Toro GrandStand Series User manual

LCE Products
Toro GrandStand
Stand-on Mower
Service Manual

ABOUT THIS MANUAL
This service manual was written expressly for Toro and Lawn-Boy service technicians. The Toro Company has made
every effort to make the information in this manual complete and correct.
Basic shop safety knowledge and mechanical/electrical skills are assumed. The Table of Contents lists the systems
and the related topics covered in this manual.
For additional information on the electrical system, please refer to the Toro Electrical Demystication Guide (492-
4761) and subsequent. For service information on drive systems, please refer to the Hydro-Gear BDP service manual
(492-4779). For information specic to the engines used on this unit, refer to the appropriate engine manufacturer’s
service and repair instructions.
Toro GrandStand model years 2009 - 2010 are covered in this manual. The manual may also be specied for use on
later model products.
Both 2009 and 2010 models were used during the writing of this manual. You may see slight differences in the photos
depending on which model you are servicing.
Due to the compact design, parts were removed for photographic purposes when necessary.
The hydraulic components are sophisticated pieces of machinery. Maintain strict cleanliness control during all stages
of service and repair. Cover or cap all hose ends and ttings whenever they are exposed. Even a small amount of dirt
or other contamination can severely damage the system.
We are hopeful that you will nd this manual a valuable addition to your service shop. If you have any questions or
comments regarding this manual, please contact us at the following address:
The Toro Company
Residential and Landscape Contractor Service Training Department
8111 Lyndale Avenue South
Bloomington, MN 55420
The Toro Company reserves the right to change product specications or this manual without notice.
Copyright© All Rights Reserved
©2011 The Toro Company

ABOUT THIS MANUAL
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TABLE OF CONTENTS
iToro GrandStand Service Manual
Safety Information
General Information ..................................................................................................................................... 1-1
Think Safety First......................................................................................................................................... 1-1
Specications
Torque Specications .................................................................................................................................. 2-1
Standard Torque for Dry, Zinc Plated & Steel Fasteners (Inch Series) ....................................................... 2-2
Standard Torque for Dry, Zinc & Steel Fasteners (Metric Fasteners) .......................................................... 2-3
Other Torque Specications ........................................................................................................................ 2-4
Equivalents & Conversions.......................................................................................................................... 2-5
Decimal & Millimeter Equivalents .......................................................................................................... 2-5
U.S. to Metric Conversions ................................................................................................................... 2-6
Domestic GrandStand Specications .......................................................................................................... 2-7
Domestic GrandStand Specications cont. ........................................................................................... 2-8
International GrandStand Specications ..................................................................................................... 2-9
International GrandStand Specications cont. .................................................................................... 2-10
Chassis
Parking Brake Assembly Replacement ....................................................................................................... 3-1
Parking Brake Assembly Removal ........................................................................................................ 3-1
Parking Brake Assembly Installation ..................................................................................................... 3-4
Height of Cut (HOC) Handle Assembly Replacement ............................................................................... 3-10
HOC Handle Assembly Removal ........................................................................................................ 3-10
HOC Handle Assembly Installation ..................................................................................................... 3-12
Caster Wheel Assembly Replacement ...................................................................................................... 3-17
Caster Wheel Assembly Removal ....................................................................................................... 3-17
Caster Wheel Assembly Installation .................................................................................................... 3-20
Fuel Tank Assembly Replacement ............................................................................................................ 3-26
Fuel Tank Assembly Removal ............................................................................................................. 3-26
Fuel Tank Assembly Installation .......................................................................................................... 3-29
Platform & Cushion Assembly Replacement ............................................................................................. 3-32
Platform & Cushion Assembly Removal ............................................................................................. 3-32
Platform & Cushion Assembly Installation .......................................................................................... 3-34
Lift Assist Cylinder Replacement (2009 only) ............................................................................................ 3-40
Lift Assist Cylinder Removal (2009 only) ............................................................................................ 3-40
Lift Assist Cylinder Installation (2009 only) ......................................................................................... 3-43
Lift Assist Spring Replacement (2010 only) ............................................................................................... 3-46
Lift Assist Spring Removal (2010 only) ............................................................................................... 3-46
Lift Assist Springs Installation (2010 only) .......................................................................................... 3-48
Wheel Motor Housing Assembly Replacement ......................................................................................... 3-49
Wheel Motor Housing Assembly Removal .......................................................................................... 3-49
Wheel Motor Housing Assembly Installation ....................................................................................... 3-53
Cross Shaft & Lift Assembly Replacement ................................................................................................ 3-57
Cross Shaft & Lift Assembly Removal ................................................................................................ 3-57
Cross Shaft & Lift Assembly Installation ............................................................................................. 3-62
Engine Base Replacement ........................................................................................................................ 3-71
Engine Base Removal ........................................................................................................................ 3-71
Engine Base Installation ..................................................................................................................... 3-92
Carrier Frame Replacement .................................................................................................................... 3-123
Carrier Frame Removal .................................................................................................................... 3-123
Carrier Frame Installation ................................................................................................................. 3-140

