Toro 30284 User manual

LCE Products
Floating Deck
Mid-Size
Service Manual

This manual was written for the service technician; basic mechanical/electrical skills are assumed. The Table of
Contents lists the systems and the related topics covered in this manual. The Toro Company has made every effort to
make the information in this manual complete and correct.
For service information specific to the engines used on these products, refer to the appropriate engine manufacturer’s
service and repair instructions.
Additional resources:
• Interactive Electrical Troubleshooting DVD (P/N 492-4757).
• Interactive Hydraulic Troubleshooting DVD (P/N 492-4777).
• Hydro-Gear Hydraulic Pump Service and Repair Manual (P/N 492-4749).
• Ross Wheel Motor Service and Repair Manual (P/N 492-4753).
We hope you will find 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
Landscape Contractors Equipment Division
8111 Lyndale Avenue South
Bloomington, MN 55420
The Toro Company reserves the right to change product specifications or this manual without notice.
ABOUT THIS MANUAL
Copyright© All Rights Reserved
©2008 The Toro Company

Floating Deck Mid-Size Service Manual
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iFloating Deck Mid-Size Service Manual
TABLE OF CONTENTS
SAFETY INFORMATION
General Information......................................................................................................................1-1
Think Safety First..........................................................................................................................1-1
SPECIFICATIONS
Torque Specifications ...................................................................................................................2-1
Standard Torque for Dry, Zinc Plated and Steel Fasteners (Inch Series).....................................2-2
Standard Torque for Dry, Zinc and Steel Fasteners (Metric Fasteners) .......................................2-3
Other Torque Specifications .........................................................................................................2-4
Equivalents and Conversions.......................................................................................................2-5
U.S. to Metric Conversions...........................................................................................................2-6
Hydro with Pistol Grip Controls.....................................................................................................2-7
Hydro with Pistol Grip Controls cont.............................................................................................2-8
Hydro with Pistol Grip Controls cont.............................................................................................2-9
Hydro with T-2 Controls..............................................................................................................2-10
Hydro with T-2 Controls cont......................................................................................................2-11
Gear with T-Bar Controls............................................................................................................2-12
Gear with T-Bar Controls cont....................................................................................................2-13
Gear with T-Bar Controls cont....................................................................................................2-14
International Hydro with T-Bar (T2) Controls..............................................................................2-15
International Hydro with T-Bar (T2) Controls cont......................................................................2-16
International Gear with T-Bar Controls.......................................................................................2-17
International Gear with T-Bar Controls cont. ..............................................................................2-18
CHASSIS
Electric Clutch Replacment ..........................................................................................................3-1
Electric Clutch Removal.........................................................................................................3-1
Clutch Burnishing Procedure.................................................................................................3-4
Electric Clutch Installation......................................................................................................3-4
PTO Idler Replacement................................................................................................................3-9
PTO Idler Removal.................................................................................................................3-9
PTO Idler Installation............................................................................................................3-12
Parking Brake Service - Hydro...................................................................................................3-14
Checking the Parking Brake ................................................................................................3-14
Adjusting the Parking Brake.................................................................................................3-15
Parking Brake Removal.......................................................................................................3-16
Parking Brake Installation....................................................................................................3-20
Wheel Drive Belt and Wheel Hub Replacement - Gear Drive....................................................3-24
Wheel Drive Belt & Wheel Hub Removal.............................................................................3-25
Wheel Drive Belt & Wheel Hub Installation..........................................................................3-30
Brake Band Replacement...........................................................................................................3-36
Brake Band Removal...........................................................................................................3-36
Brake Band Installation........................................................................................................3-40
Carrier Frame Replacement.......................................................................................................3-45
Carrier Frame Removal .......................................................................................................3-45
Carrier Frame Installation ....................................................................................................3-48
Carrier Frame & Mower Deck Adjustments................................................................................3-51
Checking the Carrier Frame & Engine Deck Alignment.......................................................3-51
Castor Wheel Replacement........................................................................................................3-53
Castor Wheel Removal........................................................................................................3-53
Castor Wheel Service..........................................................................................................3-54
Castor Wheel Installation.....................................................................................................3-59

