Toro 74538, 74539, 74548, 74550, 74549 Service 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 Demystication Guide (492-
4761) and subsequent. For service information on drive systems, please refer to the Hydro-Gear BDP service manual
(492-4779). For information specic 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 specied 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 specications or this manual without notice.
Copyright© All Rights Reserved
©2011 The Toro Company
ABOUT THIS MANUAL
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TABLE OF CONTENTS
Safety Information
General Information ..................................................................................................................................... 1-1
Think Safety First......................................................................................................................................... 1-1
Specications
Torque Specications .................................................................................................................................. 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 Specications ........................................................................................................................ 2-4
Equivalents & Conversions.......................................................................................................................... 2-5
Decimal & Millimeter Equivalents .......................................................................................................... 2-5
U.S. to Metric Conversions ................................................................................................................... 2-6
Domestic GrandStand Specications .......................................................................................................... 2-7
Domestic GrandStand Specications cont. ........................................................................................... 2-8
International GrandStand Specications ..................................................................................................... 2-9
International GrandStand Specications 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
iToro GrandStand Service Manual
TABLE OF CONTENTS
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
ii Toro GrandStand Service Manual
TABLE OF CONTENTS
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
Bafes & Skid Plate Replacement .................................................................................................................7-26
Fixed Bafe Removal ..............................................................................................................................7-26
Fixed Bafe Installation ...........................................................................................................................7-27
Adjustable Bafe Removal ......................................................................................................................7-28
Adjustable Bafe Installation ...................................................................................................................7-30
Discharge Bafe Removal ......................................................................................................................7-31
Discharge Bafe 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 Deector Replacement .......................................................................................................................7-44
Grass Deector Removal ........................................................................................................................7-44
Grass Deector 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
iiiToro GrandStand Service Manual
TABLE OF CONTENTS
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
iv Toro GrandStand Service Manual
TABLE OF CONTENTS
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
vToro GrandStand Service Manual
TABLE OF CONTENTS
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vi Toro GrandStand Service Manual
General Information
SAFETY 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
!
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
instruction may result in personal injury or
even death.
Think Safety First
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.
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
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.
1
Avoid burns...
Do not touch the engine, mufer, 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 conned area without
proper ventilation.
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 modications...
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.
1-1Toro GrandStand Service Manual
1
SAFETY INFORMATION
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1-2 Toro GrandStand Service Manual
SPECIFICATIONS
SPECIFICATIONS
Torque Specications
Torque Specifications
Recommended fastener torque values are listed in the
following tables. For critical applications, as
determined by Toro, either the recommended torque or
a torque that is unique to the application is clearly
identified and specified in the service manual.
These torque specifications for the installation and
tightening of fasteners shall apply to all fasteners which
do not have a specific requirement identified in the
service manual. The following factors shall be
considered when applying torque: cleanliness of the
fastener, use of a thread sealant (Loctite), degree of
lubrication on the fastener, presence of a prevailing
torque feature, hardness of the surface underneath of
the fastener’s head, or similar condition which affects
the installation.
As noted in the following tables, torque values should
be reduced by 25% for lubricated fasteners to
achieve the similar stress as a dry fastener. Torque
values may also have to be reduced when the fastener
is threaded into aluminum or brass. The specific
torque value should be determined based on the
aluminum or brass material strength, fastener size,
length of thread engagement, etc.
Fastener Identification
Inch Series Bolts and Screws
(A) Grade 1 & 2
(B) Grade 5
2
.
(C) Grade 8
The standard method of verifying torque shall be
performed by marking a line on the fastener (head or
nut) and mating part, then back off fastener 1/4 of a
turn. Measure the torque required to tighten the
fastener until the lines match up.
.
