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PRELIMINARY – For Toro Distributor and Toro Company use only.
Service Manual
ProForceR Debris Blower
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
ProForce Debris Blower.
REFER TO THE OPERATOR’S MANUALS FOR OPERATING, MAINTENANCE AND ADJUSTMENT
INSTRUCTIONS. Space is provided in Chapter 2 of this
book to insert the Operator’s Manuals and Parts Catalogs for your machine. Replacement Operator’s Manuals are available on the internet at www.toro.com or by
sending complete Model and Serial Number to:
The Toro Company
Attn. Technical Publications
8111 Lyndale Avenue South
Minneapolis, MN 55420
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 INSTRUCTION. 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 repair of the machine.
IMPORTANT: The IMPORTANT notice will give important instructions which must be followed to prevent damage to systems or components on the
machine.
Part No.
E The Toro Company − 2008
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PRELIMINARY – For Toro Distributor and Toro Company use only.
This page is intentionally blank.
ProForce Debris Blower
Page 3
PRELIMINARY – For Toro Distributor and Toro Company use only.
Table Of Contents
Chapter 1 − Safety
Safety Instructions 1 − 2. . . . . . . . . . . . . . . . . . . . . . . . . .
Safety and Instruction Decals 1 − 4. . . . . . . . . . . . . . . .
Chapter 2 − Product Records and Maintenance
Product Records 2 − 1. . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 2 − 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equivalents and Conversions 2 − 2. . . . . . . . . . . . . . . .
Torque Specifications 2 − 3. . . . . . . . . . . . . . . . . . . . . . .
Chapter 3 − Engine
Specifications 3 − 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service and Repairs 3 − 2. . . . . . . . . . . . . . . . . . . . . . . .
KOHLER ENGINE SERVICE MANUAL
Chapter 4 − Electrical System
Service and Repairs 4 − 2. . . . . . . . . . . . . . . . . . . . . . . .
Chapter 5 − Blower Assembly
Service and Repairs 5 − 2. . . . . . . . . . . . . . . . . . . . . . . .
Chapter 6 − Chassis
Service and Repairs 6 − 2. . . . . . . . . . . . . . . . . . . . . . . .
Chapter 7 − Electrical Diagrams
SafetyProduct Records
and Maintenance
EngineElectricalBlower
System
Electrical Schematic 7 − 3. . . . . . . . . . . . . . . . . . . . . . . .
Harness Drawings 7 − 3. . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly
Chassis
Electrical
Diagrams
ProForce Debris Blower
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ProForce Debris Blower
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PRELIMINARY – For Toro Distributor and Toro Company use only.
Chapter 1
Safety
Table of Contents
SAFETY INSTRUCTIONS 2. . . . . . . . . . . . . . . . . . . . . .
Before Operating 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
While Operating 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance and Service 4. . . . . . . . . . . . . . . . . . . .
SECURING PROFORCE DEBRIS BLOWER TO
TOW VEHICLE 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JACKING INSTRUCTIONS 5. . . . . . . . . . . . . . . . . . . . .
SAFETY AND INSTRUCTION DECALS 6. . . . . . . . . .
Safety
ProForce Debris Blower Page 1 − 1 Safety
Page 6
PRELIMINARY – For Toro Distributor and Toro Company use only.
Safety Instructions
The ProForce Debris Blower is designed and tested to
offer safe service when operated and maintained properly. Although hazard control and accident prevention
partially are dependent upon the design and configuration of the machine, these factors are also dependent
upon the awareness, concern and proper training of the
personnel involved in the operation, transport, maintenance and storage of the machine. Improper use or
maintenance of the machine can result in injury or
death. To reduce the potential for injury or death, comply
with the following safety instructions.
Before Operating
To reduce the potential for injury or death, comply with the following safety instructions.
WARNING
1. Read and understand the contents of the Operator’s
Manual before starting and operating the ProForce Debris Blower. Become familiar with the controls and know
how to stop the machine quickly. A replacement Operator’s Manual is available on the Internet at www.Toro.com or by sending the complete model and serial
number to:
The Toro Company
Attn. Technical Publications
8111 Lyndale Avenue South
Bloomington, Minnesota 55420−1196
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
machine.
3. Make sure that the tow vehicle is carefully selected
to assure the best performance and safe operation of
the ProForce Debris Blower.
4. Make sure that operator is familiar with safe tow vehicle operation.
5. Tighten any loose nuts, bolts, screws or other fasteners to ensure machine is in safe operating condition.
6. Make sure that the ProForce Debris Blower is properly attached to tow vehicle.
ProForce Debris BlowerPage 1 − 2Safety
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PRELIMINARY – For Toro Distributor and Toro Company use only.
While Operating
1. Operator should be on the tow vehicle when starting
the engine and when operating the ProForce Debris
Blower. Stay away from the blower when it is engaged.
2. Before starting the engine on the tow vehicle, refer
to tow vehicle Operator’s Manual for safe starting procedures.
3. Do not run engine of ProForce Debris Blower or tow
vehicle in a confined area without adequate ventilation.
Exhaust fumes are hazardous and could possibly be
deadly.
4. Be aware of the blower nozzle direction and do not
point it at anyone. Keep away from the nozzle opening
during machine operation.
5. Do not touch engine or exhaust system while the Debris Blower engine is running or soon after it is stopped.
These areas could be hot enough to cause burns.
6. If abnormal vibration is detected, shut off blower and
stop tow vehicle immediately. Determine source of
vibration and correct problem(s) before resuming the
use of blower.
7. While operating, the combination of the tow vehicle
and the ProForce Debris Blower may exceed noise levels of 85dB(A) at the operator position. Hearing protection is recommended for prolonged exposure to reduce
the potential of permanent hearing damage.
8. Before leaving the operator’s position of the tow vehicle:
A. Park on level surface and stop ProForce Debris
Blower engine. Make sure that all machine motion
has stopped.
B. Ensure that tow vehicle transmission or traction
lever is in neutral, set parking brake, stop engine and
remove key from ignition switch.
C. Wait for all moving parts to stop before leaving
the tow vehicle.
D. If blower use is complete, turn ProForce Debris
Blower ignition switch OFF and remove key from
switch.
ProForce Debris Blower Page 1 − 3 Safety
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PRELIMINARY – For Toro Distributor and Toro Company use only.
Maintenance and Service
1. Before servicing or making adjustments to ProForce
Debris Blower, position ProForce Debris Blower on a
level surface and stop blower engine. If blower is attached to tow vehicle, apply tow vehicle parking brake,
stop engine and remove key from the ignition switch.
Also, turn blower ignition switch OFF and remove key
from switch.
2. To prevent unexpected machine operation, disconnect battery before performing any Debris Blower service. Disconnect negative battery cable first and
positive cable last. If battery voltage is required for troubleshooting or test procedures, temporarily connect the
battery. Reconnect positive battery cable first and negative cable last.
3. Make sure machine is in safe operating condition by
keeping all nuts, bolts, screws and other fasteners tight.
4. Use care when checking or servicing the blower:
wear gloves and use caution.
5. Before disconnecting ProForce Debris Blower from
tow vehicle, park blower on a hard, level surface and
chock blower wheels to prevent machine movement.
9. Shut Debris Blower engine off before checking or
adding oil to the crankcase.
10.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.
11. Battery gases can explode. Keep cigarettes, sparks
and flames away from the battery.
12.After servicing the ProForce Debris Blower, be sure
that all guards and covers are properly installed.
13.When changing tires or performing other service,
use correct supports, hoists and jacks. Make sure machine is parked on a solid level surface such as a concrete floor. Always chock or block wheels. Use suitable
jack stands to support the raised machine. If the machine is not properly supported by suitable jack stands,
the machine may move or fall, which may result in personal injury (see Jacking Instructions in this chapter).
14.If welding on the machine is necessary, disconnect
the negative battery cable to prevent electrical system
damage.
6. To reduce potential fire hazard, keep engine area
free of excessive grease, grass, leaves and dirt.
7. If engine must be running to perform maintenance or
to make an adjustment, keep hands, feet, clothing and
other parts of the body away from moving parts on the
Debris Blower. Keep bystanders away.
8. Do not overspeed the engine by changing governor
setting. To assure safety and accuracy, check maximum
engine speed with a tachometer.
15.If major repairs are ever needed or assistance is desired, contact an Authorized Toro Distributor.
16.At the time of manufacture, the machine conformed
to all applicable safety standards. To assure optimum
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.
