Toro greensmaster tri flex 3300 service repair manual

(Models 04510 and 04520)
Part No. 12187SL
Service Manual
GreensmasterR TriFlexTM 3300/3400
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
Greensmaster TriFlex 3300 and 3400.
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 Catalogs for your machine into
Chapter 2 of this service manual. Additional copies of
the Operator’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.
Greensmaster 3300
E The Toro Company -- 2012

Greensmaster 3300/3400
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 -- Gasoline Engine
Specifications 3 -- 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Information 3 -- 3. . . . . . . . . . . . . . . . . . . . . . . .
Fuel Evaporative Control System 3 -- 4. . . . . . . . . . . . .
Adjustments 3 -- 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service and Repairs 3 -- 8. . . . . . . . . . . . . . . . . . . . . . . .
BRIGGS & STRATTON REPAIR MANUAL FOR
4-CYCLE V-TWIN CYLINDER OHV HEAD
ENGINES
Chapter 4 -- Diesel Engine
Specifications 4 -- 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments 4 -- 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
KUBOTA WORKSHOP MANUAL, DIESEL ENGINE,
02--E3B SERIES
Chapter 5 -- Hydraulic System
Specifications 5 -- 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Schematic 5 -- 10. . . . . . . . . . . . . . . . . . . . . . .
Hydraulic Flow Diagrams 5 -- 12. . . . . . . . . . . . . . . . . . .
Special Tools 5 -- 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 5 -- 26. . . . . . . . . . . . . . . . . . . . . . . . . . .
Testing 5 -- 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments 5 -- 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service and Repairs 5 -- 56. . . . . . . . . . . . . . . . . . . . . . .
EATON, MEDIUM DUTY PISTON PUMP, REPAIR
INFORMATION, MODEL 70160 VARIABLE
DISPLACEMENT PISTON PUMP
PARKER TORQMOTORTM SERVICE PROCEDURE
(TC, TB, TE, TJ, TF, TG, TH AND TL SERIES)
SAUER/DANFOSS STEERING UNIT TYPE OSPM
SERVICE MANUAL
Chapter 6 -- Electrical System
Turf Guardian Leak Detector
System Operation 6 -- 4. . . . . . . . . . . . . . . . . . . . . . . .
Special Tools 6 -- 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 6 -- 8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical System Quick Checks 6 -- 23. . . . . . . . . . . . .
Adjustments 6 -- 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Component Testing 6 -- 26. . . . . . . . . . . . . . . . . . . . . . . .
Chapter 7 -- Chassis
Specifications 7 -- 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools 7 -- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments 7 -- 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 8 -- DPA Cutting Units
Specifications 8 -- 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools 8 -- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Factors That Can Affect Cutting Performance 8 -- 6. .
Set Up and Adjustments 8 -- 10. . . . . . . . . . . . . . . . . . . .
SafetyProductRecords
andMaintenance
GasolineElectricalChassisDPACutting
UnitsEngineSystem
Hydraulic
System
Diesel
Engine

Greensmaster 3300/3400
Table Of Contents (Continued)
Chapter 9 -- Groomer
Specifications 9 -- 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 9 -- 4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments 9 -- 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 10 -- Foldout Drawings
Hydraulic Schematic 10 -- 3. . . . . . . . . . . . . . . . . . . . . . .
Electrical Schematics 10 -- 4. . . . . . . . . . . . . . . . . . . . . .
Wire Harness Drawings 10 -- 8. . . . . . . . . . . . . . . . . . . .
GroomerFoldout
Drawings

Greensmaster 3300/3400 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

Greensmaster 3300/3400Page 1 -- 2Safety
General Safety Instructions
Greensmaster TriFlex 3300 and 3400 machines have
been tested and certified by TORO for compliance with
existing safety standards and specifications. Although
hazard control and accident prevention partially are de-
pendent 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 ofthe 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. Also tighten any loose nuts, bolts or screws to en-
sure machine is in safe operating condition.
3. Assure interlock switches are adjusted correctly so
engine cannot be started unless traction pedal is in
NEUTRAL and cutting units are DISENGAGED.
4. Since fuel is flammable, handle it carefully:
A. Use an approved fuel container.
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
the fuel tank.
E. Wipe up any spilled fuel.

