Toro 20921B Manuals

Manuals and User Guides for Toro 20921B. We have 1 Toro 20921B manual available for free PDF download: Service Manual

Toro 20921B Service Manual

Toro 20921B Service Manual (144 pages)

WALK BEHIND POWER MOWER DRIVE SYSTEMS

Brand: Toro | Category: Lawn Mower | Size: 5.66 MB

Table of Contents

About this Manual
3
Table of Contents
5
Worm Drive Transmission

20
- Internally Clutched
  20
  - Description
    20
  - Lubrication
    21
  - The Shifting Process
    21
  - Removal & Installation (Front Wheel Drive Applications)
    22
  - Disassembly
    23
  - Assembly
    25
  - Controls
    27
  - Adjustment
    28
- CONSTANT MESH Description
  29
  - Removal & Installation
    30
  - Controls
    31
- Wheel Clutch
  32
Single Speed Spur/Bevel Gear Transmission

33
- Gear Case Assembly
  34
  - Description
    35
  - Lubrication
    35
- Transmission Internal Repair
  36
  - Spur/Bevel Gear Transmission
    36
    
    Assembly
    37
Single Speed Bevel Gear Transmission

39
- Bevel Gear Transmission
  40
- Exploded View - Single Speed Bevel Gear Transmission
  40
- General Information
  41
- Front Axle & Transmission Assembly
  42
- 22" Front Wheel Drive Models
  43
  - Remove Transmission
    43
  - Transmission Disassembly
    45
  - Transmission Assembly
    45
  - Assembly Tips
    46
  - To Replace Self-Propelled Drive Belt
    47
  - Belt Service - Front Wheel Drive Models
    47
  - 22" Toro & Lawn-Boy Rear Wheel Drive Models
    48
  - Rear Axle Disassembly
    53
  - Transmission Disassembly
    54
  - Transmission Assembly
    54
  - Axle Assembly Tips
    55
- Lawn-Boy Insight Transmission Remove & Replace
  57
  - Tranmission Removal & Belt Replacement
    58
  - Lawn-Boy Insight
    58
  - Transmission Disassembly
    62
  - Transmission Assembly
    62
  - Axle Assembly Tips
    62
  - Transmission Installation Tips
    63
Three Speed Transmission

65
- Gear Case Assembly
  66
- Operation
  67
  - Input System
    67
  - OPERATION Input System
    67
  - Speed Reduction System
    67
  - Gear Selection System
    68
  - Removal - Toro Vacu Power/Lawn-Boy Medallion Models
    69
  - Removal - Recycler/Rear Bagger Chassis
    70
  - Alternate Method
    70
  - Disassembly
    70
  - Transmission - Assembly
    71
  - Output Shaft Assembly
    72
  - Input Shaft Assembly
    73
  - Intermediate Shaft Assembly
    74
  - Installation
    74
  - Special Assembly Notes for Toro Vacu Power/Lawn-Boy Medallion
    75
- Troubleshooting Tips - 3 Speed Transmission
  76
  - Hard Shifting
    76
  - Slipping Gears
    76
Wheel Pinion Clutch

77
- Gear Case & Wheel Assembly, Rocking Key Style
  78
- Spring Ratchet Style
  85
  - Servicing the System
    85
- Wheel Pinion Service
  85
- Blade Brake Clutch System
  88
  - Control Box Operation
    88
  - Description
    88
  - Handle Controls
    89
  - Control Box Disassembly
    92
  - Control Box Assembly
    93
- Toro Bbc Service Guide
  96
- Toro Vacu Power/Lawn-Boy Medallion Bbc
  98
- Toro Recycler/Rear Bagger Bbc
  108
  - Idler Arm System Disassembly (Recycler/Rear Bagger)
    108
  - Idler Arm System Assembly (Recycler/Rear Bagger)
    111
- BBC Cable Removal (Recycler/Rear Bagger)
  113
- BBC Cable Installation (Recycler/Rear Bagger)
  114
- Disassembly
  114
- Brake Arm Assembly
  119
- BOS/BCS System Assembly
  120
- Blade Override System (Bos), Blade Clutch System (Bcs)
  121
- Handle Disassembly
  122
  - Toro 2 Bail Handle
    122
  - Personal Pace Easy Stride (Generation 1)
    123
  - Personal Pace Easy Stride (Generation 2)
    123
    
    Operation
    123
    
    Disassembly
    123
  - Reassembly
    125
  - Adjusting the Personal Pace Cable
    126
  - Handle Removal
    126
  - Personal Pace Generation 2/Easy Stride Generation 2
    126
  - Adjusting the Personal Pace/Easy Stride Cable
    128
  - Lawn-Boy 2 Bail Handle
    128
  - Lawn-Boy Sens-A-Speed
    129
  - Operation
    129
  - Handle Disassembly, Zone Start Models
    129
  - Assembly
    130
  - Cable Adjustment
    131
  - Self-Propel Cable
    131
  - Handle Disassembly, Lawn-Boy Blade Clutch System (BCS) Models
    131
  - Speed Transmission Models
    133
  - Speed Control Cables
    133
  - BBC Cable Adjustment (Toro Vacu Power/Lawn-Boy Medallion)
    135
  - Toro BBC Cable Adjustment (Recycler/Rear Bagger)
    136
  - Toro BOS Control
    137
  - Toro BOS Control Cable Adjustment
    138
  - Lawn-Boy BCS Control
    138
  - Lawn-Boy BCS Control Cable Adjustment
    138
  - Toro 21" Front Wheel Drive
    142
  - Rear Wheel Drive
    142
  - Steel & Cast Deck Toro & Lawn-Boy Mowers Belt Replacement
    142
  - Cast Deck Mowers with 3 Speed Transmission
    142
  - Toro & Lawn-Boy Mowers with Blade Brake Clutch
    143
  - Lawn-Boy Insight Mowers
    143

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