ProForce Debris BlowerPage 1 − 4Safety
Page 9
PRELIMINARY – For Toro Distributor and Toro Company use only.
Securing ProForce Debris Blower to Tow Vehicle
While operating or servicing the ProForce Debris Blower, make sure that blower is properly secured to tow vehicle (Fig. 1). Refer to your Operator’s Manual for the
correct procedure for attaching blower to tow vehicle.
1
1. Tow vehicle hitch
2. Hitch pin
2
3
Figure 1
3. Hairpin clip
Jacking Instructions
CAUTION
When changing tires or performing other service, use suitable hoists and jacks to support
the ProForce Debris Blower. Make sure machine is parked on a solid level surface such as
a concrete floor. Always chock or block wheels.
Use suitable 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.
1. Position ProForce Debris Blower on a level surface
with blower attached to tow vehicle. Engage tow vehicle
parking brake, stop engine and remove key from the
ignition switch. Make sure that blower engine is off.
Chock blower wheels to prevent the machine from moving.
2. Position jack securely under the main frame of the
blower (Fig. 2). Do not use the axle as a jacking point.
3. Carefully jack machine off the ground.
4. Position jack stands under the main frame to support
the ProForce Debris Blower.
2
1
Figure 2
1. Wheel 2. Frame jacking point
ProForce Debris Blower Page 1 − 5 Safety
Page 10
PRELIMINARY – For Toro Distributor and Toro Company use only.
Safety and Instruction Decals
Numerous safety and instruction decals are affixed to
the ProForce Debris Blower. If any decal becomes illegible or damaged, install a new decal. Part numbers for
replacement decals are listed in your Parts Catalog. Order replacement decals from your Authorized Toro Distributor.
ProForce Debris BlowerPage 1 − 6Safety
Page 11
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower 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. . . . . . . . . . . . . . . . . . . . . . .
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 Operator’s Manual and Parts Catalog for your
ProForce Debris Blower at the end of this chapter. Additionally, if any optional equipment or accessories have
been installed to your blower, 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 intervals for the ProForce Debris Blower are covered in
the Operator’s Manual. Refer to that publication when
performing regular equipment maintenance.
Product Records
and Maintenance
Page 12
PRELIMINARY – For Toro Distributor and Toro Company use only.
0.09375
ProForce Debris BlowerPage 2 − 2Product Records and Maintenance
Equivalents and Conversions
Page 13
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower 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 that
is unique to the application is clearly identified and specified 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 Service 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 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
Grade 1 Grade 5 Grade 8
Inch Series Bolts and Screws
Figure 2
Class 8.8 Class 10.9
Metric Bolts and Screws
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PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 2 − 4Product Records and Maintenance
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)
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 − 32 UNC
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
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
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 minimum proof load specified in SAE J429. The tolerance is
approximately +
10% of the nominal torque value. Thin
height nuts include jam nuts.
Page 15
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 2 − 5 Product Records and Maintenance
Standard Torque for Dry, Zinc Plated and Steel Fasteners (Metric Fasteners)
Class 8.8 Bolts, Screws and Studs with
Class 10.9 Bolts, Screws and Studs with
Thread 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.
Page 16
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 2 − 6Product Records and Maintenance
Other Torque Specifications
SAE Grade 8 Steel Set Screws
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
Threads per Inch
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, material strength, material thickness & finish
must be considered when determining specific torque
values. All torque values are based on non−lubricated
fasteners.
Conversion Factors
in−lb X 11.2985 = N−cm N−cm X 0.08851 = in−lb
ft−lb X 1.3558 = N−mN−m X 0.7376 = ft−lb
Page 17
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 3 − 1 Engine
Chapter 3
Engine
Table of Contents
SPECIFICATIONS 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION 3. . . . . . . . . . . . . . . . . . . . .
Operator’s Manual 3. . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Power 3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE AND REPAIRS 5. . . . . . . . . . . . . . . . . . . . . .
Cooling System 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Tank 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Removal 9. . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Installation 10. . . . . . . . . . . . . . . . . . . . . . . .
KOHLER ENGINE SERVICE MANUAL
Engine
Page 18
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 3 − 2Engine
Specifications
Item Description
Make / Designation Kohler, 4−cycle, V−Twin cylinder,
OHV, air cooled, Model CH740S
Bore x Stroke 3.27 in x 2.64 in (83 mm x 67 mm)
Total Displacement 44 in3 (725 cc)
Compression Ratio 9.0:1
Governor Electronic
Low Idle Speed (no load) 1800 + 100 RPM
High Idle Speed (no load) 3450 + 100 RPM
Carburetor Float feed, fixed main jet, solenoid fuel shut−off
Fuel Unleaded, regular grade gasoline
Fuel Pump Mechanical
Fuel Tank Capacity 5 U.S. gal (18.9 l)
Air Cleaner Dual element
Lubrication System Pressure lubrication with oil cooler
Crankcase Oil Capacity 2.0 U.S. qt (1.9 l)
Engine Oil See Operator’s Manual
Ignition System Flywheel magneto, twin electronic armatures with ignition advance
Spark Plug Champion RC12YC (resister style)
Spark Plug Gap 0.030 in (0.76 mm)
Starter 12 VDC, solenoid shift
Alternator 12 VDC / 15 Amps
Dry Weight 94 lbs (43 kg)
Page 19
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 3 − 3 Engine
General Information
This Chapter gives information about specifications,
maintenance, troubleshooting, testing and repair of the
gasoline engine used in the ProForce Debris Blower.
Most repairs and adjustments require tools which are
commonly available in many service shops. Special
tools are described in the KOHLER ENGINE SERVICE
MANUAL that is included at the end of this Chapter. The
use of some specialized test equipment 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 Kohler engines are supplied
through your local Toro distributor. Be prepared to provide your distributor with the Toro model and serial number.
Operator’s Manual
The Operator’s Manual provides information regarding
the operation, general maintenance and maintenance
intervals for your ProForce Debris Blower machine. Refer to the Operator’s Manual for additional information
when servicing the machine.
Electrical Power
Electrical power to ProForce Debris Blower components is controlled by the Remote Control Module. To
make sure that machine operation does not occur unexpectedly, disconnect the negative battery cable from the
battery before performing any machine service.
Reattach the disconnected negative battery cable as
the last step in any repair. Secure cable with flange nut.
Torque nut from from 10 to 15 ft−lb (14 to 20 N−m).
Page 20
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 3 − 4Engine
This page is intentionally blank.
Page 21
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 3 − 5 Engine
Service and Repairs
Cooling System
To ensure proper engine cooling, make sure the grass
screen, cooling fins and other external surfaces of the
engine are kept clean at all times.
IMPORTANT: The engine that powers the ProForce
Debris Blower is air−cooled. Operating the engine
with dirty or plugged cooling fins or a plugged or
dirty blower housing will result in engine overheating and damage.
1. Park machine on a level surface. Make sure engine
is OFF. Chock wheels to prevent machine from moving.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
IMPORTANT: Never clean engine with pressurized
water. Water could enter and contaminate the fuel
system.
3. Clean cooling fins on both cylinder heads.
4. Clean grass screen and blower housing of dirt and
debris (Fig. 3).
5. If necessary remove blower housing from engine for
more thorough engine cleaning.
IMPORTANT: Never operate engine without the
blower housing installed. Overheating and engine
damage will result.
6. Make sure blower housing and/or engine cylinder
shrouds are installed to the engine if removed.
7. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
Figure 3
1. Cylinder head
2. Grass screen
3. Blower housing
1
2
3
1
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ProForce Debris BlowerPage 3 − 6Engine
Fuel Tank
Figure 4
1. Frame
2. Foam strip (2 used)
3. Fuel tank
4. Felt strip (2 used)
5. Flange nut (4 used)
6. Tank strap (2 used)
7. Fuel cap and gauge
8. Worm clamp
9. Fuel hose
FRONT
RIGHT
1
2
3
4
5
6
9
7
8
DANGER
Because gasoline is highly flammable, use caution when storing or handling it. Do not smoke
while filling the fuel tank. Do not fill fuel tank
while engine is running, hot, or when machine is
in an enclosed area. Always fill fuel tank outside
and wipe up any spilled fuel before starting the
engine. Store fuel in a clean, safety−approved
container and keep cap in place. Use gasoline for
the engine only; not for any other purpose.
Page 23
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ProForce Debris Blower Page 3 − 7 Engine
Check Fuel Lines and Connections
Check fuel lines and connections periodically as recommended in the Operator’s Manual. Check fuel lines for
deterioration, damage or leaking connections. Replace
hoses, clamps and connections as necessary.