While Operating
1. Sit on the seat when starting and operating the ma-
chine.
2. Before starting the engine:
A. Sit on the seat, make sure cutting units are disen-
gaged.
B. Verify that functional control lever is in neutral.
C. Verify that parking brake is applied.
D. Proceed to start engine.
E. After engine is started, release parking brake and
keep foot off traction pedal. Machine must not move.
If movement is evident, the traction pedal linkage is
adjusted incorrectly; therefore, shut engine off and
adjust traction pedal linkage until machine does not
move when traction pedal is released.
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 (if equipped) while engine is running or soon af-
ter it is stopped. These areas could be hot enough to
cause burns.
5. Before getting off the seat:
A. Make sure cutting units are disengaged.
B. Verify that functional control lever is in neutral.
C. Apply the parking brake.
D. Stop the engine and remove key from ignition
switch.
E. Toro recommends that anytime the machine is
parked (short or long term), the cutting units should
be lowered to the ground. This relieves pressure
from the hydraulic lift circuit and eliminates the risk of
cutting units accidentally lowering to the ground.
F. Do not park the machine on slopes unless wheels
are chocked or blocked.
Safety

Maintenance and Service
1. The Traction Unit and Cutting Unit Operator’s Manu-
als provide information regarding the operation, general
maintenance and maintenance intervals for your
Greensmaster machine. Refer to these publications for
additional information when servicing the machine.
2. Before servicing or making adjustments, lower cut-
ting units, stop engine, apply 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 frompin 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 units 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 the body away from cutting units and other mov-
ing parts. Keep bystanders away.
11.Do not overspeed the engine by changing governor
setting. To assure safety and accuracy, check maximum
engine speed.
12.Shut engine off before checking or adding oil to the
engine 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.When welding on machine, disconnect both battery
cables to prevent damage to machine electronic equip-
ment. Disconnect negative battery cable first and posi-
tive cable last. Also, disconnect the wire harness
connector from the TEC controller and the alternator
connector(s). This will prevent damage to the electrical
system of your Greensmaster.
17.At the time of manufacture, the machine conformed
to the safety standards for riding mowers. To assure op-
timum performance and continued safety certification of
the machine, use genuine Toro replacement parts and
accessories. Replacement parts and accessories made
by other manufacturers may result in non-conformance
with the safety standards and the warranty may be
voided.
18.When changing attachments, tires or performing
other service, use correct blocks, hoists and jacks.
Make sure machine is parked on a solid level surface
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).

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 orblock 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.
Front End Jacking
1. Apply parking brake and chock rear tire to prevent
the machine from moving.
2. Position jack securely under the frame jacking point:
A. The left side jacking point is the frame channel
under the step behind the LH front wheel (Fig. 1).
B. The right side jacking point is the frame bracket
behind the RH front wheel (Fig. 2).
3. Jack front of machine off the ground.
4. Position appropriate jack stands under the frame as
close to the wheel as possible to support the machine.
Rear End Jacking
1. Apply parking brake and chock both front tires to pre-
vent the machine from moving.
2. Place jack securely under the rear jacking point on
the rear steering fork (Fig. 3).
3. Jack rear of machine off the ground.
4. Position appropriate jack stands under the frame to
support the machine.
1. LH front wheel 2. Jacking point
Figure 1
2
1
1. RH front wheel 2. Jacking point
Figure 2
2
1
1. Rear steering fork 2. Rear jacking point
Figure 3
2
1
Safety

Safety and Instruction Decals
Numerous safety and instruction decals are affixed to
the traction unit and the cutting units of Greensmaster
TriFlex 3300 and 3400 machines. If any decal becomes
illegible or damaged, install a new decal. Part numbers
are listed in your Parts Catalog and Operator’s Manual.
Order replacement decals from your Authorized Toro
Distributor.

