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Simplicity Broadmotor Series User Manual
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Service & Repair Manual
Broadmoor Series
MANUF
A
CTURING, INC
.
500 N Spring Street / PO Box 997
P
ort W
ashington, WI 53074-0997 USA
© Cop
yright 2001 Simplicity Manufacturing, Inc.
All Rights Reser
ved.
Printed in USA.
Rev 4/2001
TP 500-2493-00-BM-SMA
Not
for
Reproduction
2
Table of Contents
1 General Information
3
Default Chapter
3
Table of Contents
3
Models Covered
4
Introduction
5
Manual Content
5
Safety Rules
6
Safety Rules - Service and Maintenance
8
General Repair Information
11
Bearings & Bushings
11
Belts & Pulleys
11
Electrical Parts
11
Fasteners & Hardware
12
Genuine Replacement Parts
12
Hydraulic Parts
12
Paint
12
Required Tools & Equipment
12
Systems Checks
12
Torque Specifications
13
Specifications
14
3 Maintenance
21
Storage
22
Temporary
22
Long Term
22
Starting after Long Term Storage
22
Maintenance Schedule
23
Checking Tire Pressures
23
Check / Change Transmission Oil
24
Accessing the Engine
25
Fuel Filter Replacement
25
Oil & Filter Change
25
Check / Change Air Filter
25
Inspect & Replace Spark Plugs
25
Lubrication
26
Lubricate Rear Axles
27
Battery Maintenance
28
Servicing the Mower Blades
29
Perform Safety Checks
30
Functional Tests
30
Dash Safety Lights Test
30
Mower Blade Stopping Check
30
Seat Switch Connection
30
Blade Brake Check
31
4 Adjustments
33
Steering Gear Adjustment
34
Steering Wheel Adjustment
34
Blade Brake Check
35
PTO Clutch Adjustment
35
Brake Spring Adjustment
36
Foot Pedal Height Adjustment
36
Cruise Control Release Adjustment
37
Internal Neutral Adjustment
37
Transmission Purging
38
Mower Leveling
39
5 Belt Replacement
41
Transmission Drive Belt Replacement
42
Remove the Old Belt
42
Install the New Belt
42
38" Mower Drive Belt Replacement
43
Mower Belt Replacement
43
44" & 50" PTO Belt Replacement
44
44" & 50" Arbor Drive Belt Replacement
45
6 Common Service Procedures
47
Mower Deck Removal & Installation
48
Removing the Mower Deck
48
Installing the Mower Deck
49
Mower Blade Removal & Installation
50
Removal
50
Elevating the Tractor
51
Elevating Rear End for Safe Service
51
Elevating Front End for Safe Service
51
Rear Wheel Removal & Installation
52
Front Removal & Installation
53
Battery Service
54
Checking Battery Voltage
54
Charging a Completely Discharged Battery
54
Jump Starting with an Auxiliary Battery
54
Battery Removal & Installation
56
Removing the Battery
56
Installing the Battery
56
Burnishing the Electric PTO Clutch
56
7 Electrical System Service
57
General Information
58
Section Contents
58
System Description
58
Principles of Operation
59
Safety Interlock System
59
Checking out the System
59
Model Variation Notes
59
Exploded View Diagrams
60
Ignition Switch Service Bulletin
64
Bulletin
64
Linear Diagrams
65
Linear Circuit Diagrams
66
Common “No Start” Circuit Tests
68
Common "No Start" Circuit Tests
68
Cranking Circuit Test
68
Safety Shut down Test
70
Component Location and Replacement
72
Troubleshooting
76
Component Tests
80
Check/Clean Wires and Connectors
80
Check/Clean Ground Cable
80
Battery Tests
81
Isolated Battery Voltage Check
82
Charging Voltage Check
82
Interlock Module
82
Ignition Switch Tests
82
Test Solenoid
84
Solenoid Bench Test
84
PTO Switch Test
86
Cruise Control Switch Test
87
Brake Pedal Switch Tests
87
Seat Switch Safety Interlock Test
88
Seat Switch Test
88
Circuit Breaker Test
89
PTO Clutch
89
Headlight Switch Test
89
Fuel Solenoid Test
89
Voltage Regulator
89
Alternator
89
8 Steering & Front Wheel Repair
91
Required Tools & Equipment
92
Elevating Front of Unit for Safe Service