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TABLE OF CONTENTS
CHASSIS cont.
Castor Wheel Fork Bushing Replacement .................................................................................3-60
Castor Wheel Fork Bushing Removal..................................................................................3-60
Castor Wheel Fork Bushing Installation...............................................................................3-61
Fuel Tank Replacement..............................................................................................................3-62
Fuel Tank Removal ..............................................................................................................3-62
Fuel Tank Installation ...........................................................................................................3-67
Battery Tray Replacement..........................................................................................................3-70
Battery Tray Removal ..........................................................................................................3-70
Battery Tray Installation .......................................................................................................3-72
Mid-Size Weight Replacement...................................................................................................3-74
Checking the Brake (T-Bar)........................................................................................................3-75
Adjusting the Brake (T-Bar)........................................................................................................3-76
LINKAGE
Control Linkage Replacement (T-2)..............................................................................................4-1
Control Linkage Removal.......................................................................................................4-1
Control Linkage Installation....................................................................................................4-5
Control Linkage & Thumb Latch Replacement (Pistol Grip Hydro)............................................4-10
Control Linkage & Thumb Latch Removal...........................................................................4-10
Control Linkage & Thumb Latch Installation........................................................................4-13
Lower Control Replacement (T-Bar)...........................................................................................4-17
Lower Control Removal .......................................................................................................4-17
Lower Control Installation ....................................................................................................4-22
Neutral Adjustment Stud Replacement (Pistol Grip Hydro)........................................................4-28
Neutral Adjustment Stud Removal.......................................................................................4-28
Neutral Adjustment Stud Installation....................................................................................4-31
Operator Presence Control Lever Replacement (Pistol Grip Hydro)..........................................4-35
Operator Presence Control Lever Removal.........................................................................4-35
Operator Presence Control Lever Installation......................................................................4-37
Speed Control Replacement (Pistol Grip Hydro)........................................................................4-39
Speed Control Removal.......................................................................................................4-39
Speed Control Installation....................................................................................................4-46
Drive Lever Swivel & Bearing Replacement (Pistol Grip Hydro)................................................4-57
Drive Lever Swivel & Bearing Removal...............................................................................4-57
Drive Lever Swivel & Bearing Installation............................................................................4-61
Handle Assembly Replacement (T-Bar) .....................................................................................4-66
Handle Assembly Removal (T-Bar)......................................................................................4-66
Handle Assembly Installation (T-Bar)...................................................................................4-73
Handle Assembly Removal (T-2) .........................................................................................4-80
Handle Assembly Installation (T-2) ......................................................................................4-92
Choke Cable Replacement.......................................................................................................4-108
Choke Cable Removal.......................................................................................................4-108
Choke Cable Installation....................................................................................................4-110
Throttle Cable Replacement.....................................................................................................4-114
Throttle Cable Removal.....................................................................................................4-114
Throttle Cable Installation..................................................................................................4-117
Linkage Adjustments ................................................................................................................4-121
Speed Control Linkage Adjustment (Pistol Grip Hydro).....................................................4-121
Temporary Neutral Stud Adjustment..................................................................................4-122
Hydro Control Linkage Adjustment...........................................................................................4-123
Adjusting the Left Side Linkage (Pistol Grip) .....................................................................4-124
Adjusting the Right Side Linkage (Pistol Grip)...................................................................4-126

