engine Stop
53
Fuel Filter
54
Fuel Limiter Apparatus Construction
54
Electrical System (EA300-E2-NB1)
55
Fan Dynamo
56
Power Generating Performance
56
Starter
57
Starting Motor
58
Overrunning Clutch
59
Armature Brake
59
Magnet Switch
60
Operation of Starter
61
When Starter Switch Is Turned to Start Position
61
When Contact Plate Is Closed
61
When Starter Switch Is Released
61
Troubleshooting
63
Servicing Specifications
67
Tightening Torques
72
Tightening Torques for Special Use Screws, Bolts and Nut
72
Tightening Torques for General Use Screws, Bolts and Nut
73
Checking, Disassembling and Servicing
74
Checking and Adjusting
74
Compression Pressure
74
Decompression Device
75
Valve Clearance
76
Top Clearance
77
Engine Oil Pressure
78
Fan Belt Tension
79
Fan Belt Damage and Wear
79
Radiator Water Tightness
80
Radiator Cap Air Leakage
80
Adjusting Ijection Timing
81
Pump Element Fuel Tightness
81
Delivery Valve Fuel Tightness
82
Fuel Injection Pressure
83
Fuel Tightness of Nozzle Valve Seat
83
Nozzle Spraying Condition
83
Glow Plug (EA300-NB1)
84
Power Generation Performance
84
Motor Test
84
Glow Plug Disconnection/Short-Circuit Test
84
Disassembling and Adjusting
85
Draining Water and Oil
85
External Components
85
Draining Coolant and Engine Oil
85
Fuel Tank and Filter
86
Wire Harness
86
Fan Cover and Starter
86
Cooling Fan
87
Injection Pipe and Nozzle Holder
88
Nozzle Heat Seal Service Removal Procedure
88
Cylinder Head Cover
88
Rocker Arm Bracket and Push Rod
89
Valve
90
Piston and Connecting Rod
91
Crankcase Cover
91
Connecting Rod Cap
92
Piston Ring and Connecting Rod
94
Gear Case
95
Oil Pump Cover and Oil Pump
96
Cam Gear and Camshaft
97
Idle Gear
97
Balancer Gear and Balancer
97
Reassembling Procedure of Gears
98
Governor Lever
98
Starting Shaft
99
Breather
99
Governor Weight
100
Flywheel and Crankshaft
101
Pulley Shaft
101
Flywheel Nut
102
Crankshaft and Main Bearing Case
102
Main Bearing Case and Crankshaft
103
Main Bearing and Crank Shaft
103
Crank Gear and Main Bearing
104
Tappet
104
End Frame
105
Brush Holder
106
Yoke
106
Armature
106
Servicing
107
Cylinder Head and Valves
107
Cylinder Head Surface Flatness
107
Cylinder Head Flaw
107
Valve Recessing
108
Width of Contact between Valve and Valve Seat
108
Cylinder Wear
108
Correcting Procedure for Valve Seat
109
Correcting Valve Seating (Valve Lapping)
109
Oil Clearance between Valve Stem and Valve Guide
110
Replacing Valve Guide
110
Valve Spring Free Length and Tension
111
Valve Spring Squareness
111
Oil Clearance between Rocker Arm Shaft and Bushing
112
Oil Clearance between Tappet and Guide
112
Push Rod Alignmet
112
Piston Skirt O.D.
113
Piston Pin Bore
113
Oil Clearance between Piston Pin and Bushing
113
Replacing Piston Pin Bushing
114
Connecting Rod Alignment
114
Piston Ring Gap
115
Clearance between Piston Ring and Ring Groove
115
Crankshaft
116
Oil Clearance between Crank Pin and Bearing
116
Use of under Size Bearing and Crank Pin Correction
117
Under Size Bearing and Crankshaft Dimension
117
End Play of Crankshaft
118
Oil Clearance between Crankshaft and Oil Filler Ring
118
Timing Gear and Camshaft
119
Timing Gear Backlash
119
Side Clearance of Idle Gear
119
Side Clearance of Cam Gear
119
Oil Clearance between Idle Gear Shaft and Bushing
120
Replacing Idle Gear Bushing
120
Oil Clearance of Camshaft
121
Intake and Exhaust Cam Height
121
Cylinder Liner ID
122
Replacing Cylinder Liner
122
Projection of Cylinder Liner
123
Clearance between Inner Rotor and Outer Rotor
123
Clearance between Outer Rotor and Pump Body
123
Clearance between Rotor and Cover
124
Continuity Across Terminal
124
Pull-In Coil (Attraction Test)
124
Holding Coil (Retension Test)
124
Shaft Thrust Gap
125
Commutator and Mica
125
Clearance between Shaft and Bushing
126
Armature Coil
126
Brush Wear
126
Field Coil
127
Bearing and Clutch
127

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Kubota EA300-E2-NB1-APU Engine Workshop Manuals

Kubota EA300-E2-NB1-APU Workshop Manual (129 pages)

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