Drain and Clean Fuel Tank
Drain and clean the fuel tank periodically as recommended in the Operator’s Manual. Also, drain and clean
the fuel tank if the fuel system becomes contaminated
or if the machine is to be stored for an extended period.
To clean fuel tank, flush tank out with clean solvent.
Make sure tank is free of all contaminates and debris.
Fuel Tank Removal (Fig. 4)
1. Park machine on a level surface with the engine OFF.
Chock wheels to prevent machine from moving.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Disconnect fuel hose from the fuel filter inlet.
4. Lower end of disconnected fuel line into a suitable
container and drain fuel tank.
5. After fuel tank is completely empty, remove fuel hose
from tank outlet at bottom of tank.
6. Remove four (4) flange nuts that secure tank straps
to machine. Remove straps and felt strips.
7. Lift fuel tank from machine.
8. Make sure to clean up any spilled fuel. Also, check
that foam strips under fuel tank location are in good condition.
Fuel Tank Installation (Fig. 4)
1. Position foam strips, fuel tank and tank straps to machine frame. Place felt strip between tank and both tank
straps.
2. Secure straps and fuel tank to frame with four (4)
flange nuts.
3. Connect fuel hose to fuel tank outlet at bottom of
tank. Secure hose with clamp.
4. Connect fuel hose to the fuel filter inlet. Secure hose
with clamp.
5. Add fuel to tank and check for any fuel leaks.
6. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
Figure 5
1. Engine blower housing
2. Fuel filter
3. Fuel filter inlet
1
2
3
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PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 3 − 8Engine
Engine
Figure 6
1. Frame
2. Engine
3. Fuel tank
4. Flange nut (4 used)
5. Flange head screw (4 used)
6. Blower coupler assembly
FRONT
RIGHT
1
2
3
4
5
6
Page 25
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 3 − 9 Engine
Engine Removal (Fig. 6)
1. Park machine on a level surface with the engine not
running and the ignition key removed from the key
switch. Chock wheels to prevent machine from moving.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
CAUTION
The exhaust system may be hot. Avoid possible
burns, allow exhaust to cool before removing the
engine.
3. If engine is to be disassembled, it may be easier to
drain oil from engine before removing engine from machine.
4. Label and disconnect wire harness connectors from
engine.
A. Disconnect positive battery cable and fusible link
from the starter motor B+ stud.
B. Disconnect wire harness blue wire from starter
motor terminal.
C. Loosen and remove flange bolts that secure negative battery cable and wire harness ground connector to engine. Note that there is a lock washer on the
bolt that secures the negative battery cable.
D. Disconnect wire harness connectors from remaining engine wires.
5. Loosen hose clamp that secures fuel hose to fuel filter inlet (Fig. 7). Remove fuel hose from fuel filter. Plug
fuel hose to prevent leakage and contamination. Make
sure to clean up any spilled fuel. Position disconnected
fuel hose away from engine.
6. Remove top grill and side grill from machine (Fig. 8).
7. Disconnect blower drive shaft from engine crankshaft (see Drive Shaft Removal in the Service and Repairs section of Chapter 5 − Blower Assembly).
8. Remove four (4) flange head screws and flange nuts
that secure engine to machine.
IMPORTANT: Make sure to not damage the engine,
fuel hoses, electrical harness or other parts while
removing the engine.
CAUTION
To prevent personal injury, make sure that engine
is properly supported as it is removed from the
machine. Engine weighs approximately 94
pounds (43 kg).
9. Carefully remove the engine from machine.
10.Remove engine parts and attachments as necessary to repair the engine.
Figure 7
1. Fuel filter 2. Fuel filter inlet
1
2
Figure 8
1. Screw
2. Washer
3. Flange nut
4. Top grill
5. Side grill
1
2
3
4
5
1
2
3
1
1
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PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 3 − 10Engine
Engine Installation (Fig. 6)
1. Position machine on a level surface.
2. Make sure that all parts removed from the engine
during maintenance or rebuilding are properly installed
to the engine.
IMPORTANT: Take care to not damage the engine,
fuel hoses, electrical harness or other parts while
installing the engine.
3. Carefully position engine on machine frame.
4. Install four (4) flange head screws up through the
frame and engine mounting holes. Install flange nuts on
screws. Do not fully tighten nuts at this time.
5. Connect blower drive shaft to engine crankshaft (see
Drive Shaft Installation in the Service and Repairs section of Chapter 5 − Blower Assembly).
6. Position engine on frame to align the blower drive
shaft assembly between the blower and engine shafts.
7. Fully tighten the engine mounting fasteners. Torque
fasteners from 270 to 330 in−lb (31 to 37 N−m).
8. Install top grill and side grill (Fig. 8).
9. Connect wire harness connectors to engine.
A. Connect positive battery cable and fusible link to
the starter motor B+ stud.
B. Connect wire harness blue wire to starter motor
terminal.
C. Secure negative battery cable and wire harness
ground connector to engine with flange bolts. Note
that there is a lock washer on the bolt that secures
the negative battery cable.
D. Connect wire harness connectors to remaining
engine wires.
10.Remove plug installed in fuel hose during engine removal process. Connect fuel hose to the fuel filter inlet
and secure with hose clamp (Fig. 7).
11. Check and adjust engine oil level as needed.
12.Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
Page 27
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ProForce Debris Blower Page 4 − 1 Electrical System
Chapter 4
Electrical System
Table of Contents
GENERAL INFORMATION 2. . . . . . . . . . . . . . . . . . . . .
Operator’s Manual 2. . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Power 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL DIAGRAMS 2. . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 5. . . . . . . . . . . . . . . . . . . . . . . . .
Starting Problems 5. . . . . . . . . . . . . . . . . . . . . . . . . . .
General Run Problems 7. . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL SYSTEM QUICK CHECKS 8. . . . . . . .
Battery Test (Open Circuit Test) 8. . . . . . . . . . . . . . .
Charging System Test 8. . . . . . . . . . . . . . . . . . . . . . .
COMPONENT TESTING 9. . . . . . . . . . . . . . . . . . . . . . .
Ignition Switch 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hour Meter 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fusible Link 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diode Assembly 13. . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel, Magneto and Power Relays 14. . . . . . . . . . . .
Operator Remote Control 15. . . . . . . . . . . . . . . . . . .
Remote Control Module 16. . . . . . . . . . . . . . . . . . . . .
SERVICE AND REPAIRS 18. . . . . . . . . . . . . . . . . . . . .
Nozzle Motor 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Storage 20. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Care 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Service 21. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical
System
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ProForce Debris Blower
Page 4 − 2
Electrical System
General Information
This Chapter gives information about troubleshooting,
testing and repair of the electrical system used in the
ProForce Debris Blower.
Operator’s Manual
The Operator’s Manual provides information regarding
the operation, general maintenance and maintenance
intervals for your ProForce Debris Blower machine. Refer to the Operator’s Manual for additional information
when servicing the machine.
Electrical Power
Electrical power to ProForce Debris Blower components is controlled by the Remote Control Module. To
make sure that machine operation does not occur unexpectedly, disconnect the negative battery cable from the
battery before performing any machine service.
Reattach the disconnected negative battery cable as
the last step in any repair. Secure cable with flange nut.
Torque nut from from 10 to 15 ft−lb (14 to 20 N−m).
Electrical Diagrams
The electrical schematic and wire harness drawings for
the ProForce Debris Blower are located in Chapter 7 −
Electrical Diagrams.
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ProForce Debris Blower Page 4 − 3 Electrical System
Special Tools
Order special tools from your Toro Distributor. Some
tools may also be available from a local supplier.
Multimeter
The multimeter can test electrical components and circuits for current (amps), resistance (ohms) or voltage.
Obtain this tool locally.
NOTE: Toro recommends the use of a DIGITAL Volt−
Ohm−Amp multimeter when testing electrical circuits.
The high impedance (internal resistance) of a digital meter in the voltage mode will make sure that excess current is not allowed through the meter. This excess
current can cause damage to circuits not designed to
carry it.
Figure 1
Skin−Over Grease
Special non−conductive grease which forms a light pro-
tective skin to help waterproof electrical switches and
contacts.
Toro Part Number: 505−165
Figure 2
Battery Terminal Protector
Aerosol spray that should be used on battery terminals
to reduce corrosion problems. Apply terminal protector
after the battery cable has been secured to the battery
terminal.
