Cub-cadet Yanmar 3TNV72 User Manual Page 55
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GENERAL SERVICE INFORMATION
4-20 TNV IDI Service Manual
Principal Engine Specifications
PRINCIPAL ENGINE SPECIFICATIONS
3TNV72
Engine Model 3TNV72
Version VH
Type Vertical In-line Diesel Engine
Combustion System Ball-Type Swirl Chamber
Aspiration Natural
No. of Cylinders 3
Bore × Stroke 2.835 x 2.913in. (72 x 74mm)
Displacement 55.104 cu in. (0.903L)
Max. Rated Output (Net)
RPM
(min
-1
)
3300
hp SAE 20.1
kW 15.0
PS 20.4
High Idling
RPM
(min
-1
)
3520 ± 25
Engine Weight (Dry)
with Flywheel Housing
178.6lb (81kg)
PTO Position Flywheel End
Direction of Rotation Counterclockwise Viewed from Flywheel End
Cooling System Liquid-Cooled with Radiator
Lubricating System Forced Lubrication with Trochoid Pump
Normal Oil Pressure at Rated
Engine Speed
42 - 64 psi (0.29 -0.44 MPa, 2.96 - 4.49 kgf/cm
2
)
Normal Oil Pressure at Low
Idle Speed
8.5 psi (0.06 MPa, 0.6 kgf/cm
2
) or greater
Starting System
Electric Starting - Starter Motor: DC12V, 1.6hp (1.2kW)
Dynamo: DC12V, 40A
Recommended Battery Capacity: 12V, 36 Amp-Hour (5h rating)
Dimensions (L × W × H)*
19.53 x 17.36 x 24.84 in.
(496 x 441 x 631 mm)
Engine Oil Pan Capacity
2.5 / 1.5 qt (2.4 / 1.4 L)
(Dipstick Upper Limit / Lower Limit)
Engine Coolant Capacity 0.2 gal (0.9 L) Engine Only
Standard Cooling Fan 11.81 in. (300 mm) O.D., 5 Blade Puller-Type
* Engine specifications without radiator
TNV_IDI_ServiceManual_(3TNV72 for YN only).book 20 ページ ２００７年１１月２９日 木曜日 午後２時５８分
- 3. ENGINE 1
- INDUSTRIAL 2
- TABLE OF 4
- CONTENTS 4
- TABLE OF CONTENTS 5
- WARRANTIES 8
- YANMAR LIMITED WARRANTY 10
- YANMAR WARRANTIES 11
- What Yanmar Will Do: 11
- Warranty Limitations: 12
- Warranty Modifications: 12
- Questions: 12
- Retail Purchaser Registration 12
- EMISSION SYSTEM WARRANTY 13
- WARRANTY - USA ONLY 13
- Warranty Coverage: 14
- Warranted Parts: 14
- Exclusions: 15
- Section 3 16
- 3-2 TNV IDI Service Manual 17
- 0000001en 18
- 0000002en 19
- 0000004en 20
- 0000011en 20
- 0000012en 20
- 0000007en 22
- Safety Precautions 28
- GENERAL SERVICE 36
- INFORMATION 36
- GENERAL SERVICE INFORMATION 37
- COMPONENT IDENTIFICATION 38
- 0000585A 39
- THE 97/68/EC DIRECTIVE 40
- CERTIFIED ENGINES 40
- ENGINE FAMILY 40
- DIESEL FUEL 44
- 0000002A 47
- 0000649A 48
- Engine Oil Viscosity 49
- Checking Engine Oil 49
- Adding Engine Oil 49
- SPECIFICATIONS 53
- Engine General Specifications 54
- ENGINE SERVICE INFORMATION 56
- 0000023enTNVIDISM 57
- ABBREVIATIONS AND SYMBOLS 59
- UNIT CONVERSIONS 60
- PERIODIC 62
- MAINTENANCE 62
- PERIODIC MAINTENANCE 63
- 0000079en 72
- Introduction 73
- 0000060en 76
- 0000024enTNVIDISM 77
- 0000025en 84
- 0000067A 85
- A DANGER 86
- 0000071A 90
- 0000046en 91
- Section 6 100
- 6-2 TNV IDI Service Manual 101
- 0000013en 102
- 0000010en 102
- 0000014en 102
- 0000003en 102
- 0000009en 102
- Before You Begin Servicing 103
- INTRODUCTION 104
- CYLINDER HEAD SPECIFICATIONS 104
- Push Rod 105
- Valve Spring 105
- Rocker Arm and Shaft 106
- Camshaft 106
- Idler Gear Shaft and Bushing 107
- Timing Gear Backlash 107
- Crankshaft 107
- Crankshaft Reconditioning 108
- Thrust Bearing 108
- TNV IDI Service Manual 109
- Piston Ring 110