Metric Bolts and Screws
(A) Class 8.8 (B) Class 10.9
2-1Toro GrandStand Service Manual
SPECIFICATIONS
Standard Torque for Dry, Zinc Plated, and Steel Fasteners (Inch Series)
Standard Torque for Dry, Zinc Plated & Steel Fasteners (Inch Series)
Grade 1, 5, &
Thread Size
2
# 6 - 32 UNC
# 6 - 40 UNF 17 ± 2 190 ± 20 25 ± 2 280 ± 20
# 8 - 32 UNC
# 8 - 36 UNF 31 ± 3 350 ± 30 43 ± 4 31 ± 3
# 10 - 24 UNC
#10 - 32 UNF 48 ± 4 540 ± 45 68 ± 6 765 ± 70
1/4 - 20 UNC 48 ± 7 53 ± 7 599 ± 79 100 ± 10 1125 ± 100 140 ± 15 1580 ± 170
1/4 - 28 UNF 53 ± 7 65 ± 10 734 ± 113 115 ± 10 1300 ± 100 160 ± 15 1800 ± 170
5/16 - 18 UNC 115 ± 15 105 ± 15 1186 ± 169 200 ± 25 2250 ± 280 300 ± 30 3390 ± 340
5/16 - 24 UNF 138 ± 17 128 ± 17 1446 ± 192 225 ± 25 2540 ± 280 325 ± 30 3670 ± 340
3/8 - 16 UNC 16 ± 2 16 ± 2 22 ± 3 30 ± 3 41 ± 4 43 ± 4 58 ± 5
3/8 - 24 UNF 17 ± 2 18 ± 2 24 ± 3 35 ± 3 47 ± 4 50 ± 4 68 ± 5
7/16 - 14 UNC 27 ± 3 27 ± 3 37 ± 4 50 ± 5 68 ± 7 70 ± 7 68 ± 9
7/16 - 20 UNF 29 ± 3 29 ± 3 39 ± 4 55 ± 5 75 ± 7 77 ± 7 104 ± 9
1/2 - 13 UNC 30 ± 3 48 ± 7 65 ± 9 75 ± 8 102 ± 11 105 ± 10 142 ± 14
1/2 - 20 UNF 32 ± 3 53 ± 7 72 ± 9 85 ± 8 115 ± 11 120 ± 10 163 ± 14
5/8 - 11 UNC 65 ± 10 88 ± 12 119 ± 16 150 ± 15 203 ± 20 210 ± 20 285 ± 27
5/8 - 18 UNF 75 ± 10 95 ± 15 129 ± 20 170 ± 15 230 ± 20 240 ± 20 325 ± 27
3/4 - 10 UNC 93 ± 12 140 ± 20 190 ± 27 265 ± 25 359 ± 34 374 ± 35 508 ± 47
3/4 - 16 UNF 115 ± 15 165 ± 25 224 ± 34 300 ± 25 407 ± 34 420 ± 35 569 ± 47
7/8 - 9 UNC 140 ± 20 225 ± 25 305 ± 34 430 ± 45 583 ± 61 600 ± 60 813 ± 81
7/8 - 14 UNF 155 ± 25 260 ± 30 353 ± 41 475 ± 45 644 ± 61 660 ± 60 895 ± 81
8 with Thin
Height Nuts
In-lb In-lb N-cm In-lb N-cm In-lb N-cm
10 ± 2 13 ± 2 147 ± 23
13 ± 2 25 ± 5 282 ± 30
18 ± 2 30 ± 5 339 ± 56
ft-lb ft-lb N-m ft-lb N-m ft-lb N-m
SAE Grade 1 Bolts, Screws,
Studs, & Sems with Regular
Height Nuts (SAE J995
Grade 2 or Stronger Nuts)
SAE Grade 5 Bolts, Screws,
Studs, & Sems with Regular
Height Nuts (SAE J995
Grade 2 or Stronger Nuts)
15 ± 2 169 ± 23 23 ± 2 260 ± 34
29 ± 3 330 ± 30 41 ± 4 460 ± 45
42 ± 4 475 ± 45 60 ± 6 674 ± 70
SAE Grade 8 Bolts, Screws,
Studs, & Sems with Regular
Height Nuts (SAE J995
Grade 2 or Stronger Nuts)
Note: Reduce torque values listed in the table above
by 25% for lubricated fasteners. Lubricated fasteners
are defined as threads coated with a lubricant such as
oil, graphite, or thread sealant such as Loctite.
