Yanmar 2QM15 Manuals

Manuals and User Guides for Yanmar 2QM15. We have 2 Yanmar 2QM15 manuals available for free PDF download: Service Manual, Operation Manual

Yanmar 2QM15 Service Manual (223 pages)

Marine Diesel Engine

Brand: Yanmar | Category: Engine | Size: 14.29 MB

Contents
4
General
5
Intake Side Viewed from Stern
6
Exhaust Side Viewed from Bow
6
Specifications
7
Principal Construction
8
Performance Curves
9
Features
10
Engine Cross-Section
11
Exterior Views
12
System Diagrams
13
Cooling System Exploded Diagram
13
Lubrication System Exploded Diagram
14
Fuel System Exploded Diagram
15
Electrical System Exploded Diagram
16
Timing Gear Train Diagram
17
Reduction Reversing Power Transmission System Diagram
18
Remote Control System Diagram
19
Standard Accessories
20
Parts Packed with the Engine/Mounted on Engine
20
Optional Accessories
21
Basic Engine
22
Cylinder Block Construction/Inspection
23
Cylinder Bore and Ledge
23
Cylinder Bore Measurement
24
Cylinder Liner Construction/Inspection
25
Cylinder Liner Bore Diameter Measurement
25
Cylinder Liner Replacement
26
Measuring Cylinder Liner Projection
26
Cylinder Head Construction
27
Cylinser Head Inspection and Measurement
28
Cylinder Head Valve Seat
28
Measuring Valve Recess
29
Dismounting and Remounting the Cylinder Head
30
Intake and Exhaust Valves, Valve Guide and Valve Spring
31
Inspecting and Measuring the Intake and Exhaust Valves/Valve Guides
31
Valve Spring
32
Precombustion Chamber and Top Clearance
33
Valve Stem Seal
33
Spring Retainer and Spring Cotter Pin
33
Intake and Exhaust Valve Rocker Arm
34
Adjusting Intake and Exhaust Valve Head Clearance
35
Decompression Mechanism
35
Disassembling and Reassembling the Cylinder Head
36
Piston
37
Piston Ass'y Construction
37
Piston Inspection/Replacement
37
Piston Pin and Piston Pin Bushing
38
Piston Rings
39
Connecting Rod
41
Connecting Rod Ass'y Construction
41
Connecting Rod Inspection
41
Crank Pin Bushing
41
Tightening the Connecting Rod Bolts
42
Crank Pin and Bushing Clearance (Oil Clearance)
42
Crank Pin Bushing Replacement Precautions
42
Connecting Rod Side Clearance
43
Piston Bushing and Piston Pin
43
Crankshaft
44
Crankshaft Ass'y and Bearing Construction
44
Crankshaft Inspection/Crank Journal and Crank Pin
44
Crankshaft Side Gap
45
Main Bearing
45
Inspecting the Thrust Metal
46
Replacing the Crank Bearing
46
Crankshaft Oil Seal
47
Oil Seal Type and Size/Inserting Precautions
47
Camshaft Construction/Inspection
48
Camshaft Ball Bearing
49
Tappets
49
Push Rods
49
Fuel Cam Assembly Precautions
50
Timing Gear Train Construction
51
Timing Gear Disassembly and Reassembly
52
Timing Gear Inspection
52
Backlash
52
Inspecting the Gear Tooth Surface/Gear Boss
53
Fuel System
54
Fuel System Construction/Diagram
55
Fuel Injection System Specifications
55
Injection Pump Construction/Diagram
56
Operation of Plunger
57
Delivery Valve Fuel Suction Collar
58
Injection Pump Disassembly
58
Inspecting Injection Pump Parts
60
Injection Pump Reassembly
60
Inspection of Injection Pump after Reassembly
62
Injection Pump Adjustment
62
Control Rack Resistance Test
62
Fuel Injection Timing
62
Setting Pump on Tester
63
Adjusting the Plunger Head Gap
63
Checking the Cylinder Injection Interval
63
Delivery Valve Oil-Tight Test
64
Plunger Pressure Test
64
Measuring the Fuel Injection Volume
64
Injection Nozzle Construction/Diagram
65
Yanmar Throttle Nozzle
65
Nozzle Operation
66
Nozzle Disassembly and Assembly
66
Injection Nozzle Inspection and Adjustment
67
Carbon and Corrosion on the Nozzle Body