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TABLE OF CONTENTS
LINKAGE cont.
Neutral Stud Adjustment (Pistol Grip).......................................................................................4-126
Adjusting the Control Rod (Pistol Grip).....................................................................................4-128
Checking the Control Rod..................................................................................................4-128
Adjusting the Control Rod..................................................................................................4-128
Tracking Adjustment (Pistol Grip).............................................................................................4-129
Tracking Adjustment (T-2) ........................................................................................................4-130
Neutral Adjustment (T-2)...........................................................................................................4-130
Control Bar Adjustment (T-Bar) ................................................................................................4-132
ENGINE
Engine Removal - Pistol Grip Hydro.............................................................................................5-1
Engine Installation - Pistol Grip Hydro..........................................................................................5-9
Muffler Guard..............................................................................................................................5-20
Engine Removal - Gear Drive.....................................................................................................5-21
Engine Installation - Gear Drive..................................................................................................5-28
HYDROSTATIC DRIVE SYSTEM
Hydro Drive Transmission Traction Belt Replacement.................................................................6-1
Hydro Drive Transmission Traction Belt Removal..................................................................6-1
Hydro Drive Transmission Traction Belt Installation...............................................................6-4
Hydro Idler Replacement..............................................................................................................6-7
Hydro Idler Removal..............................................................................................................6-7
Hydro Idler Installation...........................................................................................................6-9
Hydraulic Pump Replacement....................................................................................................6-11
Hydraulic Pump Removal ....................................................................................................6-12
Hydraulic Pump Installation .................................................................................................6-15
Wheel Motor Replacement.........................................................................................................6-19
Wheel Motor Removal .........................................................................................................6-19
Wheel Motor Installation ......................................................................................................6-22
Hydraulic Reservoir Replacement..............................................................................................6-26
Hydraulic Reservoir Removal ..............................................................................................6-26
Hydraulic Reservoir Installation ...........................................................................................6-27
Hydraulic Testing........................................................................................................................6-29
Bleeding the Hydraulic System...................................................................................................6-32
Checking the Hydraulic Lines.....................................................................................................6-33
Hydraulic Schematic...................................................................................................................6-34
GEAR DRIVE
Traction Drive Belt Replacement..................................................................................................7-1
Traction Drive Belt Removal ..................................................................................................7-1
Traction Drive Belt Installation ...............................................................................................7-2
Gear Drive Idler Replacement......................................................................................................7-4
Gear Drive Idler Removal ......................................................................................................7-4
Gear Drive Idler Installation ...................................................................................................7-6
Transmission Driven Pulley Replacement....................................................................................7-7
Transmission Driven Pulley Removal ....................................................................................7-7
Transmission Driven Pulley Installation ...............................................................................7-10
Gear Drive Transmission Replacement......................................................................................7-13
Gear Drive Transmission Removal......................................................................................7-13
Gear Drive Transmission Installation...................................................................................7-18

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TABLE OF CONTENTS
MOWER DECKS
Mower Spindle Drive Belt Replacement.......................................................................................8-1
Mower Spindle Drive Belt Removal (40”, 48”, 52” and 60” Mower Decks) ............................8-1
Mower Spindle Drive Belt Installation (40”, 48”, 52” and 60” Mower Decks) .........................8-2
Mower Spindle Drive Belt Removal (36” Mower Deck)..........................................................8-4
Mower Spindle Drive Belt Installation (36” Mower Deck).......................................................8-5
PTO Drive Belt Replacement .......................................................................................................8-6
PTO Drive Belt Removal (40”, 48”, 52” and 60” Mower Decks).............................................8-6
PTO Drive Belt Installation (40”, 48”, 52” and 60” Mower Decks)..........................................8-7
PTO Drive Belt Removal (36” Mower Decks).........................................................................8-8
PTO Drive Belt Installation (36” Mower Decks)......................................................................8-9
Spindle Replacement and Service .............................................................................................8-11
Spindle Removal and Teardown..........................................................................................8-11
Spindle Rebuild and Installation...........................................................................................8-14
Idler Arm Assembly Replacement...............................................................................................8-18
Idler Arm Assembly Removal (40”, 48”, 52” and 60” Mower Decks)....................................8-18
Idler Arm Assembly Installation (40”, 48”, 52” and 60” Mower Decks).................................8-22
Idler Arm Assembly Replacement (36” Mower Deck).................................................................8-27
Idler Arm Assembly Removal (36” Mower Deck) .................................................................8-27
Idler Arm Assembly Installation (36” Mower Deck) ..............................................................8-28
Adjustable Baffle Replacement ..................................................................................................8-30
Adjustable Baffle Removal...................................................................................................8-30
Adjustable Baffle Installation................................................................................................8-32
Discharge Baffle Replacement...................................................................................................8-34
Discharge Baffle Removal ...................................................................................................8-34
Discharge Baffle Installation ................................................................................................8-35
Fixed Baffle Replacement ..........................................................................................................8-36
Fixed Baffle Removal (40”, 48”, 52” and 60” Mower Decks)................................................8-36
Fixed Baffle Installation (40”, 48”, 52” and 60” Mower Decks).............................................8-37
Fixed Baffle Replacement (36” Mower Deck).............................................................................8-38
Fixed Baffle Removal (36” Mower Deck).............................................................................8-38
Fixed Baffle Installation (36” Mower Deck)..........................................................................8-39
Skid Plate Replacement (40”, 48”, 52” and 60” Mower Decks)..................................................8-39
Skid Plate Removal (40”, 48”, 52” and 60” Mower Deck) ....................................................8-39
Skid Plate Installation (40”, 48”, 52” and 60” Mower Deck) .................................................8-40
Skid Plate Replacement (36” Mower Deck)................................................................................8-41
Skid Plate Removal (36” Mower Deck)................................................................................8-41
Skid Plate Installation (36” Mower Deck).............................................................................8-42
Front & Rear Deck Hanger Replacement...................................................................................8-43
Front Deck Hanger Removal ...............................................................................................8-43
Front Deck Hanger Installation ............................................................................................8-45
Rear Deck Hanger Removal................................................................................................8-48
Rear Deck Hanger Installation.............................................................................................8-50
Anti-Scalp Roller Replacement...................................................................................................8-52
Single Anti-Scalp Roller Removal........................................................................................8-52
Single Anti-Scalp Roller Installation.....................................................................................8-53
Double Anti-Scalp Roller Removal.......................................................................................8-54
Double Anti-Scalp Roller Installation....................................................................................8-54
Grass Deflector Service..............................................................................................................8-55
Grass Deflector Removal.....................................................................................................8-55
Grass Deflector Disassembly...............................................................................................8-56
Grass Deflector Assembly....................................................................................................8-56
Grass Deflector Installation..................................................................................................8-58