Greensmaster 3300/3400 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 Torque 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 Records
Insert a copy of the Traction Unit and Cutting Unit Oper-
ator’s Manuals and Parts Catalog for your Greensmas-
ter at the end of this chapter. Additionally, if any optional
equipment or accessories have been installed to your
machine, insert the Installation Instructions, Operator’s
Manuals and Parts Catalogs for those options at the end
of this chapter.
Maintenance
Maintenance procedures and recommended service in-
tervals for your Greensmaster are covered in the Trac-
tion Unit Operator’s Manual. Maintenance procedures
and recommended service intervals for the Greensmas-
ter Cutting Units are covered in the Cutting Unit Opera-
tor’s Manual. Refer to these publications when
performing regular equipment maintenance. Refer to
the Engine Operator’s Manual for additional engine spe-
cific maintenance procedures.
ProductRecords
andMaintenance

0.09375
Greensmaster 3300/3400Page 2 -- 2Product Records and Maintenance
Equivalents and Conversions

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 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,
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
the lines match up.
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 from 72
to 89 ft--lb.
Figure 3
(effective length of
torque wrench)
TORQUE CONVERSION FACTOR = A / B
A
B
(effective length of torque
Torque wrenchOffset wrench
wrench + offset wrench)
ProductRecords
andMaintenance

Standard Torque for Dry, Zinc Plated and Steel Fasteners (Inch Series)
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)
in--lb in--lb N--cm in--lb N--cm in--lb N--cm
# 6 -- 32 UNC
10 + 2 13 + 2 147 + 23
15 + 2 170 + 20 23 + 2 260 + 20
# 6 -- 40 UNF
10 + 2 13 + 2 147 + 23
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
13 + 2 25 + 5 282 + 30
31 + 3 350 + 30 43 + 4 485 + 45
# 10 -- 24 UNC
18 + 2 30 + 5 339 + 56
42 + 4 475 + 45 60 + 6 675 + 70
# 10 -- 32 UNF
18 + 2 30 + 5 339 + 56
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 + 17 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 95 + 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 + 34 375 + 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
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 mini-
mum proof load specified in SAE J429. The tolerance is
approximately + 10% of the nominal torque value. Thin
height nuts include jam nuts.

Standard Torque for Dry, Zinc Plated and Steel Fasteners (Metric Fasteners)
Thread Size
Class 8.8 Bolts, Screws and Studs with
Regular Height Nuts
Class 10.9 Bolts, Screws and Studs with
Regular Height NutsThread Size Regular Height Nuts
(Class 8 or Stronger Nuts)
Regular Height Nuts
(Class 10 or Stronger Nuts)
M5 X 0.8 57 + 5 in--lb 640 + 60 N--cm 78 + 7 in--lb 885 + 80 N--cm
M6 X 1.0 96 + 9 in--lb 1018 + 100 N--cm 133 + 13 in--lb 1500 + 150 N--cm
M8 X 1.25 19 + 2 ft--lb 26 + 3 N--m 27 + 2 ft--lb 36 + 3 N--m
M10 X 1.5 38 + 4 ft--lb 52 + 5 N--m 53 + 5 ft--lb 72 + 7 N--m
M12 X 1.75 66 + 7 ft--lb 90 + 10 N--m 92 + 9 ft--lb 125 + 12 N--m
M16 X 2.0 166 + 15 ft--lb 225 + 20 N--m 229 + 22 ft--lb 310 + 30 N--m
M20 X 2.5 325 + 33 ft--lb 440 + 45 N--m 450 + 37 ft--lb 610 + 50 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.
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.
ProductRecords
andMaintenance

Other Torque Specifications
SAE Grade 8 Steel Set Screws
Thread Size
Recommended Torque
Thread Size
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
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
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
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*Size
Type A Type B
Baseline Torque*
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
*Hole size,materialstrength,materialthickness 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