- Connecting Rod 111
- CYLINDER BLOCK SPECIFICATIONS 112
- SPECIAL TORQUE CHART 113
- SPECIAL SERVICE TOOLS 114
- Special Service Tools 115
- MEASURING INSTRUMENTS 116
- Measuring Instruments 117
- CYLINDER HEAD 119
- 0000080en 120
- Cylinder Head 121
- Removal of Glow Plugs 121
- Removal of Cylinder Head 122
- Removal of Valve Guides 123
- 0000119en 124
- 0000120en 124
- Inspection of Valve Guides 125
- Inspection of Cylinder Head 125
- Inspection of Valve Springs 127
- Reassembly of Cylinder Head 128
- IMPORTANT 129
- Clearance 133
- CYLINDER BLOCK 135
- Components 137
- Cylinder Block 139
- Removal of Oil Pan 139
- Removal of Camshaft 140
- 0000088en 141
- Removal of Crankshaft 143
- Inspection of Cylinder Block 146
- Wrist Pin 147
- Inspection of Connecting Rod 148
- Inspection of Tappets 149
- Reconditioning the Crankshaft 150
- Inspection of Camshaft 151
- Honing and Boring 152
- Reassembly of Crankshaft and 153
- Piston Components 153
- E106 R 154
- 80 80 154
- Installation of Crankshaft 156
- Installation of Pistons 157
- Installation of Timing Gears 160
- Installation of Oil Pan 161
- Final Assembly of Engine 161
- FUEL SYSTEM 162
- 0000146en 167
- FUEL SYSTEM SPECIFICATIONS 168
- FUEL SYSTEM DIAGRAM 170
- FUEL SYSTEM COMPONENTS 171
- 0000047en 172
- Fuel Injection Lines 173
- FUEL INJECTION PUMP 174
- CHECKING AND ADJUSTING 180
- FUEL INJECTION TIMING 180
- 0000592A 183
- FUEL INJECTORS 184
- 0000172en 185
- 0000008en 186
- Injectors 188
- Reassembly of Fuel Injectors 190
- COOLING SYSTEM 192
- 0000016en 194
- A WARNING 195
- A CAUTION 195
- COOLING SYSTEM DIAGRAM 196
- ENGINE COOLANT PUMP 197
- COMPONENTS 197
- ENGINE COOLANT SYSTEM 198
- Cleaning and Inspection 199
- 0000006en 201
- LUBRICATION 202
- LUBRICATION SYSTEM 203
- 0000015en 204
- 0000005en 205
- 0000030en 205
- OIL PUMP SERVICE INFORMATION 206
- LUBRICATION SYSTEM DIAGRAM 208
- CHECKING ENGINE OIL 209
- PRESSURE 209
- TROCHOID OIL PUMP 209
- Disassembly of Oil Pump 210
- Reassembly of Oil Pump 212
- STARTER MOTOR 214
- 0000034en 217
- 0000054en 217
- 0000055en 217
- 0000056en 217
- STARTER MOTOR INFORMATION 218
- STARTER MOTOR SPECIFICATIONS 219
- STARTER MOTOR TROUBLESHOOTING 220
- STARTER MOTOR COMPONENTS 221
- 0000140A 223
- 0000142A 223
- 0000144A 224
- Reassembly of Starter Motor 230
- No-Load Test 232
- Installation of Starter Motor 233
- ALTERNATOR 234
- 0000035en 237
- ALTERNATOR SPECIFICATIONS 239
- DYNAMO SPECIFICATIONS 240
- ALTERNATOR TROUBLESHOOTING 241
- ALTERNATOR COMPONENTS 242
- 0000036en 243
- 0000037en 243
- Temperature at 77˚F (25˚C) 244
- Reassembly of Alternator 247
- Installation of Alternator 249
- DYNAMO COMPONENT LOCATION 250
- DYNAMO WIRING DIAGRAM 251
- OPERATION OF DYNAMO 251
- DYNAMO STANDARD OUTPUT 252
- Disassembly of Dynamo 254
- Reassembly of Dynamo 254
- Installation of Dynamo 255
- ELECTRIC WIRING 256
- 0000050en 258
- 0000051en 258
- 0000057en 258
- 0000058en 258
- 0000059en 258
- ELECTRIC WIRE RESISTANCE 259
- BATTERY CABLE RESISTANCE 260
- TROUBLESHOOTING 264
- Standard Compression Pressure 268
- QUICK REFERENCE TABLE 269
- FOR TROUBLESHOOTING 269
- Troubleshooting Charts 270
- WIRING DIAGRAM 283
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