TABLE OF CONTENTS
ii Toro GrandStand Service Manual
Controls
LH Motion Control Lever Replacement ...........................................................................................................4-1
LH Motion Control Lever Removal ............................................................................................................4-1
LH Motion Control Lever Installation .........................................................................................................4-3
RH Motion Control Lever Replacement ...........................................................................................................4-4
RH Motion Control Lever Removal ...........................................................................................................4-4
RH Motion Control Lever Installation ........................................................................................................4-7
RH Control Linkage Replacement ................................................................................................................. 4-11
RH Control Linkage Removal .................................................................................................................4-11
RH Control Linkage Installation ..............................................................................................................4-15
LH Control Linkage Replacement..................................................................................................................4-20
LH Control Linkage Removal ..................................................................................................................4-20
LH Control Linkage Installation ...............................................................................................................4-24
Speed Control Cable & Shifter Replacement ................................................................................................4-31
Speed Control Cable & Shifter Removal .................................................................................................4-31
Speed Control Cable & Shifter Installation ..............................................................................................4-34
Speed Control Adjustment .............................................................................................................................4-39
Control Cable Replacement ..........................................................................................................................4-42
Control Cable Removal ...........................................................................................................................4-42
Control Cable Installation ........................................................................................................................4-43
Choke Cable Replacement............................................................................................................................4-46
Choke Cable Removal ............................................................................................................................4-46
Choke Cable Installation .........................................................................................................................4-47
Throttle Cable Replacement ..........................................................................................................................4-50
Throttle Cable Removal ..........................................................................................................................4-50
Throttle Cable Installation .......................................................................................................................4-52
Engine
Engine Replacement .......................................................................................................................................5-1
Engine Removal ........................................................................................................................................5-1
Engine Installation .....................................................................................................................................5-9
Hydraulic Drive System
Pump Drive Belt Replacement ........................................................................................................................6-1
Pump Drive Belt Removal .........................................................................................................................6-1
Pump Drive Belt Installation ......................................................................................................................6-2
Pump Drive Belt Idler Replacement ................................................................................................................6-4
Pump Drive Belt Idler Removal .................................................................................................................6-4
Pump Drive Belt Idler Installation ..............................................................................................................6-6
Left Hydraulic Pump Replacement ..................................................................................................................6-9
Left Hydraulic Pump Removal ..................................................................................................................6-9
Left Hydraulic Pump Installation .............................................................................................................6-22
Right Hydraulic Pump Replacement..............................................................................................................6-35
Right Hydraulic Pump Removal ..............................................................................................................6-35
Right Hydraulic Pump Installation ...........................................................................................................6-48
Wheel Motor Replacement ............................................................................................................................6-62
Wheel Motor Removal ............................................................................................................................6-62
Wheel Motor Installation .........................................................................................................................6-69
Reservoir Tank Replacement ........................................................................................................................6-75
Reservoir Tank Removal .........................................................................................................................6-75
Reservoir Tank Installation ......................................................................................................................6-79

