Toro Groundsmaster 4700-D Rotary Mower User manual

Category
Engine
Type
User manual

This manual is also suitable for

Form No. 14205SL Rev F
Groundsmaster
®
4500-D/4700-D
(Models 30873, 30874, 30881 and 30882)
Original Instructions (EN)
©
THE TORO COMPANY 2020
This document and all information contained herein is the sole property of The Toro Company (and/or its affiliated companies). No
intellectual property rights are granted by the delivery of this document or the disclosure of its content. This document shall not be
reproduced by a third party without the express written consent of The Toro Company (and/or the appropriate affiliated company).
Revision History
Revision
Date
Description
--
2014
Initial Issue.
A
2016
Updated Engine chapter.
B
02/2018
Updated Engine chapter, Electrical chapter and Foldout Drawings.
Added revision history.
C
05/2018
Added VA02 series planetary information.
D
03/2019
Updated Hydraulic chapter.
E
06/2019
Updated rear axle service drawings
F
06/2020
Updated Electrical chapter and Foldout Drawings.
Reader Comments
The Toro Company Technical Assistance Center maintains a continuous effort to improve the quality
and usefulness of its publications. To do this effectively, we encourage user feedback.
Please comment on the completeness, accuracy, organization, usability, and readability of this manual
by an e-mail to [email protected]
or Mail to:
Technical Publication Manager, Commercial
The Toro Company
8111 Lyndale Avenue South
Bloomington, MN 55420-1196
Phone: +1 952-887-8495
NOTES _
(Models 30873, 30874, 30881 and 30882)
Part No. 14205SL Rev. F
Service Manual
Groundsmaster
R
4500--D/4700--D
Preface
The purpose of this publication is to provide the service
technician with information for troubleshooting, testing
and repair of major systems and components on the
Groundsmaster 4500--D (Models 30873 and 30881)
and 4700--D (Models 30874 and 30882).
REFER TO THE TRACTION UNIT AND CUTTING
UNIT OPERATOR’S MANUALS FOR OPERATING,
MAINTENANCE AND ADJUSTMENT INSTRUC-
TIONS. For reference, insert a copy of the Operator’s
Manuals and Parts Catalog for your machine into Chap-
ter 2 of this service manual. Additional copies of the Op-
erator’s Manuals and Parts Catalog are available on the
internet at www.Toro.com.
The Toro Company reserves the right to change product
specifications or this publication without notice.
This safety symbol means DANGER, WARNING
or CAUTION, PERSONAL SAFETY INSTRUC-
TION. When you see this symbol, carefully read
the instructions that follow. Failure to obey the
instructions may result in personal injury.
NOTE: A NOTE will give general information about the
correct operation, maintenance, service, testing or re-
pair of the machine.
IMPORTANT: The IMPORTANT notice will give im-
portant instructions which must be followed to pre-
vent damage to systems or components on the
machine.
E Th e Toro Company -- 2014, 2016, 2018, 2019, 2020
Groundsmaster 4700--D
Groundsmaster 4500--D
Groundsmaster 4500--D/4700--D
This page is intentionally blank.
Groundsmaster 4500--D/4700--D
Table Of Contents
Chapter 1 -- Safety
General Safety Instructions 1 -- 2..................
Jacking Instructions 1 -- 5.........................
Safety and Instruction Decals 1 -- 6................
Chapter 2 -- Product Records and Maintenance
Product Records 2 -- 1...........................
Maintenance 2 -- 1...............................
Equivalents and Conversions 2 -- 2................
Torque Specifications 2 -- 3.......................
Chapter 3 -- Yanmar Diesel Engine
Specifications 3 -- 2..............................
General Information 3 -- 4........................
Service and Repairs 3 -- 12.......................
YANMAR TNV (Tier 4i) SERIES SERVICE MANUAL
YANMAR TNV (T ier 4i) SERIES TROUBLE--
SHOOTING MANUAL
YANMAR TNV (Tier 4) SERIES SERVICE MANUAL
YANMAR TNV (Tier 4) SERIES TROUBLESHOOTING
MANUAL
Chapter 4 -- Hydraulic System
Specifications 4 -- 2..............................