Note: The nominal torque values listed above for
Grade 5 and 8 fasteners are based on 75% of the
minimum proof load specified in SAE J429. The
tolerance is approximately ± 10% of the nominal torque
value. Thin height nuts include jam nuts.
Note: Torque values may have to be reduced when
installing fasteners into threaded aluminum or brass.
The specific torque value should be determined based
on the fastener size, the aluminum or base material
strength, length of thread engagement, etc.
2-2 Toro GrandStand Service Manual
SPECIFICATIONS
Standard Torque for Dry, Zinc, and Steel Fasteners (Metric Fasteners)
Standard Torque for Dry, Zinc & Steel Fasteners (Metric Fasteners)
Class 8.8 Bolts, Screws, and Studs with
Thread Size
M5 X 0.8 57 ± 5 in-lb 644 ± 68 N-cm 78 ± 8 in-lb 881 ± 90 N-cm
M6 X 1.0 96 ± 10 in-lb 1085 ± 113 N-cm 133 ± 14 in-lb 1503 ± 158 N-cm
M8 X 1.25 19 ± 2 ft-lb 26 ± 3 N-m 28 ± 3 ft-lb 38 ± 4 N-m
M10 X 1.5 38 ± 4 ft-lb 52 ± 5 N-m 54 ± 6 ft-lb 73 ± 8 N-m
M12 X 1.75 66 ± 7 ft-lb 90 ± 10 N-m 93 ± 10 ft-lb 126 ± 14 N-m
M16 X 2.0 166 ± 15 ft-lb 225 ± 23 N-m 229 ± 23 ft-lb 310 ± 31 N-m
M20 X 2.5 325 ± 33 ft-lb 440 ± 45 N-m 450 ± 36 ft-lb 610 ± 62 N-m
Note: Reduce torque values listed in the table above
by 25% for lubricated fasteners. Lubricated fasteners
are defined as threads coated with a lubricant such as
oil, graphite, or thread sealant such as Loctite.
Note: Torque values may have to be reduced when
installing fasteners into threaded aluminum or brass.
The specific torque value should be determined based
on the fastener size, the aluminum or base material
strength, length of thread engagement, etc.
Regular Height Nuts
(Class 8 or Strong Nuts)
Note: The nominal torque values listed above are
based on 75% of the minimum proof load specified in
SAE J1199. The tolerance is approximately ± 10% of
the nominal torque value. Thin height nuts include jam
nuts.
Class 10.9 Bolts, Screws, and Studs with
Regular Height Nuts (
Class 10 or Strong Nuts)
2
2-3Toro GrandStand Service Manual
SPECIFICATIONS
Other Torque Specifications
Other Torque Specications
SAE Grade 8 Steel Set Screws
Recommended Torque
Square Head Hex Socket
2
Thread Size
1/4 - 20 UNC 140 ± 20 in-lb 73 ± 12 in-lb
5/16 - 18 UNC 215 ± 35 in-lb 145 ± 20 in-lb
3/8 - 16 UNC 35 ± 10 ft-lb 18 ± 3 ft-lb
1/2 - 13 UNC 75 ± 15 ft-lb 50 ± 10 ft-lb
Thread Cutting Screws
(Zinc Plated Steel)