Toro Part Number: 107−0392
Figure 3
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ProForce Debris Blower
Page 4 − 4
Electrical System
Battery Hydrometer
Use the Battery Hydrometer when measuring specific
gravity of battery electrolyte. Obtain this tool locally.
Figure 4
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ProForce Debris Blower Page 4 − 5 Electrical System
Troubleshooting
CAUTION
Remove all jewelry, especially rings and
watches, before doing any electrical troubleshooting or testing. Disconnect the battery
cables unless the test requires battery voltage.
For effective troubleshooting and repairs, there must be
a good understanding of the electrical circuits (see
Chapter 7 − Electrical Diagrams) and components used
on this machine.
Starting Problems
Problem Possible Causes
Starter solenoid clicks, but starter will not crank. Battery is discharged.
Battery cables are loose or corroded.
Wire harness ground cable is loose or corroded.
Wiring at starter is faulty.
Starter solenoid is faulty.
Starter is faulty.
Nothing happens when start attempt is made. Battery is discharged.
Wiring to the start circuit components is loose,
corroded or damaged (see Electrical Schematic in
Chapter 7 − Electrical Diagrams).
Battery cables are loose or corroded.
Wire harness ground cable is loose or corroded.
Main fuse (15 amp) is loose or faulty.
Fusible link is faulty.
Ignition switch is faulty.
Starter solenoid is faulty.
Operator remote control or remote control module is
faulty.
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ProForce Debris Blower
Page 4 − 6
Electrical System
Starting Problems (Continued)
Problem Possible Causes
Engine cranks, but does not start. Ignition switch is faulty.
Magneto relay or circuit wiring is faulty.
Fuel relay or circuit wiring is faulty.
Diode is faulty.
Operator remote control or remote control module is
faulty.
Engine or fuel system is malfunctioning (see Chapter 3
− Engine).
Engine and fuel may be too cold.
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ProForce Debris Blower Page 4 − 7 Electrical System
General Run Problems
Problem Possible Causes
Battery does not charge. Wiring to charging circuit components is loose,
corroded or damaged (see Electrical Schematic in
Chapter 7 − Electrical Diagrams).
Voltage regulator is not properly grounded to engine.
Voltage regulator is faulty.
Ignition switch is faulty.
Battery is faulty.
Alternator stator or engine flywheel is faulty.
Engine stops during operation. Operator remote control button was inadvertently
pressed.
Ignition switch is faulty.
Fuse or fusible link is faulty.
Fuel, magneto and/or power relay is/are faulty.
Wiring to the run circuit components is broken or
disconnected (see Electrical Schematic in Chapter 7 −
Electrical Diagrams).
Operator remote control or remote control module is
faulty.
Engine or fuel system is malfunctioning (see Chapter 3
− Engine).
Nozzle rotation motor does not operate. Wiring to the nozzle rotation motor is broken or
disconnected (see Electrical Schematic in Chapter 7 −
Electrical Diagrams).
Nozzle rotation motor is faulty.
Operator remote control or remote control module is
faulty.
Page 34
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ProForce Debris Blower
Page 4 − 8
Electrical System
Electrical System Quick Checks
Battery Test (Open Circuit Test)
Use a digital multimeter to measure the battery voltage.
Set the multimeter to the DC volts setting. The battery
should be at a temperature of 60
o
to 100o F (16o to 38
o
C). The ignition switch should be in the OFF position and
all accessories turned off. Connect the positive (+) multimeter lead to the positive battery post and the negative
(−) multimeter lead to the negative battery post. Record
the battery voltage.
NOTE: This test provides a relative condition of the battery. Load testing of the battery will provide additional
and more accurate information (see Battery Service in
the Service and Repairs section).
Voltage Measured
Battery Charge Level
12.68 volts Fully charged (100%)
12.45 volts 75% charged
12.24 volts 50% charged
12.06 volts 25% charged
11.89 volts 0% charged
Charging System Test
This is a simple test used to determine if a charging system is functioning. It will tell you if the charging system
has an output, but not its capacity.
Use a digital multimeter set to DC volts. Connect the
positive (+) multimeter lead to the positive battery post
and the negative (−) multimeter lead to the negative battery post. Keep the test leads connected to the battery
posts and record the battery voltage.
NOTE: Upon starting the engine, the battery voltage
will drop and then should increase once the engine is
running.
NOTE: Depending upon the condition of the battery
charge and battery temperature, the battery voltage will
increase at different rates as the battery charges.
Start the engine and run at high idle (3450 RPM). Allow
the battery to charge for at least 3 minutes. Record the
battery voltage.
After running the engine for at least 3 minutes, battery
voltage should be at least 0.50 volt higher than initial battery voltage.
An example of a charging system that is functioning:
At least 0.50 volt over initial battery voltage.
Initial Battery Voltage = 12.30 v
Battery Voltage after 3 Minute Charge = 12.85 v
Difference = +0.55 v
Page 35
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ProForce Debris Blower Page 4 − 9 Electrical System
Component Testing
For accurate resistance and/or continuity checks, electrically disconnect the component being tested from the
circuit (e.g. unplug the switch connector before doing a
continuity check on switch).
CAUTION
When testing electrical components for continuity with a multimeter (ohms setting), make sure
that power to the circuit has been disconnected.
Ignition Switch
The engine mounted ignition (key) switch used on the
ProForce Debris Blower has three positions (OFF, RUN
and START) (Fig. 5). The switch terminals are positioned as shown in Figure 6.
Testing
The circuitry of the ignition switch is shown in the chart
below. With the use of a multimeter (ohms setting), the
switch functions may be tested to determine whether
continuity exists between the various terminals for each
switch position.
Testing
1. Make sure that ignition switch is OFF.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Unplug wire harness connectors from switch.
4. The circuitry of the ignition switch is shown in the
chart in the right column. With the use of a multimeter
(ohms setting), the switch functions may be tested to determine whether continuity exists between the various
terminals for each switch position.
5. Connect the harness connectors to the switch after
testing.
6. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
Figure 5
45
45
RUN
START
OFF
o
o
G
L
B
S
M
A
Figure 6
POSITION
CIRCUIT
OFF G + M + A
RUN B + L + A
START B + L + S
Page 36
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ProForce Debris Blower
Page 4 − 10
Electrical System
Hour Meter
The hour meter used on the ProForce Debris Blower records the amount of time that the engine is running.
Testing
1. Make sure that ignition switch is OFF.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Locate wire harness connector at rear of hour meter.
Unplug harness connector from hour meter.
4. Connect the positive (+) terminal of a 12 VDC source
to the positive (+) terminal of the hour meter.
5. Connect the negative (−) terminal of the voltage
source to the other terminal of the hour meter.
6. The hour meter should move 1/10 of an hour in six
minutes.
7. Disconnect the voltage source from the hour meter.
8. Replace the hour meter if necessary.
9. Connect wire harness connector to hour meter.
10.Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
Figure 7
QUARTZ
Hobbs
HOURS
1
0000
1
10
+
BACK
FRONT
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ProForce Debris Blower Page 4 − 11 Electrical System
Fuse
The ProForce Debris Blower uses a 15 amp fuse for circuit protection. The fuse holder for this fuse is located
next to the engine (Fig. 8).
Testing
1. Make sure that ignition switch is OFF.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Remove fuse from the fuse holder for testing. Fuse
should have continuity between fuse terminals.
4. After testing, install fuse into fuse holder.
5. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
1. Wire harness
2. Fuse
3. Fuse cover
Figure 8
2
1
3
Page 38
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ProForce Debris Blower
Page 4 − 12
Electrical System
Fusible Link
The ProForce Debris Blower uses a fusible link for circuit
protection. This fusible link connects the main wire harness to the starter B+ terminal and positive battery cable
(Fig. 9). If the link should fail, current to the machine will
cease. Refer to electrical schematic and wire harness
drawings in Chapter 7 − Electrical Diagrams for additional fusible link information.
Testing
1. Make sure that ignition switch is OFF.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Locate and unplug fusible link connector from machine wire harness.
4. Use a multimeter to make sure that continuity exists
between the disconnected fusible link connector and the
link terminal at the starter motor (Fig. 10). If the fusible
link is open (no continuity), replace the fusible link harness.
5. After testing is complete, make sure that fusible link
connectors are securely attached to starter and machine wire harness.
6. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
1. Fusible link
2. Starter B+ terminal
Figure 9
1
2
Figure 10
P1 J1
BATTERY B+HARNESS
FUSIBLE LINK HARNESS
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ProForce Debris Blower Page 4 − 13 Electrical System
Diode Assembly
A diode assembly (Fig. 11) is used in the ProForce Debris Blower wire harness (see wire harness drawings in
Chapter 7 − Electrical Diagrams). The diode provides
the initial current flow to energize or “wake up” the remote control module.