General Information 4 -- 3........................
Hydraulic Schematics 4 -- 10......................
Hydraulic Flow Diagrams 4 -- 12...................
Special Tools 4 -- 32.............................
T roubleshooting 4 -- 37...........................
Testi ng 4 -- 44...................................
Adjustments 4 -- 72..............................
Service and Repairs 4 -- 73.......................
DANFOSS H1 CLOSED CIRCUIT AXIAL PISTON
PUMPS SERVICE MANUAL
DANFOSS H1 CLOSED CIRCUIT AXIAL PISTON
PUMPS REPAIR INSTRUCTIONS
DANFOSS K and L FRAME VARIABLE MOTORS
SERVICE MANUAL
DANFOSS STEERING UNIT TYPE OSPM SERVICE
MANUAL
Chapter 5 -- Electrical System
General Information 5 -- 2........................
Special Tools 5 -- 6..............................
InfoCenter Display 5 -- 8..........................
T roubleshooting 5 -- 15...........................
Electrical System Quick Checks 5 -- 23.............
Adjustments 5 -- 24..............................
Component Testing 5 -- 27........................
Service and Repairs 5 -- 50.......................
Chapter 6 -- Axles, Planetaries and Brakes
Specifications 6 -- 2..............................
General Information 6 -- 3........................
Adjustments 6 -- 4...............................
Service and Repairs 6 -- 6........................
Chapter 7 -- Chassis
General Information 7 -- 2........................
Service and Repairs 7 -- 4........................
Chapter 8 -- Cutting Decks
Specifications 8 -- 2..............................
General Information 8 -- 3........................
T roubleshooting 8 -- 4............................
Special Tools 8 -- 5..............................
Adjustments 8 -- 6...............................
Service and Repairs 8 -- 8........................
Chap ter 9 -- Foldout Drawings
Electrical Drawing Designations 9 -- 2..............
Hydraulic Schematics 9 -- 3.......................
Electrical Schematics 9 -- 7.......................
Wire Harness Drawings 9 -- 17
....................
SafetyProduct Records
and Maintenance
Yanmar
Diesel Engine
Hydraulic
System
Electrical
System
Axles, Planetaries
and Brakes
Cutting Decks Chassis
Foldout
Drawings
Groundsmaster 4500--D/4700--D
This page is intentionally blank.
Groundsmaster 4500 --D/4700--D Page 1 -- 1 Safety
Chapter 1
Safety
Table of Contents
GENERAL SAFETY INSTRUCTIONS 2............
Before Operating 2............................
While Operating 3............................
Maintenance and Service 4....................
JACKING INSTRUCTIONS 5.....................
SAFETY AND INSTRUCTION DECALS 6..........
Safety
Groundsmaster 4500 --D/4700--DPage 1 -- 2Safety
General Safety Instructions
The Groundsmaster 4500-D and 4700--D have been
tested and certified by TORO for compliance with exist-
ing safety standards and specifications. Although haz-
ard control and accident prevention partially are
dependent upon the design and configuration of the ma-
chine, these factors are also dependent upon the
awareness, concern and proper training of the person-
nel involved in the operation, transport, maintenance
and storage of the machine. Improper use or mainte-
nance of the machine can result in injury or death. To re-
duce the potential for injury or death, comply with the
following safety instructions.
WARNING
To reduce the potential for injury or death,
comply with the following safety instructions.
Before Operating
1. Review and understand the contents of the Opera-
tor’s Manuals and Operator’s DVD before starting and
operating the vehicle. Become familiar with the controls
and know how to stop the vehicle and engine quickly.
Additional copies of the Operator’s Manual are available
on the internet at www.Toro.com.
2. Keep all shields, safety devices and decals in place.
If a shield, safety device or decal is defective, illegible or
damaged, repair or replace it before operating the ma-
chine.