Greensmaster 3300 Page 3 -- 1 Gasoline Engine
Chapter 3
Gasoline Engine
Table of Contents
SPECIFICATIONS 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION 3. . . . . . . . . . . . . . . . . . . . .
Operator’s Manual 3. . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL EVAPORATIVE CONTROL SYSTEM 4. . . . . . .
ADJUSTMENTS 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Choke Cable Adjustment 7. . . . . . . . . . . . . . . . . . . . .
Throttle Cable Adjustment 7. . . . . . . . . . . . . . . . . . . .
SERVICE AND REPAIRS 8. . . . . . . . . . . . . . . . . . . . . .
Fuel Evaporative Control System (Serial Number
Below 312000000) 8. . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Evaporative Control System (Serial Number
Above 312000000) 10. . . . . . . . . . . . . . . . . . . . . . .
Fuel Tank 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Removal 14. . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Installation 16. . . . . . . . . . . . . . . . . . . . . . . .
BRIGGS & STRATTON VANGUARD V--TWIN OHV
REPAIR MANUAL
Gasoline
Engine

Greensmaster 3300Page 3 -- 2Gasoline Engine
Specifications
Item Description
Make / Designation Briggs and Stratton, 4--cycle, V--Twin Cylinder,
OHV, Air Cooled, Gasoline Engine -- Model 385447
Bore x Stroke 2.97” x 2.76” (75.5 mm x 70 mm)
Total Displacement 38.3 in3 (627 cc)
Governor Mechanical Governor
Carburetor Float Feed, Two Barrel
Fuel Pump Pulsating Crankcase Vacuum
Fuel Unleaded, regular grade gasoline
Fuel Tank Capacity 6.0 U.S. gallons (22.7 liters)
Low Idle (no load) 1650 + 100 RPM
High Idle (no load) 2920 + 50 RPM
Lubrication System Pressure Lubrication, Gear Driven Geroter Oil Pump
Engine Oil See Operator’s Manual
Crankcase Oil Capacity 1.75 U.S. quarts (1.65 liters) with new filter
Ignition System Flywheel magneto, twin electronic armatures
Spark Plugs Champion RC 14YC (or equivalent)
Spark Plug Gap 0.030” (0.76 mm)
Alternator 20/50 Amp
Dry Weight (approximate) 85 lb (39 kg)

General Information
Information about specifications, maintenance, trouble-
shooting, testing and repair of the gasoline engine used
in the Greensmaster TriFlex 3300 is included in this
chapter and the Briggs & Stratton Vanguard V--Twin
OHV Repair Manual.
Most engine repairs and adjustments require tools
which are commonly available in many service shops.
Special tools are described in the Briggs & Stratton Re-
pair Manual. The use of some specialized test equip-
ment is explained. However, the cost of the test
equipment and the specialized nature of some repairs
may dictate that the work be done at an engine repair
facility.
Service and repair parts for Briggs & Stratton Vanguard
V-Twin OHV engines are supplied through your local lo-
cal Toro distributor. If no parts list is available, be sure to
provide your distributor with the Toro model and serial
number along with the engine model and serial number.
Operator’s Manual
The Traction Unit Operator’s Manual provides informa-
tion regarding the operation, general maintenance and
maintenance intervals for your Greensmaster machine.
Refer to the Operator’s Manual for additional informa-
tion when servicing the machine.
Gasoline
Engine

Fuel Evaporative Control System
Figure 1
FRESH AIR
FILTER
CARBON
CANNISTER
FUEL
TANK
ENGINE
CHECK
VALVE
CHECK
VALVE
CHECK
VALVE
FRESH AIR
FILTER
CARBON
CANNISTER
FUEL
TANK
ENGINE
TO INTAKE
MANIFOLD
TO INTAKE
MANIFOLD
TO AIR
CLEANER
SERIAL NUMBER BELOW 312000000
SERIAL NUMBER ABOVE 312000000