Type 1, Type 23, or Type F
Thread Size Baseline Torque*
No. 6 - 32 UNC 20 ± 5 in-lb
Wheel Bolts and Lug Nuts
Thread Size Recommended Torque**
7/16 - 20 UNF
Grade 5
1/2 - 20 UNF
Grade 5
M12 X 1.25
Class 8.8
M12 X 1.5
Class 8.8
** For steel wheels and non-lubricated fasteners.
Thread Cutting Screws
Thread
Size
No. 6 18 20 20 ± 5 in-lb
Threads per Inch
Type A Type B
65 ± 10 ft-lb 88 ± 14 N-m
80 ± 10 ft-lb 108 ± 14 N-m
80 ± 10 ft-lb 108 ± 14 N-m
80 ± 10 ft-lb 108 ± 14 N-m
(Zinc Plated Steel)
Baseline Torque*
No. 8 - 32 UNC 30 ± 5 in-lb
No.10 - 24 UNC 38 ± 7 in-lb
1/4 - 20 UNC 85 ± 15 in-lb
5/16 - 18 UNC 110 ± 20 in-lb
3/8 - 16 UNC 200 ± 100 in-lb
Conversion Factors
in-lb X 11.2985 = N-cm
ft-lb X 1.3558 = N-m
No. 8 15 18 30 ± 5 in-lb
No. 10 12 16 38 ± 7 in-lb
No. 12 11 14 85 ± 15 in-lb
* Hole size, material strength, material thickness and
finish must be considered when determining specific
torque values. All torque values are based on nonlubricated fasteners.
N-cm X - 0.08851 = in-lb
N-cm X 0.73776 = ft-lb
2-4 Toro GrandStand Service Manual
Equivalents & Conversions
Equivalents and Conversions
Decimal and Millimeter Equivalents
Decimal & Millimeter Equivalents
Fractions Decimals mm Fractions Decimals mm
1/64 0.015625 0.397 33/64 0.515625 13.097
1/32 0.03125 0.794 16/32 0.53125 13.484
3/64 0.046875 1.191 35/64 0.546875 13.891
1/16 0.0625 1.588 9/16 0.5625 14.288
5/64 0.078125 1.984 37/64 0.578125 14.684
3/32 0.9375 2.381 19/32 0.59375 15.081
1/8 0.1250 3.175 5/8 0.6250 15.875
5/32 0.15625 3.969 21/32 0.65625 16.669
3/16 0.1875 4.762 11/16 0.6875 17.462
7/32 0.21875 5.556 23/32 0.71875 18.256
1/4 0.2500 6.350 3/4 0.7500 19.050
9/32 0.28125 7.144 25/32 0.78125 19.844
5/16 0.3125 7.541 13/16 0.8125 20.638
11/32 0.34375 8.731 27/32 0.84375 21.431
3/8 0.3750 9.525 7/8 0.8750 22.225
13/32 0.40625 10.319 29/32 0.90625 23.019
7/16 0.4375 11.112 15/16 0.9375 23.812
15/32 0.46875 11.906 31/32 0.96875 24.606
1/2 0.5000 12.700 1 1.000 25.400
9/64 0.140625 3.572 41/64 0.640625 16.272
11/64 0.171875 4.366 43/64 0.671875 17.066
13/64 0.203125 5.159 45/64 0.703125 17.859
15/64 0.234375 5.953 47/64 0.734375 18.653
17/64 0.265625 6.747 49/64 0.765625 19.447
19/64 0.296875 7.541 51/64 0.796875 20.241
21/64 0.328125 8.334 53/64 0.828125 21.034
23/64 0.359375 9.128 55/64 0.859375 21.828
25/64 0.390625 9.922 57/64 0.890625 22.622
27/64 0.421875 10.716 59/64 0.921875 23.416
29/64 0.453125 11.509 61/64 0.953125 24.209
31/64 0.484375 12.303 63/64 0.984375 25.003
1 mm = 0.03937 in. 0.001 in. = 0.0254 mm
SPECIFICATIONS
2
2-5Toro GrandStand Service Manual
2
U.S. to Metric Conversions
SPECIFICATIONS
U.S. to Metric Conversions