TABLE OF CONTENTS
iiiToro GrandStand Service Manual
Hydraulic Drive System cont.
Hydraulic Filter Mount Replacement .............................................................................................................6-83
Hydraulic Filter Mount Removal ..............................................................................................................6-83
Hydraulic Filter Mount Installation ...........................................................................................................6-86
Hydraulic Testing ...........................................................................................................................................6-91
Bleeding the Hydraulic System......................................................................................................................6-95
Mower Deck
Mower Deck Belt Replacement .......................................................................................................................7-1
Mower Deck Belt Removal ........................................................................................................................7-1
Mower Deck Belt Installation .....................................................................................................................7-1
Spindle Replacement & Service ......................................................................................................................7-3
Mower Deck Spindle Removal ..................................................................................................................7-3
Mower Deck Spindle Installation ...............................................................................................................7-9
Spindle Service..............................................................................................................................................7-14
Spring Idler & Adjustment Idler Replacement ................................................................................................7-21
Spring Idler Removal ..............................................................................................................................7-21
Spring Idler Installation ...........................................................................................................................7-22
Adjustment Idler Removal .......................................................................................................................7-23
Adjustment Idler Installation ....................................................................................................................7-24
Bafes & Skid Plate Replacement .................................................................................................................7-26
Fixed Bafe Removal ..............................................................................................................................7-26
Fixed Bafe Installation ...........................................................................................................................7-27
Adjustable Bafe Removal ......................................................................................................................7-28
Adjustable Bafe Installation ...................................................................................................................7-30
Discharge Bafe Removal ......................................................................................................................7-31
Discharge Bafe Installation ...................................................................................................................7-32
Skid Plate Removal .................................................................................................................................7-33
Skid Plate Installation ..............................................................................................................................7-34
Anti-Scalp Roller Replacement (60” Models Only) ........................................................................................7-34
Single Anti-Scalp Roller Removal ...........................................................................................................7-34
Single Anti-Scalp Roller Installation ........................................................................................................7-36
Double Anti-Scalp Roller Removal ..........................................................................................................7-37
Double Anti-Scalp Roller Installation .......................................................................................................7-38
Belt Cover Brackets Replacement.................................................................................................................7-39
Early 2009 Belt Cover Bracket Removal .................................................................................................7-39
Early 2009 Belt Cover Bracket Installation ..............................................................................................7-40
Mid 2009 & Later Belt Cover Brackets Removal .....................................................................................7-41
Mid 2009 & Later Belt Cover Brackets Installation ..................................................................................7-42
Grass Deector Replacement .......................................................................................................................7-44
Grass Deector Removal ........................................................................................................................7-44
Grass Deector Installation .....................................................................................................................7-45
Mower Deck Replacement ............................................................................................................................7-47
Mower Deck Removal .............................................................................................................................7-47
Mower Deck Installation ..........................................................................................................................7-48
Mower Deck Adjustments - Correcting the Mower Quality of Cut..................................................................7-50
Checking the Mower Deck Side-to-Side Height ......................................................................................7-50
Changing the Mower Deck Side-to-Side Height .....................................................................................7-51
Checking the Mower Deck Front-to-Rear Pitch ......................................................................................7-51
Changing the Mower Deck Front-to-Rear Pitch ......................................................................................7-52
Matching Height-of-Cut ...........................................................................................................................7-53

TABLE OF CONTENTS
iv Toro GrandStand Service Manual
Electrical
Component Testing ..........................................................................................................................................8-1
Ignition Switch .................................................................................................................................................8-1
Purpose .....................................................................................................................................................8-1
Location ....................................................................................................................................................8-1
How It Works .............................................................................................................................................8-1
Testing .......................................................................................................................................................8-1
Power Take Off (PTO) Switch ..........................................................................................................................8-2
Purpose .....................................................................................................................................................8-2
Location ....................................................................................................................................................8-2
How It Works .............................................................................................................................................8-2
Testing .......................................................................................................................................................8-2
Electric (PTO) Clutch .......................................................................................................................................8-3
Purpose .....................................................................................................................................................8-3
Location ....................................................................................................................................................8-3
How It Works .............................................................................................................................................8-3
Testing .......................................................................................................................................................8-3
Coil Resistance Measurement ..................................................................................................................8-3
Measuring Clutch Current Draw ................................................................................................................8-4
Solenoid...........................................................................................................................................................8-4
Purpose .....................................................................................................................................................8-4
Location ....................................................................................................................................................8-4
How It Works .............................................................................................................................................8-5
Testing .......................................................................................................................................................8-5
Operator Presence Control (OPC) Switch .......................................................................................................8-6
Purpose .....................................................................................................................................................8-6
Location ....................................................................................................................................................8-6
How It Works .............................................................................................................................................8-6
Testing .......................................................................................................................................................8-6
Neutral Switch .................................................................................................................................................8-7
Purpose .....................................................................................................................................................8-7
Location ....................................................................................................................................................8-7
How It Works .............................................................................................................................................8-7
Testing .......................................................................................................................................................8-7
Parking Brake Switch ......................................................................................................................................8-8
Purpose .....................................................................................................................................................8-8
Location ....................................................................................................................................................8-8
How It Works .............................................................................................................................................8-8
Testing .......................................................................................................................................................8-8
Fuse Block & Fuses.........................................................................................................................................8-9
Purpose .....................................................................................................................................................8-9
Location ....................................................................................................................................................8-9
How It Works .............................................................................................................................................8-9
Testing .......................................................................................................................................................8-9
Hour Meter/Control Module ...........................................................................................................................8-10
Purpose ...................................................................................................................................................8-10
Location ..................................................................................................................................................8-10
How It Works ...........................................................................................................................................8-10
Testing .....................................................................................................................................................8-10