67
Checking Nozzle Action/Adjusting the Nozzle Injection Pressure
67
Nozzle Seat Oil Tightness Check/Checking the Spray Condition/Inspecting the Nozzle Spring
67
Fuel Filter Construction/Diagram/Inspection
68
Fuel Feed Pump Construction/Diagram/Inspection
69
Fuel Tank Diagram
70
Governor
71
Governor Construction/Diagram
72
Governor Operation/Performance/Disassembly
74
Parts Inspection and Replacement
75
Regulator Spring
75
Sleeve
75
Governor Weight
75
Governor Lever Shaft
76
Regulator Lever Shaft
76
Injection Limiter Construction/Diagram/Inspectin/Adjustment
77
No-Load Maximum Speed Limiter Construction/Handling Precautions
78
Engine Stop Spring Diagram
79
Intake and Exhaust System
80
Intake and Exhaust System Exploded Diagram
81
Intake Silencer Construction/Inspection
82
Exhaust System
83
Exhaust Manifold and Mixing Elbow
83
Exhaust Manifold Inspection
83
Mixing Elbow Inspection
83
Breather Pipe
84
Lubrication System
85
Lubrication System Diagram
86
Lubrication System Description
87
Oil Pump Construction/Diagram/Disassembly
88
Oil Pump Inspection
89
Oil Filter Construction/Diagram/Replacement
90
Oil Pressure Regulator Valve
91
Oil Pressure Measurement
92
Cooling System
93
Cooling System Diagram
94
Cooling System Compositin
95
Cooling Water Route
95
Piping
95
Water Pump Construction and Operation
96
Cooling Water Pump (with Bilge Pump) Diagram/Specifications
97
Water Pump Disassembly/Reassembly/Handling/Inspection
98
Thermostat Construction/Operation/Inspection
100
Anticorrosion Zinc - Principles/Inspection
101
Kingston Cock Construction/Handling Precautions/Inspection
102
Bilge Strainer
103
Reduction and Reversing Gear
104
Reduction and Reversing Gear Construction/Specifications
105
Power Transmission System
106
Reduction and Reversing Gear Exploded Diagram
107
Reduction and Reversing Gear Installation
109
Reduction and Reversing Gear Operation and Maintenance
110
Lube Oil
110
Precautions/Side Cover
110
Reduction and Reversing Gear Inspection and Servicing
111
Clutch Case/Bearing
111
Gear
111
Steel Plate
111
Friction Plate
112
Pressure Plate
112
Driving Plate
113
Retainer
113
Shift Ring
114
Shift Fork and Shift Lever
114
Output Shaft
114
Damper Disc
114
Input Shaft
115
Intermediate Shaft
115
Reduction and Reversing Gear Disassembly
116
Disassembling the Clutch and Accessories
116
Disassembling the Input Shaft/Output Shaft
117
Disassembling the Intermiediate Shaft
118
Disassembling the Operating System
119
Reduction and Reversing Gear Reassembly
120
Reassembling the Output Shaft
120
Reassembling the Input Shaft/Intermediate Shaft
123
Installing the Input Shaft and Output Shaft
123
Reassembling and Installing the Operating System
124
Installing the Output Shaft Coupling
125
Remote Control System
126
Remote Control System Construction/Diagram
127
Clutch Regulator One-Handle Remote Control
128
One-Handle Remote Control Composition
128
Engine Side Installation
128
Decompression Remote Control
130
Engine Stop Remote Control
131
Electrical System
132
Electrical System Composition/Diagram
133
Electrical System Schematic Diagram
134
Battery Construction/View
135
Battery Capacity and Battery Cables
135
Battery Visual Inspection
135
Checking the Electrolyte
136
Voltage Test
136
Washing the Battery
136
Battery Charging
137
Battery Storage Precautions
137
Starter Motor Specifications and Performance/Construction
138
Starter Motor Operation/Disassembly
139
Magnetic Switch
139
Rear Cover/Brush Holder
140
Yoke
140
Armature
140
Pinion
140
Starter Motor Inspection
141
