Name: Textron JACOBSEN R-311 69166
Brand: Textron
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4-14 4203781 First Edition

ELECTRICAL

Electrical Schematic

Continued

Figure 4-5

Blk Blk

Blk

Red Red

Grn/Wht

Lt Grn

Lt Blu

Wht

Org Org

Blk

Blk Blk

+12V

Gnd

Hour

Meter

Org

Fuel

Level

Sensor

Right

Turn

Indicator

E10

Left

Turn

Indicator

Glow

Plug

Light

Blk

BlkBlkBlk BlkBlk

Tan

+12V

SignalGnd

Fuel

Gauge

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Lt Blu

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TN2284

Table of Contents8
Introduction9
Prepare for the Job9
Safety Notices9
Safety Label Locations9
Inspect Safety Labels13
Keep Work Area Clean13
Keep Work Area Well Ventilated13
Use Proper Eye and Face Protection13
Park Mower Safely13
Use Lifting Equipment Safely14
Support Machine Securely14
Use Compressed Air and Air Tools Safely14
Service Tires Safely15
Handle Fuel Safely15
Store Volatile and Hazardous Materials Safely15
Handle Chemical Products Safely16
Service Hydraulic System Safely16
Service Cooling System Safely16
Service Electrical Components Safely17
Dispose of Waste Materials Safely17
Mower Identification19
Serial Number19
Engine Serial Number20
Optional Machine Accessories20
Component Location21
Specifications23
Quick Reference Specifications23
Specifications31
General Engine Specifications31
Repair Specifications31
Component Location32
Kubota V2203-M-E3B32
Checks and Adjustments34
Throttle Cable34
Purging the Fuel System35
Repair36
Fan Belt36
Air Cleaner Assembly37
Muffler37
Exhaust Manifold38
Radiator/Oil Coolers39
Thermostat43
Throttle Cable and Control Lever44
Fuel Filter45
Fuel Pump46
Engine47
Engine Service50
Specifications55
Test and Adjustment Specifications55
Theory and Diagnostic Information56
Electrical Component Symbols56
Electrical Schematic Component Identification59
Electrical Schematic61
Theory of Operation and Sub-Circuit Schematics69
Power Circuit-Theory of Operation69
Power Circuit Schematic70
Glow Plug Circuit-Theory of Operation77
Glow Plug Circuit Schematic78
Start Circuit-Theory of Operation79
Start Circuit Schematic80
Run Circuit-Theory of Operation81
Run Circuit Schematic-On Seat82
Run Circuit Schematic-Off Seat83
Charging Circuit-Theory of Operation85
Charging Circuit Schematic86
Mow Circuit-Theory of Operation88
Mow Circuit Schematic89
Four Wheel Drive Circuit-Theory of Operation92
Four Wheel Drive Circuit Schematic93
Four Wheel Drive Reverse Circuit Schematic94
Cruise Control-Theory of Operation96
Cruise Control Circuit Schematic97
Cruise Control Disable Circuit Schematic99
Work Lights Circuit-Theory of Operation102
Work Lights Circuit Schematic103
Instrumentation Circuit-Theory of Operation105
Instrumentation Circuit Schematic107
Horn/Test Circuit-Theory of Operation110
Horn/Test Circuit Schematic111
Troubleshooting114
Glow Plug Circuit114
Start Circuit114
Run Circuit115
Charging Circuit115
Mow Circuit115
Four Wheel Drive Circuit117
Cruise Control Circuit118
Work Light Circuit118
Instrumentation Circuit119
Horn and Audible Alert Circuit123
Component Testing124
Electrical System and Component Testing124
Circuit Breakers Test125
Thermal Circuit Breakers Test125
Relays Test126
Time Delay Relay Test126
Key Switch Test127
Horn/Test Switch Test127
Seat Switch Test128
Glow Plug Switch Test128
Front Limit Switch Test129
PTO Switch Test129
Front Mow Enable Switch Test130
Wing Mow Enable and Light Switches Test130
Cruise Control Switch Test132
4WD Switch Test132
Micro Switches Test133
Fuel Level Sensor Test134
Solenoids Test134
Fuel Shutoff Solenoid Test135
Diodes Test136
Fuel Pump Test136
Repair137
Battery137
Alternator137
Starter Motor138
Instrument Panel138
Circuit Breakers139
Thermal Circuit Breakers139
Relays140
Time Delay Relay141
Key Switch141
Park Brake Switch142
Brake Pedal Switch143
Horn/Test Switch143
Seat Switch144
Glow Plug Switch145
PTO Switch146
Right and Left Wing Proximity Switches147
Front Limit Switch147
Rocker Switches148
Reverse Kick-Out Switch149
Air Filter Pressure Switch150
Return Filter Pressure Switch150
Hyd Oil Temp Switch151
Charge Filter Pressure Switch152
Engine Oil Pressure Switch152
Engine Temperature Sensor153
Engine Coolant Temp Switch153
Low Charge Pressure Switch154
Mow Solenoids155
4WD Solenoids156
Glow Plug Solenoid157
Fuel Shutoff Solenoid158
Cruise Control Magnet158
Indicator Lights159
Diodes160
Engine Temperature Gauge160