To Convert Into Multiply By
Miles
Yards
Linear
Measurement
Area
Volume
Weight
Pressure
Work
Liquid Volume
Liquid Flows
Temperature
Feet
Feet
Inches
Inches
Inches
Square Miles
Square Feet
Square Inches
Acre
Cubic Yards
Cubic Feet
Cubic Inches
Tons (Short)
Pounds
Ounces
Pounds/Sq. In. Kilopascal
Foot-pounds
Foot-pounds
Inch-pounds
Quarts
Gallons
Gallons/Minute Liters/Minute
Fahrenheit Celsius
Kilometers
Meters
Meters
Centimeters
Meters
Centimeters
Millimeters
Square Kilometers
Square Meters
Square Centimeters
Hectare
Cubic Meters
Cubic Meters
Cubic Centimeters
Metric Tons
Kilograms
Grams
Newton-Meters
Kilogram-Meters
Kilogram-Centimeters
Liters
Liters
1.609
0.9144
0.3048
30.48
0.0254
2.54
25.4
2.59
0.0929
6.452
0.4047
0.7646
0.02832
16.39
0.9078
0.4536
28.3495
6.895
1.356
0.1383
1.152144
0.9463
3.785
3.785
1. Subtract 32°
2. Multiply by 5/9
2-6 Toro GrandStand Service Manual
SPECIFICATIONS
Domestic GrandStand Specications
Engines:
Output (Max. @ 3600 RPM’s)
18 hp
(13.4kW)
Make Kawasaki Kawasaki Kawasaki Kawasaki Kawasaki Kawasaki
Model FS541V FH580V FS600V FH680V FS691V FS730V
Hi-Idle 3600 ± 100
RPM
Starter Electric Electric Electric Electric Electric Electric
Spark Plug NGK BPR4ES Champion
Oil SAE 10w-30/
SAE10w-40
Oil Capacity 2.1 Qt. (2.0 L) 3.8 Pint (1.8L) 2.1 Qt. (2.0 L) 2.0 Qt. (1.9 L) 2.2 Qt. (2.2 L) 2.2 Qt. (2.2 L)
CARB 79534 / 79536 79558 / 79559 No Yes 79548 / 79549 79551
19 hp
(14.2kW)
3600 ± 100
RPM
RCJ8Y
SAE 10w-30/
SAE10w-40
20 hp
(14.9kW)
3600 ± 100
RPM
NGK BPR4ES NGK BPR4ES NGK BPR4ES NGK BPR4ES
SAE 10w-30/
SAE10w-40
23 hp
(17.2kW)
3600 ± 100
RPM
SAE 10w-30/
SAE10w-40
24 hp
(17.9kW)
3600 ± 100
RPM
SAE 10w-30/
SAE10w-40
26 hp
(19.4kW)
3600 ± 100
RPM
SAE 10w-30/
SAE10w-40
2
Fuel System:
7 or 12 Gallons (26.5 or 45.4L) fuel tank capacity
Traction Drives:
Traction Control: Toro “Split-Handle” Control Levers
Hydraulic Pump: Two Hydro-Gear Model PG 10cc (Same Part # / No Left & Right)
Hydraulic Wheel Motor: Two Parker TEO-195
Hydraulic Oil Filter: 25 Micron Automotive Spin-On Type
Hydraulic Fluid: Toro Hypr-Oil or Equivalent Synthetic 15w50
Hydraulic Fluid Capacity: 2.1 quarts (1.9 liters)
Parking Brake: Standard Equipment
Ground Speed: (Hydro-MPH) Variable, 3 (5 kph) to 8 (13 kph) MPH Fwd / 0 to 3 (5 kph) MPH Rev
Hourmeter with Service Indicator: Standard Equipment
Wheels & Tires:
Front Castors Tires: 11”x4” - 5”, 4 ply, Smooth Tread, Semi Pneumatic
Front Castors Fork: Heavy-Duty Design with 1” (25.4mm) Diameter Pivot Shaft
Rear Traction Tires: 20”x10”-8”, 4 ply with Turf Traction Tread
Mower Drive:
2-7Toro GrandStand Service Manual
2
SPECIFICATIONS
Domestic GrandStand Specications cont.