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TABLE OF CONTENTS
MOWER DECKS cont.
Quick Latch Replacement ..........................................................................................................8-59
Quick Latch Removal...........................................................................................................8-59
Quick Latch Installation........................................................................................................8-60
Mower Deck Removal..........................................................................................................8-61
Mower Deck Installation.......................................................................................................8-62
Checking the Engine Deck Height..............................................................................................8-63
Checking the Carrier Frame Front-to-Rear Pitch........................................................................8-64
Checking the Carrier Frame Side-to-Side Height.......................................................................8-64
Checking the Mower Deck Front-to-Rear Pitch..........................................................................8-65
Adjusting the Mower Deck Front-to-Rear Pitch..........................................................................8-66
Checking the Mower Deck Side-to-Side Height .........................................................................8-66
Adjusting the Mower Deck Side-to-Side Height..........................................................................8-67
Matching the Height-of-Cut.........................................................................................................8-67
ELECTRICAL
Tools.............................................................................................................................................9-1
Components.................................................................................................................................9-1
Alternator ...............................................................................................................................9-1
On/Off Switch.........................................................................................................................9-1
Bail Switch .............................................................................................................................9-1
Single Pole Switch.................................................................................................................9-2
PTO Switch............................................................................................................................9-2
Relay, Single Pole Dual Throw...............................................................................................9-3
Ignition Switch........................................................................................................................9-3
Wire Harness T-Bar, Gear Drive (104-8137)..........................................................................9-4
PTO Switch............................................................................................................................9-5
Delay Module.........................................................................................................................9-5
Clutch Power Supply Test Procedure:....................................................................................9-6
DC Mini Hour Meter...............................................................................................................9-8
Proximity Switch.....................................................................................................................9-9
PTO Brake ClutchAssembly..................................................................................................9-9
Wire Harness Pistol Grip (106-8780)...................................................................................9-10
PTO Switch..........................................................................................................................9-11
Wire Harness T-2, Hydro (114-3418)...................................................................................9-12
Wire Harness T-Bar, Hydro (114-3420)................................................................................9-13
Normally Open Switch .........................................................................................................9-14
Normally Closed Switch.......................................................................................................9-14
Starter Solenoid...................................................................................................................9-14
Operator Presence Control (OPC) Switch Replacement (T-Bar) ...............................................9-15
OPC Switch Removal (T-Bar)..............................................................................................9-15
OPC Switch Installation (T-Bar)...........................................................................................9-16
PTO Switch Replacement (T-Bar)..............................................................................................9-18
PTO Switch Removal (T-Bar)...............................................................................................9-18
PTO Switch Installation (T-Bar)............................................................................................9-19
Ignition Switch Replacement (T-Bar)..........................................................................................9-20
Ignition Switch Removal (T-Bar) ..........................................................................................9-20
Ignition Switch Installation (T-Bar) .......................................................................................9-21
Delay Module Replacement (T-Bar)...........................................................................................9-23
Delay Module Removal (T-Bar)............................................................................................9-23
Delay Module Installation (T-Bar).........................................................................................9-24