3. Before machine operation, tighten any loose nuts,
bolts or screws to ensure machine is in safe operating
condition.
4. Assure interlock switches are adjusted correctly so
engine cannot be started unless traction pedal is in
NEUTRAL and cutting decks are DISENGAGED.
5. Since diesel fuel is flammable, handle it carefully:
A. Useanapprovedfuelcontainer.
B. Do not remove fuel tank cap while engine is hot or
running.
C. Do not smoke while handling fuel.
D. Fill fuel tank outdoors and only to within an inch of
the top of the tank, not the filler neck. Do not overfill.
E. Wipe up any spilled fuel.
Groundsmaster 4500 --D/4700--D Page 1 -- 3 Safety
While Operating
1. Sit on the seat when starting and operating the ma-
chine.
2. Before starting the engine:
A. Engage the parking brake.
B. Make sure traction pedal is in neutral and the
PTO switch is OFF (disengaged).
C. After engine is started, release parking brake and
keep foot off traction pedal. Machine must not move.
If movement is evident, there may be a problem with
the piston (traction) pump that needs to be corrected
before using the machine.
3. Do not run engine in a confined area without ade-
quate ventilation. Exhaust fumes are hazardous and
could possibly be deadly.
4. Do not touch engine, exhaust system components or
radiator while engine is running or soon after it is
stopped. These areas could be hot enough to cause
burns.
5. Before getting off the seat:
A. Ensure that traction pedal is in neutral.
B. Fully lower and dis engage cutting decks. Wait for
deck blades to stop.
C. Engage parking brake.
D. Stop engine and remove key from switch.
6. Toro recommends that anytime the machine is
parked (short or long term), the cutting decks should be
lowered to the ground. This relieves pressure from the
lift circuit and eliminates the risk o f cutting decks acci-
dentally lowering to the ground.
7. Do not park on slopes unless wheels are chocked or
blocked.
Safety
Groundsmaster 4500 --D/4700--DPage 1 -- 4Safety
Maintenance and Service
1. The Traction Unit and Cutting Deck Operator’s
Manuals provide information regarding the operation,
general maintenance and maintenance intervals for
your Groundsmaster machine. Refer to these publica-
tions for additional information when servicing the ma-
chine.
2. Before servicing or making adjustments, lower cut-
ting decks, stop engine, set parking brake and remove
key from the ignition switch.
3. Make sure machine is in safe operating condition by
keeping all nuts, bolts and screws tight.
4. Never store the machine or fuel container inside
where there is an open flame, such as near a water heat-
er or furnace.
5. Make sure all hydraulic line connectors are tight and
all hydraulic hoses and lines are in good condition be-
fore applying pressure to the hydraulic system.
6. Keep body and hands away from pin hole leaks in hy-
draulic lines that eject high pressure hydraulic fluid. Use
cardboard or paper to find hydraulic leaks. Hydraulic
fluid escaping under pressure can penetrate skin and
cause injury. Fluid accidentally injected into the skin
must be surgically removed within a few hours by a doc-
tor familiar with this form of injury or gangrene may re-
sult.
7. Before disconnecting or performing any work on the
hydraulic system, all pressure in system must be re-
lieved by stopping engine and lowering cutting decks to
the ground.
8. If major repairs are ever needed or assistance is de-
sired, contact an Authorized Toro Distributor.
9. To reduce potential fire hazard, keep engine area
free of excessive grease, grass, leaves and dirt. Clean
protective screen on machine frequently.
10.If engine must be running to perform maintenance or
an adjustment, keep hands, feet, clothing and other
parts of t he body away from cutting decks and other
moving parts. Keep bystanders away.
11. To assure safety and accuracy, check that maximum
engine speed is correct.
12.Shut engine off before checking or adding oil to the
crankcase.
13.Disconnect battery before servicing the machine.
Disconnect negative battery cable first and positive
cable last. If battery voltage is required for troubleshoot-
ing or test procedures, temporarily connect the battery.
Reconnect positive battery cable first and negative
cable last.
14.Battery acid is poisonous and can cause burns.