Volt Meter and Fuel Gauge161
Hour Meter161
Horn162
Fuel Level Sensor162
Specifications166
Test and Adjustment Specifications166
Repair Specifications166
Portable In-Line Filter167
Component Location168
Theory of Operation and Sub-Circuit Schematics170
Traction Circuit-Neutral Schematic and Theory of Operation170
Traction Circuit-Neutral Schematic170
Traction Circuit-Forward 2WD Schematic and Theory of Operation174
Traction Circuit-Forward 2WD Schematic175
Traction Circuit-Reverse 2WD Schematic and Theory of Operation178
Traction Circuit-Reverse 2WD Schematic179
Traction Circuit-Forward 4WD Schematic and Theory of Operation182
Traction Circuit-Forward 4WD Schematic183
Traction Circuit-Reverse 4WD Schematic and Theory of Operation186
Traction Circuit-Reverse 4WD Schematic187
Troubleshooting189
Tests and Adjustments191
Traction Linkage Adjustments191
Weight Transfer Adjustment194
Field Test Procedures195
Preliminary Checks195
Charge Pump Test195
Traction System Test195
Instrument Test Procedures196
Instrument Test Overview196
Charge Pressure Test196
Charge Pump Test197
Traction System Test199
Traction Pump Tests202
Front Axle Motor Test204
Repair209
Front Axle U-Joint209
Traction Pump U-Joint210
Traction Pump211
4WD Valve214
Control Valve216
Front Axle Motor220
Front (Drive) Axle Assembly222
Rear Wheel Motor226
Traction Linkage230
Component Location235
Hydraulic Schematic237
Theory of Operation and Diagnostic Information243
Steering Circuit Schematic and Theory of Operation243
Steering Circuit Schematic244
Raise Circuit Schematic and Theory of Operation245
Raise Circuit Schematic246
Lower Circuit Schematic and Theory of Operation247
Lower Circuit Schematic248
Mower Deck Float Circuit Schematic and Theory of Operation249
Mower Deck Float Circuit Schematic249
Mow Circuit (ON) Schematic and Theory of Operation251
Mow Circuit (ON) Schematic252
Mow Circuit (OFF) Schematic and Theory of Operation253
Mow Circuit (OFF) Schematic254
Field Test Procedures255
Front Lift Cylinders Leakage Test255
Wing Lift Cylinders Leakage Test255
Power Steering Circuit Test256
Cutting Unit System Test256
Instrument Test Procedure258
Instrument Test Overview258
Front Cutting Unit Circuit Test259
Front Cutting Unit Pump Test260
Front Cutting Unit Deck Valve Test262
Adjust Front Cutting Unit Deck Valve System Relief Valve Pressure264
Front Cutting Unit Motors Test264
Right Wing Cutting Unit Circuit Test268
Right Wing Cutting Unit Pump Test270
Right Wing Cutting Unit Deck Valve Test271
Adjust Right Wing Cutting Unit Deck Valve System Relief Valve Pressure273
Right Wing Cutting Unit Motors Test274
Left Wing Cutting Unit Circuit Test277
Left Wing Cutting Unit Pump Test278
Left Wing Cutting Unit Deck Valve Test280
Adjust Left Wing Cutting Unit Deck Valve System Relief Valve Pressure282
Left Wing Cutting Unit Motors Test283
Lift/Steer Relief Valve Pressure Test285
Lift/Steer Pump Test286
Repair289
Hydraulic Oil Tank-Drain Procedure289
Gear Pump289
Deck Motors293
Lift Valve293
Right Deck Valve295
Left Deck Valve296
Front Deck Valve296
Hydraulic Oil Return Filter298
Charge Pressure Filter298
Front Lift Cylinders299
Wing Lift Cylinders303
Hydraulic Oil Cooler306
Hydraulic Oil Tank307
Component Location312
Tests and Adjustments313
Steering Linkage Adjustments313
Steering Relief Valve Pressure Test315
Steering Leakage Test316
Repair317
Steering Tower Cover317
Steering Wheel317
Steering Unit318
Steering Column324
Steering Tower325
Steering Cylinder326
Tie Rod Assembly329
Rear Axle331
Specifications337
Repair Specifications337
Component Location338
Tests and Adjustments339
Deck Leveling Adjustment339
Deck Rake Adjustment339
Final Adjustments341
Troubleshooting342
Mechanical Troubleshooting342
Quality of Cut Troubleshooting343
Repair351
Deck Motor351
Blade353
Front Deck354
Front Lift Arms356
Wing Decks358
Wing Deck Lift Arms360
Swivel Caster Wheels362
Fixed Caster Wheels363
Anti-Scalp Wheels364
Checks and Adjustments369
Brake Pedal Adjustment369
Repair369
Canopy369
Front Cowling370
Ops371
Hood371
Fuel Tank372
Seat and Seat Platform375
Footrest Floor378
Floorboard379
Utility Box380
Left Fender381
Right Fender382
Work Light Kit382
Rear Wheels383
Front Wheels383
Brake Caliper Assembly385
Front Wheel Hubs and Rotors386

Brand	Textron
Model	JACOBSEN R-311 69166
Category	Lawn Mower
Language	English

Textron JACOBSEN R-311 69166 User Manual

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