Testing
1. Make sure that ignition switch is OFF.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Locate diode assembly and remove cable tie that secures diode to machine wire harness.
4. Unplug the diode from the wire harness for testing.
5. The diode (Fig. 12) can be tested using a digital
multimeter (diode test or ohms setting) and the table in
the right column.
6. After testing is complete, make sure that diode is fully
installed into machine wire harness connector and secured to harness with cable tie.
7. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
1. Machine wire harness 2. Diode assembly
Figure 11
2
1
Figure 12
1. Diode
2. Male terminal
3. Female terminal
1
2
3
Multimeter
Red Lead (+)
on Terminal
Multimeter
Black Lead (−)
on Terminal
Continuity
Female Male YES
Male Female NO
Page 40
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ProForce Debris Blower
Page 4 − 14
Electrical System
Fuel, Magneto and Power Relays
The ProForce Debris Blower electrical system includes
three (3) identical relays. The fuel, magneto and power
relays are secured to a frame bracket between the battery and the engine (Fig. 13). All three relays are energized by the Remote Control Module. Relays can be
identified by a tag on the wire harness.
The power relay is used to provide power to the machine
when energized by the Remote Control Module.
The fuel relay is used to energize the engine carburetor
fuel solenoid. When the ignition switch is in the RUN or
START position, the fuel relay is energized by the Remote Control Module.
The magneto relay is used to allow ignition operation
when the relay is energized by the Remote Control Module. When de−energized, the relay provides a grounding
path for the engine ignition armatures to prevent ignition
operation.
Testing
1. Make sure that ignition switch is OFF.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Locate relay and disconnect the machine wire harness connector from the relay. Remove relay from machine for easier testing.
NOTE: Prior to taking small resistance readings with a
digital multimeter, short the meter test leads together.
The meter will display a small resistance value (usually
0.5 ohms or less). This resistance is due to the internal
resistance of the meter and test leads. Subtract this value from the measured value of the component you are
testing.
4. Using a multimeter (ohms setting), measure coil resistance between terminals 85 and 86 (Fig. 14). Resistance should be between 70 and 90 ohms.
5. Connect multimeter (ohms setting) leads to relay terminals 30 and 87. Ground terminal 86 and apply +12
VDC to terminal 85. The relay should have continuity between terminals 30 and 87 as +12 VDC is applied to terminal 85. The relay should not have continuity between
terminals 30 and 87 as +12 VDC is removed from terminal 85.
6. Disconnect voltage from terminal 85 and multimeter
lead from terminal 87.
7. Connect multimeter (ohms setting) leads to relay terminals 30 and 87A. Apply +12 VDC to terminal 85. The
relay should have continuity between terminals 30 and
87A as +12 VDC is applied to terminal 85. The relay
should not have continuity between terminals 30 and
87A as +12 VDC is removed from terminal 85.
8. Disconnect voltage and multimeter leads from the
relay terminals.
9. Secure relay to machine and connect machine wire
harness connector to relay.
10.Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
1. Engine
2. Battery
3. Relay location
Figure 13
1
2
3
Figure 14
868587A 87
30
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ProForce Debris Blower Page 4 − 15 Electrical System
Remote Transmitter
The remote transmitter is a solid state electrical device
that sends radio frequency (RF) signal inputs to the machine control module for control of machine electrical
operation (Fig. 15). The remote transmitter has sufficient range to send an RF signal to the control module
from the tow vehicle operator position.
When a button on the remote transmitter is pressed, the
LED on the remote should flicker (Fig. 16). If the machine control module is energized (control module Time
Out and Power LED’s are both illuminated) and a remote
transmitter button is pressed, the corresponding control
module LED should illuminate and the control module
RF activity LED should flicker.
If the control module is energized (control module Time
Out and Power LED’s are both illuminated), remote button functions are as follows:
Pressing the Engine Start button initiates a starting sequence to start the engine. This sequence (see Operator’s Manual) is necessary to prevent accidental engine
starting. After pressing the Engine Start button, the RH
Nozzle and LH Nozzle Rotate buttons are inactive for
five (5) seconds.
Pressing the Speed Increase (rabbit) button when the
engine is running causes the engine speed to increase.
Pressing the Speed Decrease (turtle) button when the
engine is running causes the engine speed to decrease.
Pressing the RH Nozzle Rotate button causes the blower nozzle to rotate to the right.
Pressing the LH Nozzle Rotate button causes the blower nozzle to rotate to the left.
Pressing the engine Stop button causes the engine to
stop running.
NOTE: When the engine stop button on the remote
transmitter is pressed, there will be a one (1) second
delay before the engine stop LED on the control module
illuminates. Also, for approximately five (5) seconds after the stop button is pressed, the control module engine
stop LED will remain illuminated and no other remote
transmitter operations can be performed.
The remote transmitter is powered by three (3) AAA alkaline batteries. If the range of the remote transmitter
has diminished or the transmitter LED does not flicker
when a button is pressed, the batteries should be replaced. To replace the batteries:
1. Remove six (6) screws that secure the rear cover to
the remote transmitter.
2. Lift rear cover from remote transmitter.
3. Remove batteries from remote transmitter and replace with three (3) new AAA alkaline batteries.
4. Place rear cover on remote transmitter and secure
with six (6) screws.
1. Remote transmitter
2. Control module
Figure 15
2
1
1. Speed increase
2. Speed decrease
3. RH nozzle rotate
4. LH nozzle rotate
5. Engine stop
6. Engine start
7. Remote control LED
Figure 16
1
3
5
4
2
7
6
Page 42
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower
Page 4 − 16
Electrical System
Control Module
The control module is a solid state electrical device that
receives signal inputs from the remote transmitter and
uses those inputs to control machine electrical operation. The control module is attached to the frame next to
the battery (Fig. 17).
Inputs from the engine mounted ignition switch and the
remote transmitter are monitored by the control module.
Output to the magneto relay, fuel relay, power relay, engine starter motor solenoid, engine throttle control module and nozzle rotation motor are controlled based on
the inputs received by the control module.
To start blower operation, rotation of the ignition switch
to the start position is used to turn on or “wake up” the
control module. The control module Time Out and Power LED’s should both be illuminated during blower operation (Fig. 18).
When a remote transmitter button is pressed, the corresponding control module LED should illuminate and the
control module RF activity LED should flicker (Fig. 18).
NOTE: Because of the normal RF activity in the environment, the control module RF activity LED may flicker
or be illuminated at any time during machine operation.
Machine operation will only be controlled by the remote
transmitter that is recognized by the control module.
NOTE: When the engine stop button on the remote
transmitter is pressed, there will be a one (1) second
delay before the control module engine stop LED illuminates. Also, the control module engine stop LED will remain illuminated and no other remote transmitter
operations can be performed for approximately five (5)
seconds.
The control module includes a timer to allow machine
operation for 30 minutes after the last control input (e.g.
key switch turned off or remote transmitter button
pressed). If no inputs are provided to the control module
during this time period, the control module will shut off
all machine electrical power including turning off the engine, if running. When the engine is turned off with either
the key switch or the remote transmitter, the control
module Time Out and Power LED’s will both be illuminated for this 30 minute time period.
The control module does not connect to an external
computer or hand held device, can not be re−pro-
grammed and does not record any fault data. The machine wire harness does include a communication port
with loopback connector that should remain connected.
Because of the solid state circuitry built into the control
module, there is no reliable method to test it. The module
may be damaged if an attempt is made to test it with an
electrical test device, such as a digital multimeter.
IMPORTANT: Before performing any welding on the
machine, disconnect the negative battery cable
from the battery to prevent damage to the electrical
system.
1. Remote transmitter
2. Control module
Figure 17
2
1
1. Speed increase LED
2. Speed decrease LED
3. RH nozzle rotate LED
4. LH nozzle rotate LED
5. Engine stop LED
6. Engine start LED
7. Time out LED
8. Power LED
9. RF activity LED
Figure 18
Tested to Compl y
With FCC Standar ds
FORHOMEOROFFICEUSE
Canada
3575APFB1
Model: 44538
N1625
Mad e in U.S . A.
2
1
4
3
6
58
7
9
Page 43
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 4 − 17 Electrical System
This page is intentionally blank.