Avoid contact with skin, eyes and clothing. Protect your
face, eyes and clothing when working with a battery.
15.Battery gases can explode. Keep cigarettes, sparks
and flames away from the battery.
16.At the time of manufacture, the machine conformed
to the s afety standards for riding mowers. To assure op-
timum performance and continued safety certification of
the machine, use genuine Toro replacement parts and
accessories. Replacement partsandaccessoriesmade
by other manufacturers may result in non -conformance
with the safety standards and the warranty may be
voided.
17.When changing attachments, tires or performing
other service, use correct jacks, hoists and jack stands.
Make sure machine is parkedonasolidlevelsurface
such as a concrete floor. Prior to raising the machine, re-
move any attachments that may interfere with the safe
and proper raising of the machine. Always chock or
block wheels. Use appropriate jack stands to support
the raised machine. If the machine is not properly sup-
ported by jack stands, the machine may move or fall,
which may result in personal injury (see Jacking Instruc-
tions in this chapter).
18.When welding on machine, disconnect all battery
cables to prevent damage to machine electronic equip-
ment. Disconnect negative battery cable first and posi-
tive cable last. Also, disconnect wire harness connector
from the TEC controller(s), disconnect and remove the
engine ECU and disconnect the terminal connector from
the alternator. Attach welder ground cable no more than
two (2) feet (0.6 meters) from the welding location.
19.Make sure to dispose of potentially harmful waste
(e.g. fuel, oil, engine coolant, filters, battery) in an envir-
onmentally safe manner. Follow all local codes and reg -
ulations when recycling or disposing of waste.
Groundsmaster 4500 --D/4700--D Page 1 -- 5 Safety
Jacking Instructions
CAUTION
When changing attachments, tires or perform-
ing other service, use correct jacks and sup -
ports. Make sure machine is parked on a solid,
level surface such as a concrete floor. Prior to
raising machine, remove any attachments that
may interfere with the safe and proper raising of
the machine. Always chock or block wheels. Use
jack stands to support the raised machine. If the
machine is not properly supported by jack
stands, the machine may move or fall, which
may result in personal injury.
Jacking the Front End
1. Apply parking brake and chock both rear tires to pre-
vent the machine from moving.
IMPORTANT: Do not place jack, jack stands or
blocks under the wheel motors. Wheel motors can
be damaged if used for jacking or support points.
2. Position jack securely under the frame, just to the in-
side of the front tire.
3. Jack front wheel off the ground.
4. Position appropriate jack stands under the frame as
close to the wheel a s possible to support the machine.
Jacking the Rear End
1. Apply parking brake and chock both front tires to pre-
vent the machine from moving.
2. Place jack securely under the center of rear axle.
3. Jack rear of machine off the ground.
4. Position appropriate jack stands under the rear axle
to support the machine.
Safety
Groundsmaster 4500 --D/4700--DPage 1 -- 6Safety
Safety and Instruction Decals
Numerous safety and instruction decals are affixed to
the Groundsmaster 4500--D and 4700-- D. If any decal
becomes illegible or damaged, install a new decal. De-
cal part numbers are listed in your Parts Catalog.
Groundsmaster 4500 --D/4700--D
Page 2 -- 1
Product Records and Maintenance
Chapter 2
Product Records and Maintenance
Table of Contents
PRODUCT RECORDS 1.........................
MAINTENANCE 1..............................
EQUIVALENTS AND CONVERSIONS 2...........
Decimal and Millimeter Equivalents 2............
U.S. to Metric Conversions 2...................
TORQUE SPECIFICATIONS 3...................
Fastener Identification 3.......................
Using a To rque Wrench with an Offset Wrench 3..
Standard Torque for Dry, Zinc Plated and
Steel Fasteners (Inch Series) 4...............
Standard Torque for Dry, Zinc Plated and
Steel Fasteners (Metric Fasteners) 5..........
Other Torque Specifications 6..................
Conversion Factors 6.........................