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TABLE OF CONTENTS
ELECTRICAL cont.
Parking Brake Switch Replacment (Pistol Grip & T-2)................................................................9-26
Parking Brake Switch Removal (P.G. & T-2)........................................................................9-26
Parking Brake Switch Installation (P.G. & T-2).....................................................................9-27
Neutral Switch Replacement (Pistol Grip)..................................................................................9-28
Neutral Switch Removal (P.G.).............................................................................................9-28
Neutral Switch Installation (P.G.)..........................................................................................9-29
PTO Switch Replacement (Electric Start)...................................................................................9-31
PTO Switch Removal (Electric Start)...................................................................................9-31
PTO Switch Installation (Electric Start)................................................................................9-33
Operator Presence Control (OPC) Switch Replacement (Pistol Grip)........................................9-34
OPC Switch Removal (P.G.)................................................................................................9-34
OPC Switch Installation (P.G.).............................................................................................9-36
OPC Switch Position Adjustment (P.G.)...............................................................................9-38
Hour Meter Replacement (Pistol Grip) .......................................................................................9-39
Hour Meter Removal (P.G.)..................................................................................................9-39
Hour Meter Installation (P.G.)...............................................................................................9-41
Ignition Switch Replacement (Pistol Grip)..................................................................................9-43
Ignition Switch Removal (P.G.).............................................................................................9-43
Ignition Switch Installation (P.G.)..........................................................................................9-45
Kill Relay Replacement (Pistol Grip) ..........................................................................................9-47
Kill Relay Removal (P.G.).....................................................................................................9-47
Kill Relay Installation (P.G.)..................................................................................................9-47
Solenoid Switch Replacement (Pistol Grip & T-2)......................................................................9-48
Solenoid Switch Removal (P.G. & T-2).................................................................................9-48
Solenoid Switch Installation (P.G & T-2)...............................................................................9-49
Operator Presence Control (OPC) Switch Replacement (T-2)...................................................9-51
OPC Switch Removal (T-2)..................................................................................................9-51
OPC Switch Installation (T-2)...............................................................................................9-52
Latching Relay Replacement (T-2).............................................................................................9-53
Latching Relay Removal (T-2) .............................................................................................9-53
Latching Relay Installation (T-2) ..........................................................................................9-54
Kill Relay Replacement (T-2)......................................................................................................9-55
Kill Relay Removal (T-2)......................................................................................................9-55
Kill Relay Installation (T-2)...................................................................................................9-56
Proximity Neutral Switch Replacement (T-2)..............................................................................9-56
Proximity Neutral Switch Removal (T-2)..............................................................................9-56
Proximity Neutral Switch Installation (T-2)...........................................................................9-57

1-1Floating Deck Mid-Size Service Manual
1
General Information
Think Safety First
This symbol means WARNING or
PERSONAL SAFETY INSTRUCTION -
read the instruction because it 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 Mid-
Size Walk Behind mower. The Mid-Size Walk Behind
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 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, muffler, or other components
which may increase in temperature during operation,
while the unit is running or shortly after it has been
running.
Avoid fires 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 confined area without
proper ventilation.
Avoid injury from batteries...
Battery acid is poisonous and can cause burns. Avoid
contact with skin, eyes, and clothing. Battery gases can
explode. Deep cigarettes, sparks, and flames 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 modifications...
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.
SAFETY
!