Page 44
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower
Page 4 − 18
Electrical System
Service and Repairs
NOTE: See the Kohler Engine Service Manual (in-
cluded at the end of Chapter 3 − Engine) for engine elec-
trical component repair information.
Nozzle Motor
1. Nozzle
2. Nozzle clamp
3. V belt
4. Housing assembly
5. Flat washer (10 used)
6. R−clamp
7. Nozzle motor
8. Motor bracket
9. Cap screw (3 used)
10. Drive pulley
11. Lock nut
12. Cap screw (2 used)
13. Belt guard
14. Flange head screw (2 used)
15. Flat washer
16. Cap screw
17. Flange nut (2 used)
18. Flange nut
19. Leaf spring
20. Bearing
21. Cap screw (2 used)
22. Flange nut (2 used)
23. Shoulder bolt
24. Lock nut
25. Nozzle pulley
26. Nozzle guide
Figure 19
FRONT
RIGHT
1
3
2
6
4
15
16
18
20
7
8
9
10
11
12
13
14
17
19
20
21
22
23
15
5
24
16
20
25
26
NOTE: If nozzle motor wear or damage occurs, motor
replacement is necessary. Individual components for
the nozzle motor are not available.
Page 45
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 4 − 19 Electrical System
Removal (Fig. 19)
1. Position machine on a firm, level surface. Make sure
engine is stopped and remove key from the ignition
switch. Chock wheels to prevent machine from moving.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Unplug wire harness connector from nozzle motor.
4. Loosen, but do not fully remove, flange nut that secures drive pulley to nozzle motor shaft. Loosen flange
nut at least two turns.
5. Remove two (2) cap screws (item 21) and flange nuts
(item 22) that secure leaf spring to motor bracket. Remove leaf spring with bearing and flat washers (item 5)
from bracket.
6. Loosen two (2) flange head screws (item 14) and
flange nuts that secure nozzle motor bracket to outer
housing. Rotate bracket and nozzle motor to loosen v−
belt.
7. Loosen cap screws and flange nuts that secure belt
guard (item 13), route v−belt from behind guard and
carefully remove belt from machine.
NOTE: The shaft of the nozzle motor is tapered.
8. Use appropriate puller to loosen drive pulley from
nozzle motor.
9. Remove flange nut and drive pulley from nozzle motor shaft.
10.Support nozzle motor to prevent it from falling. Remove three (3) cap screws that secure nozzle motor to
bracket. Remove nozzle motor from machine.
Installation (Fig. 19)
1. Position nozzle motor to bracket and secure with
three (3) cap screws.
2. Thoroughly clean tapered surfaces of motor shaft
and drive pulley.
3. Slide drive pulley onto motor shaft and secure with
flange nut.
4. Place v−belt in nozzle pulley, route behind belt guard
(item 13) and install belt on motor pulley.
5. With a 3/8 in. drive torque wrench, pivot the motor
bracket from 200 to 230 in−lb (23 to 25 N−m) to set v−
belt tension (Fig. 20). Do not over tension belt. Hold
bracket with the torque wrench and tighten two (2)
flange head screws and flange nuts to secure belt adjustment and nozzle motor bracket.
6. Center belt guard around v−belt. Tighten cap screws
and flange nuts to secure belt guard to machine.
7. Position leaf spring with bearing and flat washers
(item 5) to bracket. Make sure that five (5) washers are
placed between spring and bracket at each mounting
hole. The bearing on the leaf spring should be centered
on the outside of the v−belt. Secure leaf spring to motor
bracket with two (2) cap screws (item 21) and flange
nuts (item 22).
8. Connect wire harness to nozzle motor.
9. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
1. Drive pulley
2. Leaf spring
3. Flange head screw
4. Torque wrench access
Figure 20
1
2
3
3
4
Page 46
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower
Page 4 − 20
Electrical System
Battery Storage
If the machine will be stored for more than 30 days:
1. Remove the battery from the machine and charge it
fully (see Battery Service).
2. Either store battery on a shelf or on the machine.
3. Leave battery cables disconnected if the battery is
stored on the machine.
4. Store battery in a cool atmosphere to avoid quick deterioration of the battery charge.
5. To help prevent the battery from freezing, make sure
it is fully charged (see Battery Service).
Battery Care
1. Battery electrolyte level must be properly maintained. The top of the battery must be kept clean. lf the
machine is stored in a location where temperatures are
extremely high, the battery will discharge more rapidly
than if the machine is stored in a location where temperatures are cool.
Wear safety goggles and rubber gloves when
working with electrolyte. Charge battery in a
well ventilated place so gasses produced
while charging can dissipate. Since the gases
are explosive, keep open flames and electrical
sparks away from the battery; do not smoke.
Nausea may result if the gases are inhaled. Unplug charger from electrical outlet before connecting or disconnecting charger leads to or
from battery posts.
CAUTION
IMPORTANT: Do not remove battery fill caps while
cleaning.
2. Check battery condition weekly or after every 50
hours of operation. Keep terminals and entire battery
case clean because a dirty battery will discharge slowly.
A. Clean battery by washing entire case with a solution of baking soda and water. Rinse with clear water.
B. Coat battery posts and cable connectors with
Battery Terminal Protector (Toro Part No. 107−0392)
or petroleum jelly to prevent corrosion.
3. Battery cables must be tight on terminals to provide
good electrical contact. Tighten nuts that secure battery
cables from 10 to 15 ft−lb (14 to 20 N−m).
Connecting battery cables to the wrong battery post could result in personal injury and/or
damage to the electrical system.
CAUTION
4. If corrosion occurs at battery terminals, disconnect
cables. Always disconnect negative (−) cable first.
Clean clamps and terminals separately. Reconnect
cables to battery with positive (+) cable first. Coat battery posts and cable connectors with Battery Terminal
Protector (Toro Part No. 107−0392) or petroleum jelly to
prevent corrosion.
5. Periodically (at least every 50 operating hours)
check battery electrolyte level. Check electrolyte level
every 30 days if machine is in storage.
6. Maintain battery cell level with distilled water. Do not
fill battery cells above the fill line.
Page 47
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 4 − 21 Electrical System
Battery Service
The battery is the heart of the electrical system. With
regular and proper service, battery life can be extended.
Additionally, battery and electrical component failure
can be prevented.
CAUTION
When working with batteries, use extreme caution to avoid splashing or spilling electrolyte.
Electrolyte can destroy clothing and burn skin
and eyes. Always wear safety goggles and a face
shield when working with batteries.
Electrolyte Specific Gravity
Fully charged: 1.265 corrected to 80
o
F (26.7oC)
Discharged: less than 1.240
Battery Specifications
BCI Group Size 28
535 CCA at 0
o
F (−18o C)
Reserve Capacity of 110 minutes at 80
o
F (27oC)
Dimensions (including terminal posts)
Length 10.3 inches (26.2 cm)
Width 6.8 inches (17.3 cm)
Height 9.5 inches (24.1 cm)
Removal and Installation (Fig. 21)
1. Make sure that ignition switch is in the OFF position
and that none of the LED’s on Remote Control Module
are illuminated. Loosen strap and remove battery box
cover.
2. Loosen and remove negative cable from battery. After negative cable has been removed, loosen and remove positive cable.
3. Carefully remove battery from machine.
4. Install battery in reverse order making sure to connect and tighten positive cable to battery before connecting negative cable. Tighten nuts that secure battery
cables from 10 to 15 ft−lb (14 to 20 N−m).
NOTE: Before connecting the negative (ground) cable
to the battery, connect a digital multimeter (set to DC
Amps) between the negative battery post and the negative (ground) cable connector. The reading should be
less than 0.1 amp. If the reading is 0.1 amp or more, the
machine’s electrical system should be tested for short
circuits or faulty components and repaired.
5. Install battery box cover and secure with strap.
1. Strap
2. Battery box cover
3. Battery
4. Battery box
5. Positive cable
6. Negative cable
7. Flange nut
Figure 21
1
3
2
4
5
6
7
FRONT
RIGHT
Inspection, Maintenance and Testing
1. Perform the following inspections and maintenance:
A. Check battery case for cracks. Replace battery if
cracked or leaking.
B. Check battery terminals for corrosion. If corrosion
occurs at terminals, disconnect cables. Always disconnect negative (−) cable first. Clean cable clamps
and battery terminals separately. Reconnect cables
with positive (+) cable first. Coat battery posts and
cable connectors with Battery Terminal Protector
(Toro Part No. 107−0392) or petroleum jelly to prevent corrosion.
IMPORTANT: Before cleaning the battery, tape or
block vent holes to the filler caps and make sure the
caps are on tightly.