Product R ecords
Insert Operator’s Manuals and Parts Catalog for your
Groundsmaster 4500--D or 4700--D at the end of this
chapter. Additionally, insert Installation Instructions,
Operator’s Manuals and Parts Catalogs for any acces-
sories that have been installed on your Groundsmaster
at the end of this section.
Maintenance
Maintenance procedures and recommended service in-
tervals for your Groundsmaster are covered in the Trac-
tion Unit and Cutting Deck Operator’s Manuals. Refer to
those publications when performing regular equipment
maintenance. Several maintenance procedures have
break--in intervals identified in the Operator’s Manuals.
Refer to the Engine Operator’s Manual for additional en-
gine specific maintenance procedures.
Product Records
and Maintenance
0.09375
Groundsmaster 4500 --D/4700--D
Page 2 -- 2
Product Records and Maintenance
Equivalents and Conversions
Groundsmaster 4500 --D/4700--D
Page 2 -- 3
Product Records and Maintenance
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 t hat
is unique to the application is clearly identified and spe-
cified in this 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 this Ser-
vice Manual. The following factors shall be considered
when applying torque: cleanliness of the fastener, use
of a thread sealant (e.g. Loctite), degree of lubrication
on the fastener, presence of a prevailing torque feature
(e.g. Nylock nut), hardness of the surface underneath
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 en-
gagement, etc.
The standard method of verifying torque shall be per-
formed 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
thelinesmatchup.
Fastener Identification
Figure 1
Grade 1 Grade 5 Grade 8
Inch Series Bolts and Screws
Figure 2
Class 8.8 Class 10.9
Metric Bolts and Screws
Using a Torque Wrench with an Offset Wrench
Use of an offset wrench (e.g. crowfoot wrench) will affect
torque wrench calibration due to the effective change of
torque wrench length. When using a torque wrench with
an offset wrench, multiply the listed torque recommen-
dation by the calculated torque conversion factor (Fig.
3) to determine proper tightening torque. Tightening
torque when using a torque wrench with an offset
wrench will be lower than the listed torque recommen-
dation.
Example: The measured effective length of the torque
wrench (distance from the center of the handle to the
center of the square drive) is 18”.
The measured effective length of the torque wrench with
the offset wrench installed (distance from the center of
the handle to the center of the offset wrench) is 19”.
The calculated torque conversion factor for this torque
wrench with this offset wrench would be 18 / 19 = 0.947.
If the listed torque recommendation for a fastener is
from 76 to 94 ft--lb, the proper torque when using this
torque wrench with an offset wrench would be f rom 72
to 89 ft--lb.
Figure 3
(effective length of
torque wrench)
TORQUE CONVERSION FACTOR = A / B
A
B
(effective length o f torque
Torque wrenchOffset wrench
wrench + offset wrench)
Product Records
and Maintenance
Groundsmaster 4500 --D/4700--D
Page 2 -- 4
Product Records and Maintenance
Standard Torque for Dry, Zinc Plated and Steel Fasteners (Inch Series)
Thread Size
Grade 1, 5 &
8withThin
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 5 or Stronger Nuts)
in--lb in--lb N--cm in--lb N--cm in--lb N--cm
#6--32UNC
10 + 2 13 + 2 147 + 23
15 + 2 169 + 23 23 + 3 262 + 34
#6--40UNF 17 + 2 192 + 23 25 + 3 282 + 34
#8--32UNC
13 + 2 25 + 5 282 + 30
29 + 3 328 + 34 41 + 5 463 + 56