1-2 Floating Deck Mid-Size Service Manual
1
THIS PAGE INTENTIONALLY LEFT BLANK.
SAFETY

SPECIFICATIONS
2-1Floating Deck Mid-Size Service Manual
2
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.
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.
Fastener Identification
Figure 1
Figure 2
Inch Series Bolts and Screws
(A) Grade 1 & 2
(B) Grade 5
(C) Grade 8
Metric Bolts and Screws
(A) Class 8.8 (B) Class 10.9
Torque Specifications

SPECIFICATIONS
2-2 Floating Deck Mid-Size Service Manual
2
Standard Torque for Dry, Zinc Plated, and Steel Fasteners (Inch Series)
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.
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.
Thread Size
Grade 1, 5, &
8 with Thin
Height Nuts
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)
SAE Grade 8 Bolts, Screws,
Studs, & Sems with Regular
Height Nuts (SAE J995
Grade 2 or Stronger Nuts)
In-lb In-lb N-cm In-lb N-cm In-lb N-cm
# 6 - 32 UNC 10 ± 2 13 ± 2 147 ± 23 15 ± 2 169 ± 23 23 ± 2 260 ± 34
# 6 - 40 UNF 17 ± 2 190 ± 20 25 ± 2 280 ± 20
# 8 - 32 UNC 13 ± 2 25 ± 5 282 ± 30 29 ± 3 330 ± 30 41 ± 4 460 ± 45
# 8 - 36 UNF 31 ± 3 350 ± 30 43 ± 4 31 ± 3
# 10 - 24 UNC 18 ± 2 30 ± 5 339 ± 56 42 ± 4 475 ± 45 60 ± 6 674 ± 70
#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
ft-lb ft-lb N-m ft-lb N-m ft-lb N-m
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
Standard Torque for Dry, Zinc Plated and Steel Fasteners (Inch Series)

SPECIFICATIONS
2-3Floating Deck Mid-Size Service Manual
2
Standard Torque for Dry, Zinc, and Steel Fasteners (Metric Fasteners)
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.
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.
Thread Size
Class 8.8 Bolts, Screws, and Studs with
Regular Height Nuts
(Class 8 or Strong Nuts)
Class 10.9 Bolts, Screws, and Studs with
Regular Height Nuts (
Class 10 or Strong Nuts)
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
Standard Torque for Dry, Zinc and Steel Fasteners (Metric Fasteners)

SPECIFICATIONS
2-4 Floating Deck Mid-Size Service Manual
2
Other Torque Specifications
SAE Grade 8 Steel Set Screws
Thread Cutting Screws
(Zinc Plated Steel)
Conversion Factors
in-lb X 11.2985 = N-cm
ft-lb X 1.3558 = N-m
Wheel Bolts and Lug Nuts
** For steel wheels and non-lubricated fasteners.
Thread Cutting Screws
(Zinc Plated Steel)
* Hole size, material strength, material thickness and
finish must be considered when determining specific
torque values. All torque values are based on non-
lubricated fasteners.
N-cm X - 0.08851 = in-lb
N-cm X 0.73776 = ft-lb
Thread Size
Recommended Torque
Square Head Hex Socket
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
Type 1, Type 23, or Type F
Thread Size Baseline Torque*
No. 6 - 32 UNC 20 ± 5 in-lb
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
Thread Size Recommended Torque**
7/16 - 20 UNF
Grade 5 65 ± 10 ft-lb 88 ± 14 N-m
1/2 - 20 UNF
Grade 5 80 ± 10 ft-lb 108 ± 14 N-m
M12 X 1.25
Class 8.8 80 ± 10 ft-lb 108 ± 14 N-m
M12 X 1.5
Class 8.8 80 ± 10 ft-lb 108 ± 14 N-m
Thread
Size
Threads per Inch
Baseline Torque*
Type A Type B
No. 6 18 20 20 ± 5 in-lb
No. 8 15 18 30 ± 5 in-lb
No. 10 12 16 38 ± 7 in-lb
No. 12 11 14 85 ± 15 in-lb
Other Torque Specifications