C. Check for signs of wetness or leakage on the top
of the battery which might indicate a loose or missing
filler cap, overcharging, loose terminal post or overfilling. Also, check battery case for dirt and oil. Clean
the battery with a solution of baking soda and water,
then rinse it with clean water.
D. Check that the cover seal is not broken away. Replace the battery if the seal is broken or leaking.
E. Check the electrolyte level in each cell. If the level
is below the tops of the plates in any cell, fill all cells
with distilled water between the minimum and max-
imum fill lines. Charge at 15 to 25 amps for 15 minutes to allow sufficient mixing of the electrolyte.
Page 48
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower
Page 4 − 22
Electrical System
2. Conduct a hydrometer test of the battery electrolyte.
IMPORTANT: Make sure the area around the cells is
clean before opening the battery caps.
A. Measure the specific gravity of each cell with a
hydrometer. Draw electrolyte in and out of the
hydrometer barrel prior to taking a reading to warm−
up the hydrometer. At the same time take the temperature of the cell.
B. Temperature correct each cell reading. For each
10
o
F (5.5oC) above 80oF (26.7oC) add 0.004 to the
specific gravity reading. For each 10
o
F (5.5oC) be-
low 80
o
F (26.7oC) subtract 0.004 from the specific
gravity reading.
Example: Cell Temperature 100oF
Cell Gravity 1.245
100
o
F minus 80oF equals 20oF
(37.7
o
C minus 26.7oC equals 11.0oC)
20
o
F multiply by 0.004/10oF equals 0.008
(11
o
C multiply by 0.004/5.5oC equals 0.008)
ADD (conversion above) 0.008
Correction to 80oF (26.7oC) 1.253
C. If the difference between the highest and lowest
cell specific gravity is 0.050 or greater or the lowest
cell specific gravity is less than 1.225, charge the battery. Charge at the recommended rate and time given in Charging or until specific gravity of all cells is
1.225 or greater with the difference in specific gravity
between the highest and lowest cell less than 0.050.
If these charging conditions can not be met, replace
the battery.
3. Perform a high−discharge test with an adjustable
load tester.
This is one of the most reliable means of testing a battery
as it simulates the cold−cranking test. A commercial battery load tester is required to perform this test.
CAUTION
Follow the battery load tester manufacturer’s
instructions when using a battery load tester.
A. Check the voltage across the battery terminals
prior to testing the battery. If the voltage is less than
12.4 VDC, recharge the battery.
B. If the battery has recently been charged, remove
the battery surface charge before performing the
load test. Disconnect the engine fuel stop solenoid to
prevent the engine from starting. Engage the starter
motor for 10 seconds to remove battery surface
charge. Reconnect the fuel stop solenoid.
C. Make sure battery terminals are free of corrosion.
D. Measure the temperature of the center battery
cell.
E. Connect a battery load tester to the battery terminals following the load tester manufacturer’s in-
structions. Connect a digital multimeter to the
battery terminals.
F. Apply a test load of 270 amps (one half the Cranking Performance rating of the battery) for 15 seconds.
G. Take a voltage reading after 15 seconds, then remove the load.
H. Using the table below, determine the minimum
voltage for the cell temperature reading:
Minimum
Voltage
Battery Electrolyte
Temperature
9.6 70oF (and up) 21.1oC (and up)
9.5 60oF 15.6oC
9.4 50oF 10.0oC
9.3 40oF 4.4oC
9.1 30oF −1.1oC
8.9 20oF −6.7oC
8.7 10oF −12.2oC
8.5 0oF −17.8oC
I. If the test voltage is below the minimum, replace
the battery. If the test voltage is at or above the minimum, return the battery to service.
Page 49
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 4 − 23 Electrical System
Charging
To minimize possible damage to the battery and allow
the battery to be fully charged, the slow charging method is presented here. This charging method can be accomplished with a constant current battery charger
which is commonly available.
CAUTION
Follow the battery charger manufacturer’s
instructions when using a battery charger.
NOTE: Using specific gravity of the battery cells is the
most accurate method of determining battery condition.
1. Determine the battery charge level from either its
specific gravity or open circuit voltage.
Battery Charge
Level
Specific
Gravity
Open Circuit
Voltage
100% 1.265 12.68
75% 1.225 12.45
50% 1.190 12.24
25% 1.155 12.06
0% 1.120 11.89
2. Determine the charging time and rate using the bat-
tery charger manufacturer’s instructions or the following table:
Battery
Reserve
Battery Charge Level
(Percent of Fully Charged)
Capacity
(Minutes)
75% 50% 25% 0%
80 or less 3.8 hrs
@
3 amps
7.5 hrs
@
3 amps
11.3 hrs
@
3 amps
15 hrs
@
3 amps
81 to 125 5.3 hrs
@
4 amps
10.5 hrs
@
4 amps
15.8 hrs
@
4 amps
21 hrs
@
4 amps
126 to
170
5.5 hrs
@
5 amps
11 hrs
@
5 amps
16.5 hrs
@
5 amps
22 hrs
@
5 amps
171 to
250
5.8 hrs
@
6 amps
11.5 hrs
@
6 amps
17.3 hrs
@
6 amps
23 hrs
@
6 amps
above
250
6 hrs
@
10 amps
12 hrs
@
10 amps
18 hrs
@
10 amps
24 hrs
@
10 amps
CAUTION
Do not charge a frozen battery because it can explode and cause injury. Let the battery warm to
60
o
F (15.5o C) before connecting to a charger.
Charge the battery in a well−ventilated place to
dissipate gases produced from charging. These
gases are explosive; keep open flame and electrical spark away from the battery. Do not smoke.
Nausea may result if the gases are inhaled. Unplug the charger from the electrical outlet before
connecting or disconnecting the charger leads
from the battery posts.
3. Following the battery charger manufacturer’s
instructions, connect the charger cables to the battery.
Make sure a good connection is made.
4. Charge the battery following the battery charger
manufacturer’s instructions.
5. Occasionally check the temperature of the battery
electrolyte. If the temperature exceeds 125
o
F (51.6oC)
or the electrolyte is violently gassing or spewing, the
charging rate must be lowered or temporarily stopped.
6. Three hours prior to the end of the charging, measure the specific gravity of a battery cell once per hour.
The battery is fully charged when the cells are gassing
freely at a low charging rate and there is less than a
0.003 change in specific gravity for three consecutive
readings.
Page 50
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ProForce Debris Blower
Page 4 − 24
Electrical System
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PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 5 − 1 Blower Assembly
Chapter 5
Blower Assembly
Table of Contents
GENERAL INFORMATION 3. . . . . . . . . . . . . . . . . . . . .
Operators Manual 3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Power 3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE AND REPAIRS 4. . . . . . . . . . . . . . . . . . . . . .
Blower Drive Shaft 4. . . . . . . . . . . . . . . . . . . . . . . . . .
Rotor Assembly 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotor Shaft 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inner Housing Assembly 10. . . . . . . . . . . . . . . . . . . .
Nozzle Assembly 14. . . . . . . . . . . . . . . . . . . . . . . . . .
Blower
Assembly
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PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 5 − 2Blower Assembly
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Page 53
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 5 − 3 Blower Assembly
General Information
Operator’s Manual
The Operator’s Manual provides information regarding
the operation, general maintenance and maintenance
intervals for your ProForce Debris Blower machine. Refer to the Operator’s Manual for additional information
when servicing the machine.
Electrical Power
Electrical power to ProForce Debris Blower components is controlled by the Remote Control Module. To
make sure that machine operation does not occur unexpectedly, disconnect the negative battery cable from the
battery before performing any machine service.
Reattach the disconnected negative battery cable as
the last step in any repair. Secure cable with flange nut.
Torque nut from from 10 to 15 ft−lb (14 to 20 N−m).
Page 54
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 5 − 4Blower Assembly
Service and Repairs
Blower Drive Shaft
1. Flange nut
2. Fan hub
3. Cap screw
4. Spacer
5. Spacer
6. Flat washer
7. Cap screw
8. Drive coupling
9. Flat washer
10. Cap screw
11. Woodruff key
12. Drive shaft
13. Engine hub and coupling assembly
Figure 1
FRONT
RIGHT
6
7
3
2
5
4
8
9
10
12
13
3
5
9
10
11
1
300 to 330 in−lb
(34 to 37 N−m)
300 to 330 in−lb
(34 to 37 N−m)
Loctite #242
1
4
1
9
1
11
NOTE: The coupling assembly between the blower
shaft and drive shaft (item 12) is illustrated in Figure 1.