92
General
92
Front Wheel Repair
93
Removal & Installation
93
Inspection
93
Steering Group Assemblies - Complete
94
Lower Steering Group
95
LH Spindle Repair
95
RH Spindle / Steering Arm Repair
97
Reassembly
98
Tie Rod Repair
99
Upper Steering Group
100
Steering Wheel Removal
101
Steering Shaft Removal
102
Drag Link Removal
104
9 Torque Generator Repair
105
Exploded View Diagram
106
General Information
107
Tear-Down and Reassembly
108
Tear down
108
Reassembly
110
10 Hand Controls Service
113
Attachment Lift Lever Service
114
Lift Lever Grip Replacement
114
Upper Lift Rod Replacement
114
Lower Lift Rod Replacement
114
Engine Choke Control
115
Choke Cable Replacement
115
Throttle Control Service
116
Throttle Knob Service
116
Throttle Assembly Replacement
116
Parking Brake Control Service
117
Knob Removal
117
Parking Brake Rod Replacement
117
11 Drive Controls Service
119
Brake System Components
120
Parking Brake Mechanism
121
General Information
121
Brake Component Replacement
121
Rear Brake Rod Replacement
121
Idler Assembly Service
122
Brake Pedal Pad Replacement
122
Brake Pedal Assembly Removal & Installation
122
Differential Lock Control Service
123
Shock Absorber Replacement
123
Cruise Control System Components
124
Cruise Control Lock Mechanism
125
Cruise Component Replacement
125
Plate and Pad Replacement
125
Lock Plate Replacement
125
Foot Pedal Assembly Service
126
12 Hand Controls Service
127
Manual Lift Lever Service
132
General
132
Latch Rod & Spring Replacement - All Manual Lift Models
132
Lift Lever Removal - All Manual Lift Models
133
Lift Cable & Pulley Replacement
134
Engine Choke Control (Select Units)
135
Choke Cable Replacement
135
Throttle Control Service
136
Throttle Knob Service
136
Throttle Assembly Replacement
136
Parking Brake Control Service
136
Parking Brake Rod Replacement
136
Hydraulic Lift Control Service
137
Lift Control Knob Replacement
137
Lift Control Lever Replacement
137
13 Hood & Dashboard Service
139
Hood & Dashboard Removal
142
Remove the Hood
142
Remove the Battery
142
Remove the Dashboard
143
Hood & Dashboard Installation
145
Reinstall Dashboard
145
Reinstall the Battery
146
14 Transmission Tear-Down
147
Exploded View Diagrams
149
K71
149
General Information
152
Introduction
152
Specifications
152
Disassembly
153
Preparation
153
Assembly
160
Preparation
160
Disassembly
165
15 Pto Clutch Service
169
General
170
Troubleshooting
170
Adjustment
171
Blade Brake Check
171
PTO Clutch Electrical Tests (Bench Tests)
172
Check Resistance
172
Check for Short Circuits
172
Check Engagement
172
PTO Clutch Replacement
173
Removal
173
Installation
173
Burnishing the Electric PTO Clutch
173
16 Mower Deck Service
175
Default Chapter
176
38" Mower Deck - Housing, Arbors, & Blades
176
38" Mower Deck - Belt & Hitch Group
178
38" Mower Deck - Height Adjustment & Roller Group
180
44" & 50" Mower Decks - Housing, Arbors & Blades
183
50" Mower Decks - Belt & Hitch
184
44" Mower Deck - Height Adjustment & Rollers
186
50" Mower - Height Adjustment & Rollers
188
Mower Deck Repair
190
Mower Removal & Installation
190
Mower Drive Belt & PTO Belt Replacement
190
Idler Pulley Repair - 38" Decks
190
Idler Pulley Service - 44" & 50" Decks
191
Arbor Repair
192
Arbor Assembly Removal - All Models
192
Arbor Disassembly - 38" Mowers
193
Arbor Assembly - 38" Mowers
194
Arbor Disassembly - 44" & 50" Mowers
195
Arbor Assembly - 44" & 50" Mowers
196
4
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Simplicity Broadmotor Series Specifications
General
Brand
Simplicity
Model
Broadmotor Series
Category
Tractor
Language
English
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