Mower Engagement: Engine Mounted Electric Clutch
Clutch Adjustment: Periodic Air Gap Adjustment Required - .018” + .003” (0.45 + 0.0762 mm)
PTO Drive Belt: HB Section w/Aramid (Kevlar) Cords and Dry Clutching Envelope
PTO Idler: Spring Loaded Pivot Hub w/Friction Washer Dampening
Deck Drive Belt: HA Section with Aramid (Kevlar) Cords and Standard (Non-Clutching) Envelope
Deck Drive Idler: Spring Loaded Pivot Hub w/Friction Washer Dampening
Mower Decks:
HOC Range: 1” to 5” in 1/4” increments (25.4mm to 127mm in 6.3mm increments)
Blades: Three .250” (6.3mm) Thick Heat Treated Steel Blades
Spindles: Machined Steel 1.00” (25mm) Diameter Shaft
Spindle Housing: Ductile Cast Iron, 9-3/8” (24cm) Diameter Mounted with Six Bolts
Bearings: Greasable Ball Bearings with Grease Fitting for Lubrication
Construction: 7 gauge (.179” / 4.5mm) Steel Welded Construction
Blade Tip Speed: (Domestic) 48” - 18,750 ft/m calculated @ 3600 engine RPM
52” - 18,750 ft/m calculated @ 3600 engine RPM
60” - 18,750 ft/m calculated @ 3600 engine RPM
Skid Plate: Standard
Adjustable Discharge Bafe: Standard
Rubber Discharge Chute: Standard
Unit Dimensions:
Deck
Width
48” (122cm) 48” (122cm) 63.5” (161cm) 49.5” (126cm) 74” (188cm) 53” (135cm) 887 lbs (400kg)
52” (132cm) 48” (122cm) 67.5” (171cm) 53.5” (135cm) 74” (188cm) 53” (135cm) 900 lbs (408kg)
60” (152cm) 48” (122cm) 75.5” (191cm) 61.5” (156cm) 74” (188cm) 53” (135cm) 925 lbs (419kg)
* Estimated operating weight
Height
Width
Deector
Down
Width
Deector
Raised
Length
Platform
Down
Length
Platform Up
Weight*
2-8 Toro GrandStand Service Manual
SPECIFICATIONS
International GrandStand Specications
Engines:
Output (Max. @ 3000 RPM’s)
19 hp (14.2 kW) 20 hp (17.2 kW) 23 hp (17.2 kW)
Make Kawasaki Kawasaki Kawasaki
Model FH580V FS600V FH680V
Hi-Idle 2900 ± 100 RPM 2900 ± 100 RPM 2900 ± 100 RPM
Starter Electric Electric Electric
Spark Plug Champion RCJ8Y NGK BPR4ES NGK BPR4ES
Oil SAE 10w-30 / SAE10w-40 SAE 10w-30 / SAE10w-40 SAE 10w-30 / SAE10w-40
Oil Capacity 1.8 L (3.8 pint) 1.9 L (4.0 pint) 1.9 L (4.0 pint)
Fuel System:
26.5 L (7 gal.) Fuel Tank Capacity
Traction Drives:
Traction Control: Toro Twin Lever Control Levers
Hydraulic Pump: Two Hydro-Gear Model PG 10cc (Same Part # / No Left & Right)
Hydraulic Wheel Motor: Two Parker TEO-195
Hydraulic Oil Filter: 25 Micron Automotive Spin-On Type
Hydraulic Fluid: Toro Hypr-Oil or Equivalent Synthetic 15w50
Hydraulic Fluid Capacity: 1.9 L (2.1 quarts)
Parking Brake: Standard Equipment
Ground Speed: Variable, 3 (5 kph) to 8 (13 kph) MPH Fwd / 0 to 3 (5 kph) MPH Rev
Hourmeter with Service Indicator Standard Equipment
2
Wheels and Tires:
Front Castors Tires: 11”x4” - 5”, 4 ply, Smooth Tread, Semi Pneumatic
Front Castors Fork: Heavy-Duty Design with 25.4mm (1”) Diameter Pivot Shaft
Rear Traction Tires: 20”x10”-8”, 4 ply with Turf Traction Tread
2-9Toro GrandStand Service Manual
2
SPECIFICATIONS
International GrandStand Specications cont.