#8--36UNF 31 + 4 350 + 45 43 + 5 486 + 56
#10--24UNC
18 + 2 30 + 5 339 + 56
42 + 5 475 + 56 60 + 6 678 + 68
#10--32UNF 48 + 5 542 + 56 68 + 7 768 + 79
1/4 -- 20 UNC 48 + 7 53 + 7 599 + 79 100 + 10 1130 + 113 140 + 15 1582 + 169
1/4 -- 28 UNF 53 + 7 65 + 10 734 + 113 115 + 12 1299 + 136 160 + 17 1808 + 192
5/16 -- 18 UNC 115 + 15 105 + 15 1186 + 169 200 + 25 2260 + 282 300 + 30 3390 + 339
5/16 -- 24 UNF 138 + 17 128 + 17 1446 + 192 225 + 25 2542 + 282 325 + 33 3672 + 373
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 + 5 58 + 7
3/8 -- 24 UNF 17 + 2 18 + 2 24 + 3 35 + 4 47 + 5 50 + 6 68 + 8
7/16 -- 14 UNC 27 + 3 27 + 3 37 + 4 50 + 5 68 + 7 70 + 7 95 + 9
7/16 -- 20 UNF 29 + 3 29 + 3 39 + 4 55 + 6 75 + 8 77 + 8 104 + 11
1/2 -- 13 UNC 30 + 3 48 + 7 65 + 9 75 + 8 102 + 11 105 + 11 142 + 15
1/2 -- 20 UNF 32 + 4 53 + 7 72 + 9 85 + 9 115 + 12 120 + 12 163 + 16
5/8 -- 11 UNC 65 + 10 88 + 12 119 + 16 150 + 15 203 + 20 210 + 21 285 + 28
5/8 -- 18 UNF 75 + 10 95 + 15 129 + 20 170 + 18 230 + 24 240 + 24 325 + 33
3/4 -- 10 UNC 93 + 12 140 + 20 190 + 27 265 + 27 359 + 37 375 + 38 508 + 52
3/4 -- 16 UNF 115 + 15 165 + 25 224 + 34 300 + 30 407 + 41 420 + 43 569 + 58
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 + 48 644 + 65 667 + 66 904 + 89
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
engine oil 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 mini-
mum proof load specified in SAE J429. The tolerance is
approximately +
10% of the nominal torque value. Thin
height nuts include jam nuts.
Groundsmaster 4500 --D/4700--D
Page 2 -- 5
Product Records and Maintenance
Standard Torque for Dry, Zinc Plated and Steel Fasteners (Metric Series)
Thread Size
Class 8.8 Bolts, Screws and Studs with
Regular Height Nuts
(Class 8 or Stronger Nuts)
Class 10.9 Bolts, Screws and Studs with
Regular Height Nuts
(Class 10 or Stronger Nuts)
M5 X 0.8 57 + 6in--lb 644 + 68 N--cm 78 + 8in--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 + 2ft--lb 26 + 3N--m 28 + 3ft--lb 38 + 4N--m
M10 X 1.5 38 + 4ft--lb 52 + 5N--m 54 + 6ft--lb 73 + 8N--m
M12 X 1.75 66 + 7ft--lb 90 + 10 N--m 93 + 10 ft-- lb 126 + 14 N--m
M16 X 2.0 166 + 17 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 + 46 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
engine oil 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.
Product Records
and Maintenance
Groundsmaster 4500 --D/4700--D
Page 2 -- 6
Product Records and Maintenance
Other Torque Specifications
SAE Grade 8 Steel Set Screws
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 + 3ft--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 + 5in--lb
No. 8 -- 32 UNC 30 + 5in--lb
No. 10 -- 24 UNC 38 + 7in--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
Wheel Bolts and Lug Nuts
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
** For steel wheels and non--lubricated fasteners.
Thread Cutting Screws
(Zinc Plated Steel)
Thread
Size
Threads per Inch
Baseline Torque*
Type A Type B
No. 6 18 20 20 + 5in--lb
No. 8 15 18 30 + 5in--lb
No. 10 12 16 38 + 7in--lb
No. 12 11 14 85 + 15 in--lb
* Hole size, material strength, material thickness and fin-
ish must be considered when determining specific
torque values. All torque values are based on non--lubri-
cated fasteners.
Conversion Factors
in--lb X 11.2985 = N--cm N--cm X 0.08851 = in--lb
ft--lb X 1.3558 = N--m N--m X 0.7376 = ft--lb
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Toro Groundsmaster 4700-D Rotary Mower User manual

Category
Engine
Type
User manual
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