SPECIFICATIONS
2-5Floating Deck Mid-Size Service Manual
2
Equivalents and Conversions
Decimal and 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
9/64 0.140625 3.572 41/64 0.640625 16.272
5/32 0.15625 3.969 21/32 0.65625 16.669
11/64 0.171875 4.366 43/64 0.671875 17.066
3/16 0.1875 4.762 11/16 0.6875 17.462
13/64 0.203125 5.159 45/64 0.703125 17.859
7/32 0.21875 5.556 23/32 0.71875 18.256
15/64 0.234375 5.953 47/64 0.734375 18.653
1/4 0.2500 6.350 3/4 0.7500 19.050
17/64 0.265625 6.747 49/64 0.765625 19.447
9/32 0.28125 7.144 25/32 0.78125 19.844
19/64 0.296875 7.541 51/64 0.796875 20.241
5/16 0.3125 7.541 13/16 0.8125 20.638
21/64 0.328125 8.334 53/64 0.828125 21.034
11/32 0.34375 8.731 27/32 0.84375 21.431
23/64 0.359375 9.128 55/64 0.859375 21.828
3/8 0.3750 9.525 7/8 0.8750 22.225
25/64 0.390625 9.922 57/64 0.890625 22.622
13/32 0.40625 10.319 29/32 0.90625 23.019
27/64 0.421875 10.716 59/64 0.921875 23.416
7/16 0.4375 11.112 15/16 0.9375 23.812
29/64 0.453125 11.509 61/64 0.953125 24.209
15/32 0.46875 11.906 31/32 0.96875 24.606
31/64 0.484375 12.303 63/64 0.984375 25.003
1/2 0.5000 12.700 1 1.000 25.400
1 mm = 0.03937 in. 0.001 in. = 0.0254 mm
Equivalents and Conversions

SPECIFICATIONS
2-6 Floating Deck Mid-Size Service Manual
2
U.S. to Metric Conversions
To Convert Into Multiply By
Linear
Measurement
Miles
Yards
Feet
Feet
Inches
Inches
Inches
Kilometers
Meters
Meters
Centimeters
Meters
Centimeters
Millimeters
1.609
0.9144
0.3048
30.48
0.0254
2.54
25.4
Area
Square Miles
Square Feet
Square Inches
Acre
Square Kilometers
Square Meters
Square Centimeters
Hectare
2.59
0.0929
6.452
0.4047
Volume
Cubic Yards
Cubic Feet
Cubic Inches
Cubic Meters
Cubic Meters
Cubic Centimeters
0.7646
0.02832
16.39
Weight
Tons (Short)
Pounds
Ounces
Metric Tons
Kilograms
Grams
0.9078
0.4536
28.3495
Pressure Pounds/Sq. In. Kilopascal 6.895
Work
Foot-pounds
Foot-pounds
Inch-pounds
Newton-Meters
Kilogram-Meters
Kilogram-Centimeters
1.356
0.1383
1.152144
Liquid Volume Quarts
Gallons
Liters
Liters
0.9463
3.785
Liquid Flows Gallons/Minute Liters/Minute 3.785
Temperature Fahrenheit Celsius 1. Subtract 32°
2. Multiply by 5/9
U.S. to Metric Conversions

SPECIFICATIONS
2-7Floating Deck Mid-Size Service Manual
Models:
Model Engine Deck
30284 17 hp Kawasaki 36”
30286 17 hp Kawasaki 40”
30288 19 hp Kawasaki 48”
30289 19 hp Kawasaki 52”
30280 23 hp Kawasaki 60”
Engines:
17 hp (12.7 kW) 19 hp (14.2 kW) 23 hp (17.2 kW)
Make Kawasaki Kawasaki Kawasaki
Model FH541V FH580V FH680V
Hi-Idle 3600 rpm 3600 rpm 3600 rpm
Starter Electric Electric Electric
Oil Capacity 3.8 pint (1.8L) 3.8 pint (1.8L) 4.0 pint (1.9L)
Fuel System:
4.8 gallons (18 liters) fuel tank capacity
Traction Drives:
Traction Control: Toro Pistol Grip Control System
Hydraulic Pump: Two Hydro-Gear Model PG
Hydraulic Wheel Motor: Two Parker TEO-195 / Model 30280: Parker TEO-230
Hydraulic Oil Filter: 10 Micron Automotive Spin-On Type
Hydraulic Fluid: Synthetic, 15w50
Hydraulic Fluid Capacity: 2.1 quarts (1.9 liters)
Parking Brake: Standard equipment
Ground Speed: (MPH/kmh) Variable, 0 to 6.35 MPH (10kmh) Fwd / 0 to 2.5 (4kmh) Rev
Hourmeter with Service Indicator Standard equipment
2
Hydro with Pistol Grip Controls
Output (Max. @ 3600 RPM)