Mower Drive:
Mower Engagement: Engine Mounted Electric Clutch
Clutch Adjustment: Periodic Air Gap Adjustment Required - 0.45 ± 0.0762 mm (.018” ± .003”)
PTO Drive Belt: HB Section W/ Aramid (Kevlar) Cords and Dry Clutching Envelope
PTO Idler: Spring Loaded Pivot Hub w/Friction Washer Dampening
Deck Drive Belt: HA Section with Aramid (Kevlar) Cords and Standard (Non-Clutching)
Envelope
Deck Drive Idler: Spring Loaded Pivot Hub w/Friction Washer Dampening
Mower Decks:
HOC Range: 25.4mm (1”) to 127mm (5”) in 6.3mm (1/4”) increments
Blades: Three 6.3mm (.250”) Thick Heat Treated Steel Blades
Spindles: Machined Steel 25.4mm (1”) Diameter Shaft
Spindle Housing: Ductile Cast Iron, Mounted with Six Bolts
Bearings: Greasable Ball Bearings with Grease Fitting for Lubrication
Construction: 7 gauge (.179” / 4.5mm) Steel Welded Construction
Blade Tip Speed: 122cm (48”) - 18,750 ft/m calculated @ 3600 engine RPM
132cm (52”) - 18,750 ft/m calculated @ 3600 engine RPM
Skid Plate: Standard
Adjustable Discharge Bafe: Standard
Rubber Discharge Chute: Standard
Unit Dimensions:
Width
Deck Width Height
122cm (48”) 122cm (48”) 161cm (63.5”) 126cm (49.5”) 135cm (53”) 188cm (74”) 400 kg (881 lbs)
132cm (52”) 122cm (48”) 171cm (67.5”) 135cm (53”) 135cm (53”) 188cm (74”) 408 kg (900 lbs)
* Estimated operating weight
Deector
Down
Width
Deector
Raised
Length
Platform Up
Length
Platform
Down
Weight*
2-10 Toro GrandStand Service Manual
CHASSIS
Parking Brake Assembly Replacement
Parking Brake Assembly Removal
1. Move the parking brake lever to the “OFF” position
(Fig. 0001).
Fig. 0001 IMG-1302a
2. Remove the hairpin cotter and clevis pin securing
the linkage yoke at the lower end of the brake rod to
the brake assembly (Fig. 0002).
3
Fig. 0002 DSCN-0264a
3. Move the parking brake lever to the “ON” position
(Fig. 0003).
Fig. 0003 IMG-1310a
3-1Toro GrandStand Service Manual
CHASSIS
3
4. Remove the hairpin cotter from the top end of the
parking brake rod. Slide the top end of the rod out of
the handle (Fig. 0004).
Fig. 0004 IMG-9347a
Note: 2010 models use a nut to secure the upper
end of the parking brake rod (Fig. 0005).
5. Remove the hairpin cotter and clevis pin securing
the top and bottom brake arms to the brake lever
(Fig. 0006).
Fig. 0006 DSCN-0268a
6. Disconnect the wire harness from the brake switch
(Fig. 0007).
Fig. 0005 DSCN-0261a
3-2 Toro GrandStand Service Manual
Fig. 0007 DSCN-0265a
CHASSIS
7. Remove the carriage bolt and nut securing the brake
lever and brake switch plate to the control tower,
then remove the brake lever and brake switch plate
(Fig. 0008).
Fig. 0008 DSCN-0255a
8. Remove the bolt and nut securing the RH side of the
brake assembly and torsion spring assembly to the
chassis (Fig. 0009).