Armature/Field Coil Inspection
141
Brush/Magnetic Switch Inspection
142
Starter Motor Reassembly Precautions
143
Pinion Inspection
143
Starter Motor Testing
144
Starter Motor: Various Problems and Their Remedies
144
Alternator Specifications/Characteristics
145
Alternator Construction/Exploded Diagram
146
Alternator Diagrams and Parts List
147
Alternator Operation
148
Alternator Circuit Diagram
148
Wiring (LR135-31)
149
LR155-04 (Optional) R Terminal
149
Alternator Handling Precautions
149
Alternator Disassembly
150
Alternator Inspection and Adjustment
151
Diodes
151
Rotor
152
Stator Coil
152
Alternator Brush
152
Alternator Reassembly Precautions
153
Alternator Performance Test
153
Alternator Troubleshooting and Repair
154
Alarm Circuit
155
Oil Pressure Alarm
155
Cooling Water Temperature Alarm
155
Alarm Buzzer
156
Tachometer
156
Installation and Fitting
157
Propeller Selection
158
Engine Installation
159
Engine Room/Bed
159
Engine Dimensions
160
Engine Installation Method
161
Fixed Installation
161
Flexible Mounting
161
Engine Centering
162
Coupling Mating Face Measurement
162
Stern Equipment
163
Stern Tube Installation
163
Propeller Shaft Installation
165
Propeller Installation
165
Interior Piping and Wiring
167
Exhaust Pipe
167
Exhaust Muffler Installation
167
Cooling Water Pipe
168
Kingston Cock
168
Fuel Tank and Fuel Piping
169
Cooling Water Outlet Pipe
169
Battery Installation and Wiring
170
Instrument Panel
170
Fuel Piping
170
Remote Control Stand Installation Dimensions
171
Front Power Take-Off
172
Front Drive System
172
Front Power Take-Off Allowable Output
172
Operating Instructions
173
Fuel Oil and Lubricating Oil
174
Properties of Fuel
174
Recommended Fuels
174
Fuel Selection Precautions
174
Properties and Compositions of Fuel of Various National Standards Chart
175
Methods of Identifying Fuel Properties
176
Relationship between Fuel Properties and Engine Performance
176
Troubles Caused by Bad Fuel
176
Lubricating Oil
177
Reqired Lubricating Oil Conditions
177
Classification by Viscosity
177
Fuel Handling Precautions
177
SAE Service Classification and API Service Classification
178
Recommended Lubricating Oils
179
Engine Oil Replacement and Handling
179
Adding Oil
179
Oil Capacity
180
Engine Operating Instructions
181
Preparations before Starting the Engine
181
Fueling Up/Adding Lubricating Oil
181
Bleeding the Fuel System
181
Starting and Warm-Up
182
After Starting
183
Operation
183
Checks During Operation
183
Stopping
184
Emergency Stop
184
Storage When Moored for an Extended Period
184
Inspection and Procedures after Stopping
184
Troubleshooting and Repair
185
Troubles and Corrective Action at Starting
185
Troubles and Corrective Action During Operation
186
Disassembly and Reassembly
188
Disassembly and Reassembly Precautions
189
Disassembly and Reassembly Tools
190
Supplementary Packing Agent
195
Paint
195
Yanmar Cleaner
195
Neji Lock Super - Locking Agent for Screws
195
Disassembly Steps
196
Reassembly Steps
204
Tightening Torque
213
Main Bolt and Nut Tightening Torque
213
General Bolt and Nut Tightening Torque
214
Packing Supplement and Adhesive Application Points
215
Inspection and Service
216
Routine Inspection Chart
217
Routine Maintenance and Inspection Procedures
218
Daily Maintenance
218
Maintenance Every 50 Engine Hours
218
Maintenance Every 100 Engine Hours
219
Maintenance Every 300/500 Engine Hours
220

Yanmar 2QM15 Operation Manual (81 pages)

Diesel engine

Brand: Yanmar | Category: Engine | Size: 3.59 MB

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