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HR5111
Jacobsen HR5111 User Manual
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GENERAL
The repair of controls is limited to adjustment of link-
ages, straightening of bent rods or replacement of de-
fective parts and hardware.
THROTTLE (See Figure 2C-1)
Located to the right of the operator’s seat, the throttle
control is used to regulate engine speed.
Replace a
defective throttle as shown in Figure 2C-1.
CONTROLS
SECTION 2C. CONTROL
ADJUSTMENTS
2C-1
2C
Figure 2C-1. Throttle Control
Repair
18
20
Table of Contents
Section 1 1 Introduction
5
Table of Contents
5
General Cleaning
8
Safety
8
Torque Values
8
Torque Specifications
9
Standard SAE Grade #5 Screws
9
Metric
9
Fenders and Hood Removal and Installation
10
Section 2 Controls 2
11
Repair and Service Tools and Materials
13
Controls
13
Failure Analysis
15
General
15
Control Adjustments
19
General
19
Throttle
19
Traction Pedal
20
Traction Pedal Neutral Adjustment
21
Forward
22
Reverse
22
Speed Limit Adjustment
22
Reverse Sensing Switch
22
Adjustment
22
Parking Brake
23
Service Brake
23
Cruise Control Switch
23
Gauges and Instruments
24
Repair
24
Section 3 Engine
25
Repair and Service Tools and Materials
27
Failure Analysis
29
General Instructions
31
Contents
31
Cleaning and Lubrication
31
General
31
Air Cleaner
33
Radiator
34
Changing Coolant
34
Cleaning Radiator Core
34
Installation
34
Removal
34
Muffler Removal and Installation
35
Exhaust System Inspection
35
Fuel Filter Service
36
Purging the Fuel System
36
Engine Removal
37
Engine Installation
38
Section 4 Drive Train
39
Drive Train
39
Repair and Service Tools and Materials
41
Failure Analysis
43
Hydrostat Drive U-Joint
45
General
45
Service
45
Assembly
45
Disassembly
45
Axle Drive U-Joint
47
General
47
Service
47
Disassembly
47
Assembly
48
General
50
Differential Lock Assembly
50
Input Bevel Pinion
50
Disassembly
51
Reassembly
52
Break-Away Torque Adjustment
53
Reduction Gear and Drive Axle
53
Disassembly
53
General
53
Reassembly
54
Differential
55
General
55
Repair
55
Input Bevel Pinion and Ring Gear Clearance
56
General
57
Pinion and Ring Gear Backlash Adjustment
57
Section 5 Brake System
59
Brake System
61
Repair and Service Tools and Materials
61
Failure Analysis
63
Parking Brake
63
Repair
65
Adjustment
65
Service Brake
67
Repair
67
Bleeding System
67
Master Cylinder
69
Repair
69
Bleeding System
69
Section 6 Steering
71
Steering
71
Repair and Service Tools and Materials
73
Failure Analysis
75
Steering Unit
77
General
77
Removal
77
Hydraulics
77
Disassembly
78
Inspection
80
Assembly
81
Installation
87
Steer Wheel Adjustments
89
Toe-In
89
Turn Stop
89
Steering Cylinder
91
Removal
91
Disassembly
92
Inspection
92
Reassembly
93
Installation
93
Section 8 Hydraulics
103
Repair and Service Tools and Materials
107
Failure Analysis
109
General Instructions
113
General
113
Hydraulic Tube and Hose Fittings
113
37° Flare Fittings
113
Torque Recommendations
113
37° Flare Torque Recommendations
114
O-Ring Boss Fittings
114
Replacement O-Rings for O-Ring Boss Fittings
114
Special Hose Installation Instructions
114
O-Ring Boss Torque Recommendations
115
O-Ring Face Seal Torque Recommendations
115
ORS (Face Seal) Fittings
115
Replacement O-Ring for ORS (Face Seal) Fittings
115
Traction Pump
117
General
117
Removal
117
Repair
118
Inspection
118
Installation
123
Implement Pump
123
General
129
Removal
129
Disassembly
129
Inspection
131
Reassembly
131
Repair
133
Repair
137
General
143
Disassembly
143
General
149
Disassembly
152
Deck Lift
200
Section 9 Chassis
207
General
213
Removal and Installation
213
General
215
Removal and Installation
215
Removal and Installation
217
Lift Assembly
219
General
221
Removal and Installation
221
Spindle Removal and Installation
222
Section 10 Electrical System
223
Repair and Service Tools and Materials
225
Failure Analysis
227
General Instructions
233
General
233
Wire Continuity Test
233
Resistance Test
234
Battery
235
General
235
Charging a Maintenance Free Battery
235
Maintenance/Cleaning
235
Testing
236
Charging System
237
General
237
Alternator Field Test
237
Output Current
237
Alternator Input Voltage
238
No Load Test
239
Rotor Coil, Slip Ring and Brush Test
240
No Load Regulating Voltage Test
241
Regulator Test
242
Starter
243
General
243
Field Test
243
Pull in Solenoid
243
Starter Motor
244
Switches
245
General
245
Seat Switch Test
245
Ignition Switch Test (Early)
246
Ignition Switch Test (Later)
248
Implement (Mower) Switch Test (Early)
250
Wing Mower Control and Lighting Switch Test
251
Front Mower Control Switch Test
252
Wheel Drive Switch Test
253
Cruise Control Switch Test
254
Glow Plug Switch Test
255
Test Switch Test
255
Front Mower Shut-Off Switch
256
Brake Switch Test
257
Wing Mower Shut-Off Switch Test
257
Parking Brake Switch Test
257
Reverse Sensing Switch Test (Later)
257
Neutral and Reverse Sensing Switch Test
258
Horn Switch Test
259
Differential Lock Switch Test
260
Hydraulic Charge Pressure Switch Test
261
Field Test
261
Switch Test
261
Hydraulic Charge Filter Switch Test
262
Field Test
262
Switch Test
262
Hydraulic Return Oil Filter Switch Test
263
Field Test
263
Switch Test
264
Engine Oil Pressure Switch Test
264
Field Test
264
Switch Test
265
Hydraulic Oil Temperature
265
Field Test
265
Switch Test
266
Air Cleaner Service Indicator Switch Test
266
Field Test
266
Engine (Fuel) Solenoid
269
Horn
269
Cruise Engage
269
Cruise Disengage (Brake Relay)
270
Seat Delay Relay Test
271
Fuel Solenoid
273
Test
273
Differential Lock
275
Wheel Drive
275
Glow Plug Solenoid Test
277
Deck Motor Valve Solenoid
278
Circuit Breakers and Fuse
281
Circuit Breaker Test
281
Fuse Test
282
General
283
Water Temperature Gauge Test
283
Glow Plugs
285
Glow Plug Test
285
Diode Test
287
Section 11 Preventive Maintenance
301
Administration
303
PMMRS Program Kits
303
Preventive Maintenance
303
Scheduling
303
Lubrication Schedules
305
Tractor Grease Chart
305
Tractor Lubrication Chart
305
Tractor Oil Chart
305
Mower Lubrication Chart
306
Maintenance Schedule Chart
307
Tractor
307
Engine
308
Footnotes
309
Preparation for Repair
317
Pivot Housing and Push Arms
319
Carrier Assembly
320
Deck Fittings
321
Blade Spindle Assembly
322
General
322
General
325
Sharpening
325
Blade Installation
326
5
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Jacobsen HR5111 Specifications
General
Brand
Jacobsen
Model
HR5111
Category
Lawn Mower
Language
English
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