SPECIFICATIONS
2-8 Floating Deck Mid-Size Service Manual
2
Wheels and Tires:
Front Castor Tires: 9x3.5-4, 4 ply, smooth tread, semi-pneumatic with needle bearings and grease fittings /
Model 30280: 11x4.0-5 smooth tread, semi-pneumatic with tapered roller bearings
Front Castor Fork: Heavy-duty commercial design with 1-1/8” (2.8cm) diameter pivot shaft. The pivot hubs
have grease fitting for lubrication. Model 30280: 1” (2.5cm) diameter pivot shaft. The pivot
hubs have tapered roller bearings and access for lubrication.
Rear Traction Tires: 17 hp - 16x6.50-8, 4 ply with Turf Traction Tread
23 hp - 16x7.50-8, 4 ply with Turf Traction Tread
19 hp - 18x8.50-10, 4 ply with Turf Traction Tread
Mower Drive:
Mower Engagement: Engine mounted electric clutch
Clutch Adjustment: Periodic air gap adjustment required - .018” + .003” (0.45 + 0.0762mm)
PTO Drive Belt: HB section with Aramid (Kevlar) cords and dry clutching envelope
PTO Idler: Spring loaded pivot hub with grease fitting for lubrication / 36” deck includes additional
fixed idler.
Deck Drive Belt: HA section with Aramid (Kevlar) cords and standard (non-clutching) envelope
Deck Drive Idler: Spring loaded / 36” decks have non-greaseable pivot hub
40”, 48” and 52” have pivot hub with grease fitting for lubrication
Mower Decks:
HOC Range: 1” (2.5cm) to 4.50” (11cm) in 1/4” (0.6cm) increments
Blades: 36” - two .250” (6.3mm) thick heat treated steel blades
40”, 48” and 52” - 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: Sealed ball bearings permanently lubricated with high temperature grease
Construction: 7 gauge (.179 inch (4.5mm)) steel welded construction.
Blade Tip Speed: (Domestic) 36” - 18,420 ft/m calculated @ 3600 engine rpm
40” - 18,278 ft/m calculated @ 3600 engine rpm
48” - 18,503 ft/m calculated @ 3600 engine rpm
52” - 18,420 ft/m calculated @ 3600 engine rpm
60” - 18,271 ft/m calculated @ 3600 engine rpm
Anti-Scalp Rollers: 36” - 2 front mounted
40” - 3 front mounted
48” - 3 front mounted (optional 2 rear mounted)
52” & 60” - 3 front mounted, 2 rear mounted
Skid Plate: Standard
Adjustable Discharge Baffle: Standard
Rubber Discharge Chute: Standard
Hydro with Pistol Grip Controls cont.

SPECIFICATIONS
2-9Floating Deck Mid-Size Service Manual
2
Unit Dimensions:
Model No. Height* Width Deflector Down Width Deflector Raised Length* Weight**
30284 41.5” (105cm) 51.1” (130cm) 37.2” (94cm) 84.5” (214cm) 677 lbs. (302kg)
30286 41.5” (105cm) 55.5” (141cm) 41.6” (105cm) 81.3” (206cm) 677 lbs. (302kg)
30288 41.5” (105cm) 63.5” (161cm) 49.6” (126cm) 83.8” (213cm) 692 lbs. (314kg)
30289 41.5” (105cm) 67.6” (171cm) 53.7” (136cm) 83.8” (213cm) 731 lbs. (331kg)
30280 41.5” (105cm) 75.6” (192cm) 61.8” (157cm) 85.7” (217cm) 780 lbs. (354kg)
*With handle height in lowest position
**Estimated operating weight
Hydro with Pistol Grip Controls cont.