Cub-cadet Yanmar 3TNV72 User Manual Page 241
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- TROUBLESHOOTING
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ALTERNATOR
11-8 TNV IDI Service Manual
Alternator Troubleshooting
ALTERNATOR TROUBLESHOOTING
Turn key switch ON.
Does battery indicator
turn ON?
At idle, does battery
indicator turn OFF?
Does battery indicator
come ON?
Ground drive machine side
L terminal. Does battery
indicator turn on?
Does battery indicator
come ON?
Start Engine.
ON
OFF
OFF OFF
OFF
ON
ON
OFF
Battery indicator ON.
Disconnect harness L terminal
and IG terminal at alternator
Increase engine speed to
1500 rpm. Turn light switch ON.
With engine running at 1500
rpm, measure voltage at
battery.
Notes:
1) Use a fully charged battery
2) DC voltmeter: 0 to 30 V, 0.5 class
3) The check method is also applicable to the bench test
With engine idling,
measure voltage at L
terminal and at battery.
With engine idling,
turn light switch ON.
Replace the battery indicator.
Battery indicator is available from
driven machine manufacturer.
Battery indicator flashes.
Battery voltage
is between 13
and 15 volts.
Battery voltage greater
than 15.5 volts.
Battery voltage minus
L terminal voltage is
greater than 0.5 volt.
Battery voltage minus
L terminal voltage is
less than 0.5 volt.
Battery indicator
is dim.
Battery indicator
is dim.
Inspect rotor assembly and
brushes.
Excessive voltage drop between
BAT and batt ( + side) terminal.
Check condition of L terminal.
Inspect diode negative (-) side.
Replace regulator.
Inspect auxiliary diode.
Not abnormal.
Inspect or replace V-belt.
Inspect alternator.
Inspect diode positive (+) side.
TNV_IDI_ServiceManual_(3TNV72 for YN only).book 8 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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