TABLE OF CONTENTS
vToro GrandStand Service Manual
Electrical cont.
Component Replacement .............................................................................................................................. 8-11
Ignition Switch Removal .......................................................................................................................... 8-11
Ignition Switch Installation .......................................................................................................................8-12
Power Take Off (PTO) Switch Removal ..................................................................................................8-13
Power Take Off (PTO) Switch Installation ...............................................................................................8-14
Electric PTO Clutch Removal..................................................................................................................8-14
Electric PTO Clutch Installation...............................................................................................................8-23
Electric PTO Clutch Burnishing Procedure .............................................................................................8-32
Solenoid Removal ...................................................................................................................................8-33
Solenoid Installation ................................................................................................................................8-34
Operator Presence Control (OPC) Switch Removal ...............................................................................8-36
Operator Presence Control (OPC) Switch Installation ............................................................................8-36
Neutral Switch Removal ..........................................................................................................................8-38
Neutral Switch Installation .......................................................................................................................8-38
Parking Brake Switch Removal ...............................................................................................................8-39
Parking Brake Switch Installation ............................................................................................................8-39
Hour Meter/Control Module Removal .....................................................................................................8-41
Hour Meter/Control Module Installation ..................................................................................................8-42
Schematics
GrandStand Hydraulic Schematic ...................................................................................................................9-1
GrandStand Electrical Schematic ....................................................................................................................9-2

TABLE OF CONTENTS
vi Toro GrandStand Service Manual
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SAFETY INFORMATION
1-1Toro GrandStand Service Manual
1
General Information
This symbol means WARNING or
PERSONAL SAFETY INSTRUCTION -
read the instruction because if has to do
with your safety. Failure to comply with the
instruction may result in personal injury or
even death.
This manual is intended as a service and repair
manual only. The safety instructions provided herein
are for troubleshooting, service, and repair of the
Toro GrandStand Stand-on Mower. The GrandStand
mower and attachment operator’s manuals contain
safety information and operating tips for safe operating
practices. Operator’s manuals are available through your
Toro parts source or:
The Toro Company
Publications Department
8111 Lyndale Avenue South
Bloomington, MN 55420
Think Safety First
Avoid injury from batteries...
Battery acid is poisonous and can cause burns. Avoid
contact with skin, eyes, and clothing. Battery gases can
explode. Keep cigarettes, sparks, and ames away from
the battery.
Avoid injury due to inferior parts...
Use only original equipment parts to ensure that
important safety criteria are met.
Avoid injury to bystanders...
Always clear the area of bystanders before starting or
testing powered equipment.
Avoid injury due to projectiles...
Always clear the area of sticks, rocks, or any other
debris that could be picked up and thrown by the
powered equipment.
Avoid modications...
Never alter or modify any part unless it is a factory
approved procedure.
Avoid unsafe operation...
Always test the safety interlock system after making
adjustments or repairs on the machine. Refer to the
Electrical section in this manual for more information.
Avoid unexpected starting of engine...
Always turn off the engine and disconnect the spark plug
wire(s) before cleaning, adjusting, or repair.
Avoid lacerations and amputations...
Stay clear of all moving parts whenever the engine is
running. Treat all normally moving parts as if they were
moving whenever the engine is running or has the
potential to start.
Avoid burns...
Do not touch the engine, mufer, or other components
which may increase in temperature during operation,
while the unit is running or shortly after it has been
running.
Avoid res and explosions...
Avoid spilling fuel and never smoke while working with
any type of fuel or lubricant. Wipe up any spilled fuel
or oil immediately. Never remove the fuel cap or add
fuel when the engine is running. Always use approved,
labeled containers for storing or transporting fuel and
lubricants.
Avoid asphyxiation...
Never operate an engine in a conned area without
proper ventilation.
!