The function of the fuel evaporative control system is to
collect and store evaporative emissions from the fuel
tank and engine. The evaporate control system used on
Greensmaster 3300 machines uses a carbon cannister
to collect these evaporative emissions. Fuel vapors
fromthe fueltank are vented to the canister when the en-
gine is not running. Vapors from the canister are con-
sumed when the engine is running.
The fuel tank on Greensmaster 3300 machines uses a
non--vented fuel cap. To connect the tank to the evapo-
rative control system, a fuel vent valve is positioned in
the top of the tank that allows tank venting through the
carbon cannister.
NOTE: If there is restriction in the fresh air filter, the car-
bon cannister or the fuel vent valve, the fuel tank may
distort due to venting issues. If the fuel tank returns to it’s
normal shape when the fuel cap is removed, restriction
in the evaporative control system is likely.
Components used in the evaporative control system on
Greensmaster 3300 machines changed at serial num-
ber 312000000. Figure 1 illustrates the components
used in the evaporative control system.
Machines With Serial Number Below 312000000
On machines with serial number below 312000000, the
carbon canister is mounted under the fuel tank mount
plate. One fitting at the engine intake manifold is used
to connect the evaporative system to the engine. These
machines use an inline check valve between the carbon
cannister and the engine intake manifold fitting.
Machines With Serial Number Above 312000000
On machines with serial number above 312000000, the
carbon canister is mounted between the hydraulic res-
ervoir and leak detector tank. The evaporative system
includes two (2) connections to the engine: one to the in-
take manifold and the second to the air cleaner base.
Venting hose assemblies include a check valve in two
(2) locations as shown in Figure 1.
NOTE: The check valves used on machines with serial
number above 312000000 are included as a component
of the hose assembly and are not available as a sepa-
rate part.To ensure proper operation ofcheck valves,do
not attempt to remove them from the hose assembly. If
either of these hose assemblies are removed, make
sure that they are correctly installed to insure correct op-
eration of the evaporative control system.
Gasoline
Engine

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Adjustments
Choke Cable Adjustment
1. Park machine on a level surface, disengage and low-
er cutting units, move functional control lever to neutral
(N), engage parking brake, stop the engine and remove
the key from the ignition switch. Wait for all machine
movement to stop.
2. Remove air cleaner cover and air filter from engine.
3. Move choke control on control panel while watching
choke plate in carburetor.
A. Choke plate should be fully open when choke
control is pushed in.
B. Choke plate should be fully closed when choke
control is pulled out.
4. If cable adjustment is needed, loosen cap screw and
nut that secure choke cable clamp. Reposition cable to
allow correct choke operation. Secure choke cable
clamp.
5. After adjustment, move choke control several times
to make sure that choke operation is correct.
6. Assemble air cleaner.
Throttle Cable Adjustment
1. Park machine on a level surface, disengage and low-
er cutting units, move functional control lever to neutral
(N), engage parking brake, stop the engine and remove
the key from the ignition switch. Wait for all machine
movement to stop.
2. Adjust throttle control on console to the fast position.
Inspect governor lever on engine to make sure that lever
is fully rotated and against stop on governor control.
3. If throttle cable adjustment is needed (Fig. 2):
A. Loosen cap screw that secures throttle cable
clamp on engine bracket.
B. Reposition cable to allow correct governor rota-
tion.
C. Tighten screw to secure throttle cable clamp.
4. After adjustment, move throttle control on console
from low idle to high idle to make sure that cable travel
is correct.
Figure 2
1. Throttle cable
2. Cable clamp
3. Governor control lever
21 3
Gasoline
Engine

Service and Repairs
Fuel Evaporative Control System (Serial Number Below 312000000)
Figure 3
FRONT
RIGHT
1. Flange head screw (2 used)
2. Tank mount plate
3. Fuel hose (to engine intake manifold)
4. Grommet (2 used)
5. Fuel hose (cannister to tank vent)
6. Hose clamp (3 used)
7. Carbon canister
8. Bracket
9. Flange nut (2 used)
10. Fuel hose (cannister to check valve)
11. Fuel hose
12. Fresh air filter
13. R--clamp
14. Washer head screw
15. Check valve
16. Cap screw
17. R--clamp
18. Spacer screw (attached to engine)
19. Worm clamp (4 used)
10
1
2
5
7
8
9
19
11
12
6
13
14
15
3 17
19
4
19
19
6
16
6
4
18

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