9. Remove the shoulder bolt, thick washer and nut
securing the LH side of the brake assembly to the
chassis, then remove the brake assembly (Fig.
0010).
3
Fig. 0010 IMG-1325a
Fig. 0009 IMG-1324a
3-3Toro GrandStand Service Manual
CHASSIS
3
Parking Brake Assembly Installation
1. Secure the LH side of the brake assembly to the
chassis using the shoulder bolt, thick washer and nut
(Fig. 0011).
Fig. 0011 IMG-1325a
3. Position the bolt and spacer through the chassis
mount and brake assembly. The spacer must be
nested in the chassis mount (Fig. 0013).
Fig. 0013 IMG-1332a
4. Position the large spacer onto the bolt (Fig. 0014).
2. Place the small spacer onto the bolt that secures the
RH side of the brake assembly (Fig. 0012).
Fig. 0012 IMG-1329a
Fig. 0014 IMG-1334a
3-4 Toro GrandStand Service Manual
CHASSIS
5. Position the torsion spring over the spacer and
bolt. The straight end of the spring is secured by
the chassis, the curved end hooks under the brake
assembly (Fig. 0015).
Fig. 0015 IMG-1336a
6. Secure the RH assembly using the washer and nut
(Fig. 0016).
7. Position the carriage bolt through the RH side of the
control tower (Fig. 0017).
3
Fig. 0017 IMG-1338a
8. Position the switch plate onto the carriage bolt (Fig.
0018).
Note: The switch plate has a square hole that
must be nested onto the square shank of the
carriage bolt.
Fig. 0016 IMG-1324a
Fig. 0018 IMG-1344a
3-5Toro GrandStand Service Manual
CHASSIS
3
9. Position one of the large washers onto the carriage
bolt (Fig. 0019).
Fig. 0019 IMG-1348a
10. Position the shouldered spacer onto the carriage bolt
(Fig. 0020).
11. Position the brake lever through the control panel
and onto the shouldered spacer (Fig. 0021).
Fig. 0021 IMG-1355a
12. Secure the brake lever assembly with the large
washer and nut (Fig. 0022).
Fig. 0020 IMG-1351a
3-6 Toro GrandStand Service Manual
Fig. 0022 DSCN-0255a
CHASSIS
13. Position the clevis pin through the bottom brake arm
(Fig. 0023).
Fig. 0023 IMG-1365a
14. Insert the clevis pin through the brake lever (Fig.
0024).
15. Position the top brake arm onto the clevis pin (Fig.
0025).
3
Fig. 0025 DSCN-0259a
16. Install the hairpin cotter to the clevis pin (Fig. 0026).
Fig. 0024 IMG-1367a
Fig. 0026 DSCN-0268a
3-7Toro GrandStand Service Manual
CHASSIS
3
17. Plug the wire harness into the brake switch (Fig.
0027).
Fig. 0027 DSCN-0265a
18. Feed the brake rod up through the fuel tank base
and secure the upper end to the brake arm using a
hairpin cotter (Fig. 0028).
Fig. 0028 IMG-9347a
Note: 2010 models use a nut to secure the upper
end of the parking brake rod (Fig. 0029).
Fig. 0029 DSCN-0261a
3-8 Toro GrandStand Service Manual
CHASSIS
19. Secure the yoke on the lower end of the brake rod
to the brake assembly using a clevis pin and hairpin
cotter (Fig. 0030).
Fig. 0030 DSCN-0264a
20. The brake assembly should contact the tires when
there is approximately 3/4” (1.9cm) gap between
the front edge of the control panel slot and the front
edge of the brake lever (Fig. 0031).
21. If adjustment is needed, remove the clevis pin securing the yoke to the brake arm. Rotate the yoke to
obtain the desired gap (Fig. 0032).
3
Fig. 0032 DSCN-0264a
A
Fig. 0031 DSCN-0263a
A. 3/4” (1.9cm)
3-9Toro GrandStand Service Manual
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