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Toro
Lawn Mower
Groundsmaster 4500-D
Service Manual
Page 345
Toro Groundsmaster 4500-D - Page 345
347 pages
Manual
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Page
9
-
19
(Models
30881
and
30882)
Engine
Wire
Harness
Diagram
DRAWING
DESIGNATIO
NS
IN
THIS
CHAPTER
NOTE:
THIS
DRAWING
IDENTIFIES
WIRE
GAUGE
SIZE
AND
WIRE
COLOR.
REFER
TO
ELECTRICAL
FOR
ADDITIONAL
INFORMA
TION.
Groundsmaster
4500
-
-
D/4700-
-
D
344
346
Table of Contents
Main Page
This Page Is Intentionally Blank.
3
Default Chapter
1
Service Manual
1
Table of Contents
3
Chapter 1 - Safety
6
General Safety Instructions
6
Before Operating
6
While Operating
7
Maintenance and Service
8
Jacking Instructions
9
Safety and Instruction Decals
10
Chapter 2 - Product Records and Maintenance
11
Maintenance
11
Product Records
11
Equivalents and Conversions
12
Torque Specifications
13
Chapter 3 Yanmar Diesel Engine
17
Default Chapter
17
General Information
17
Manual
17
Chapter 4 - Hydraulic System
18
Service and Repairs
17
Specifications
17
YANMAR TNV (Tier 4) SERIES SERVICE MANUAL
17
YANMAR TNV (Tier 4) SERIES TROUBLESHOOTING
17
YANMAR TNV (Tier 4I) SERIES SERVICE MANUAL
17
Specifications
18
Models 30873 and 30874
18
General Information
20
Models 30881 and 30882
20
Operator's Manuals
20
Stopping the Engine
20
Yanmar Service and Troubleshooting Manuals
20
Engine Electronic Control Unit (ECU)
21
Yanmar Engine: Models 30873 and 30874
22
Yanmar Engine: Models 30881 and 30882
22
Air Cleaner System
24
Fuel System
26
Check Fuel Lines and Connections
27
Drain and Clean Fuel Tank
27
Fuel Tank Installation
27
Fuel Tank Removal
27
Priming the Fuel System
27
Radiator and Oil Cooler Assembly
28
Engine
32
Engine Removal
33
Engine Installation
34
Pump Adapter Plate
36
Exhaust System (Models 30881 and 30882)
38
Towing Traction Unit
44
Hydraulic Hoses
46
Hydraulic Schematics
50
Hydraulic Flow Diagrams
52
Mow Circuit
65
Cutting Deck Blade Braking
66
Steering Circuit
69
Engine Cooling Fan Circuit
71
Special Tools
72
Measuring Container
75
Troubleshooting
77
Hydraulic System Problems
77
Traction Circuit Problems
78
Steering Circuit Problems
80
Testing
84
Rear Traction Circuit Relief Pressure
92
Adjustments
112
Service and Repairs
113
Check Hydraulic Lines and Hoses
114
Gear Pump
118
Gear Pump Service
122
Rear Axle Motor
136
Front Wheel Motors
138
Rear Axle and Front Wheel Motor Service
140
Cutting Deck Motor
142
Cutting Deck Motor Service
144
Deck Control Manifold
148
Steering Control Valve
154
Steering Control Valve Service
156
Steering Cylinder
158
Steering Cylinder Service
160
Engine Cooling Fan Motor
162
Engine Cooling Fan Motor Service
166
Fan Control Manifold
168
Fan Control Manifold Service
170
Lift Control Manifold
172
Lift Circuit Junction Manifold
178
Lift Cylinder Service
186
Hydraulic Reservoir
188
Chapter 5 Electrical System
193
General Information
194
Operator's Manual
194
Electrical Drawings
194
Toro Electronic Controllers (TEC)
194
Yanmar Engine Electronic Control Unit (ECU)
195
CAN--Bus Communications
196
Yanmar Engine Electrical Components
196
Special Tools
198
Infocenter Display
200
Main Menu Screen
202
Faults Screen
202
Diagnostics Screen
204
About Screen
206
Troubleshooting
207
Operator Advisories
207
Fault Codes
208
Starting Problems
210
Cutting Deck Operating Problems
212
Cutting Deck Lift/Lower Problems
213
Electrical System Quick Checks
215
Battery Test (Open Circuit)
215
Charging System Test
215
Check Operation of Interlock Switches
215
Adjustments
216
Traction Pedal Adjustment
216
Traction Pedal Position Sensor Calibration
218
Component Testing
219
Ignition Switch
219
Fuses
220
Fusible Link Harness
221
PTO Switch
222
Hi/Low Speed, Engine Speed Request and Cutting Deck Lift Switches
223
Headlight Switch
224
Seat Switch
225
Parking Brake Switch
226
Cutting Deck Position Switches
227
Relays with Four (4) Terminals
228
Relays with Five (5) Terminals
230
Traction Pedal Position Sensor
231
Toro Electronic Controllers (TEC)
232
Hydraulic Solenoid Valve Coils
234
Piston (Traction) Pump Control Solenoid Coils
236
Hydraulic Oil Temperature Sender
237
Fuel Pump (Models 30873 and 30874)
238
Fuel Pump (Models 30881 and 30882)
239
CAN--Bus Termination Resistor
240
Diode Assemblies
241
Resistor Assemblies
241
Service and Repairs
242
Battery Care
242
Battery Storage
242
Battery Service
243
Battery Inspection and Maintenance
243
Battery Removal and Installation
243
Battery Testing
244
Battery Charging
245
Chapter 6 Axles, Planetaries and Brakes
247
Specifications
248
General Information
249
Operator's Manual
249
Adjustments
250
Planetary Wheel Drive End Play
250
Service and Repairs
252
Brake Assembly
252
Brake Inspection and Repair
256
Planetary Wheel Drive Assembly
258
Planetary Wheel Drive Service
260
Rear Axle Assembly
264
Rear Axle Service
268
Bevel Gear Case and Axle Case
270
Differential Shafts
274
Axle Shafts
275
11. Input Shaft/Pinion Gear
276
Differential Gear
278
Pinion Gear to Ring Gear Engagement
281
Chapter 7 Chassis
283
General Information
284
Operator's Manual
284
Cutting Deck Identification
284
Service and Repairs
286
Steering Column
286
Traction Pedal
288
Console Arm
290
Lift Arms for Cutting Decks #1, #4 and #5
292
Lift Arms for Cutting Decks #2 and #3
294
Lift Arms for Cutting Decks #6 and #7 (Groundsmaster 4700--D)
296
Operator Seat
298
Operator Seat Service
300
Operator Seat Suspension
302
Hood
304
Chapter 8 Cutting Decks
307
Default Chapter
308
Specifications
308
General Information
309
Operator's Manual
309
Troubleshooting
310
Factors that Can Affect Quality of Cut
310
Special Tools
311
Adjustments
312
Blade Stopping Time
312
Service and Repairs
314
Blade Spindle Assembly
314
Blade Spindle Service
316
Rear Roller
318
Rear Roller Service
320
Front Roller Service
322
Cutting Deck Carrier Frame
324
Chapter 9 - Foldout Drawings
327
Electrical Drawing Designations
327
Electrical Schematics
327
Hydraulic Schematics
327
Wire Harness Drawings
327
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