The coupling assembly (item 13) used between the
drive shaft (item 12) and engine shaft is composed of the
same components (Fig. 2).
Page 55
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 5 − 5 Blower Assembly
Removal (Fig. 1)
1. Position machine on a firm, level surface. Make sure
engine is stopped and remove key from the ignition
switch. Chock wheels to prevent machine from moving.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Remove top grill to allow access to blower drive shaft
(Fig. 3).
4. Remove cap screws, flat washers and lock nuts that
secure drive shaft assembly to hubs on engine shaft and
blower shaft.
5. Lift drive shaft assembly from machine.
6. Disassemble drive couplings from drive shaft using
Figures 1 and 2 as guides. Note differences in coupling
spacer flange thickness for assembly purposes.
7. Inspect drive couplings for damage and replace if
necessary.
8. If necessary, remove hubs from engine shaft and
blower shaft:
A. Remove cap screw and flat washer that secure
hub to shaft.
NOTE: Hub has a tapered ID and will require a puller
to remove it from shaft.
B. Use appropriate puller to remove hub from shaft.
C. Remove woodruff key from shaft slot.
Installation (Fig. 1)
1. If hub was removed from engine shaft or blower
shaft, thoroughly clean tapers of shaft(s) and hub(s). Fit
woodruff key to shaft slot and place hub on shaft. Apply
Loctite #242 (or equivalent) to threads of cap screw
used to secure hub to shaft. Secure hub to shaft with cap
screw and flat washer.
2. Place coupling spacers into rubber coupling.
3. Secure rubber couplings to drive shaft with cap
screws and lock nuts using Figures 1 and 2 as guides.
4. Position drive shaft assembly to engine shaft and
blower shaft.
5. Secure drive shaft assembly to hubs on engine shaft
and blower shaft with cap screws, flat washers and lock
nuts.
6. Install top grill to machine (Fig. 3).
7. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
1. Cap screw
2. Flat washer
3. Cap screw
4. Spacer
5. Cap screw
6. Woodruff key
7. Shaft hub
8. Flat washer
9. Flange nut
10. Spacer
11. Rubber coupler
12. Fan hub/coupling
Figure 2
1
2
3
4
5
6
7
8
9
10
11
12
Figure 3
1. Screw
2. Washer
3. Flange nut
4. Top grill
5. Side grill
1
2
3
4
5
1
2
3
1
1
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PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 5 − 6Blower Assembly
Rotor Assembly
1. Inlet bell
2. Retaining ring
3. Wave washer
4. Front cap
5. Nut (LH threads)
6. Spacer
7. Rotor assembly
8. Woodruff key
9. Rotor shaft
10. Outer housing
11. Flange nut (8 used)
12. Washer
13. Cap screw (8 used)
Figure 4
FRONT
RIGHT
1
6
7
3
2
5
4
8
9
10
11
50 to 60 ft−lb
(68 to 81 N−m)
Loctite #242
12
13
Page 57
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 5 − 7 Blower Assembly
Removal (Fig. 4)
1. Position machine on a firm, level surface. Make sure
engine is stopped and remove key from the ignition
switch. Chock wheels to prevent machine from moving.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Remove top grill to allow access to blower assembly
(Fig. 5).
4. Remove blower drive shaft from machine (see Blower Drive Shaft Removal in this section).
5. Remove retaining ring (item 2), wave washer (item
3) and front cap (item 4) from shaft.
NOTE: When loosening nuts that secure rotor assembly to shaft, use a 1 1/4” wrench in flats on shaft to prevent the shaft from turning.
IMPORTANT: The two (2) nuts (item 5) used to secure the rotor assembly to the rotor shaft have left
hand threads. Loosen these nuts by rotating clockwise.
6. Loosen and remove outer nut from rotor shaft by rotating nut in a clockwise direction. Then, remove inner
nut by rotating nut clockwise.
7. Slide spacer (item 6), rotor assembly and washer
(item 12) from shaft. Locate and retrieve woodruff key.
NOTE: Component parts for the rotor assembly are not
available. If rotor damage exists, replace complete rotor
assembly.
Installation (Fig. 4)
1. Position woodruff key in slot in rotor shaft. Slide
washer (item 12), rotor assembly and then spacer (item
6) onto shaft.
2. Apply Loctite #242 (or equivalent) to threads on rotor
shaft.
NOTE: When installing nuts that secure rotor assembly
to shaft, use a 1 1/4” wrench in flats on shaft to prevent
the shaft from turning.
IMPORTANT: The two (2) nuts (item 5) used to secure the rotor assembly to the rotor shaft have left
hand threads.
3. Install inner nut and torque from 50 to 60 ft−lb (68 to
81 N−m) to secure rotor assembly on shaft. Then, while
holding inner nut to prevent it from turning, install and
torque outer nut from 50 to 60 ft−lb (68 to 81 N−m).
4. Install front cap (item 4), wave washer (item 3) and
retaining ring (item 2) onto shaft.
5. Install blower drive shaft (see Blower Drive Shaft
Installation in this section).
6. Install top grill to machine (Fig. 5).
7. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
Figure 5
1. Screw
2. Washer
3. Flange nut
4. Top grill
5. Side grill
1
2
3
4
5
1
2
3
1
1
Page 58
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 5 − 8Blower Assembly
Rotor Shaft
1. Cap screw (4 used)
2. Bearing holder
3. Fan shaft
4. Retaining ring (4 used)
5. Bearing (2 used)
6. Front bearing cap
7. Flange head screw (4 used)
8. Inner housing
9. Plug
Figure 6
FRONT
RIGHT
1
6
3
2
5
4
180 to 210 in−lb
(21 to 23 N−m)
8
9
7
4
5
Loctite
Product 641
NOTE: The rotor shaft and bearings can be serviced
without removing inner housing from machine.
Removal (Fig. 6)
1. Position machine on a firm, level surface. Make sure
engine is stopped and remove key from the ignition
switch. Chock wheels to prevent machine from moving.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Remove nozzle and nozzle pulley from rear of outer
housing (see Nozzle Assembly Removal in this section).
4. Remove top grill to allow access to blower assembly
(Fig. 7).
5. Remove blower drive shaft from machine (see Blower Drive Shaft Removal in this section).
6. Remove rotor assembly (see Rotor Assembly Removal in this section).
7. Remove plug (item 9) from inner housing.
NOTE: Bearings are secured with Loctite Product 641
medium strength bearing mount. Heating of the inner
housing and bearing holder in the bearing area may be
required during disassembly.
Page 59
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 5 − 9 Blower Assembly
8. Remove four (4) cap screws that secure bearing
holder to inner housing.
9. Slide rotor shaft and bearing holder assembly from
inner housing.
10.Remove four (4) flange head screws that secure
front bearing cap to bearing holder. Remove bearing
holder from rotor shaft assembly.
11. Remove bearings from rotor shaft:
A. Remove outer retaining rings from shaft.
B. Press bearings from shaft.
C. Remove front bearing cap and inner retaining
rings from shaft if necessary.
12.Inspect rotor shaft and bearing bores of bearing
holder and inner housing for wear or damage. Replace
parts as necessary.
Installation (Fig. 6)
1. Install bearings onto rotor shaft:
A. Install inner retaining rings into shaft groove if
they were removed.
B. Make sure that front bearing cap (item 6) is
placed on rotor shaft between bearing locations.
C. Install bearings onto shaft by pressing on inner
race. Make sure that bearings are seated against inner retaining ring.
D. Install outer retaining rings to secure bearings on
shaft.
2. Clean bearing bores of bearing holder and inner
housing with brake parts cleaner or similar non−oily
cleaner. After cleaner dries completely, apply Loctite
Primer N 7649 (or equivalent) to bearing bores. Allow
Primer to dry completely.
3. Thoroughly clean OD of bearings on rotor shaft. Apply Loctite Product 641 (or equivalent) to OD of both
bearings.
4. Slide bearing holder onto bearing on rotor shaft.
Position front bearing cap (item 6) to bearing holder and
secure with four (4) flange head screws.
5. Install rotor shaft assembly into inner housing making sure that bearing is fully seated in housing bearing
bore. Make sure that bearing holder slides fully into inner housing and that rotor shaft rotates freely.
6. Install four (4) cap screws to secure bearing holder
to inner housing. Tighten screws in three (3) equal steps
and in a crossing pattern. Final torque on screws should
be from 180 to 210 in−lb (21 to 23 N−m).
7. Install plug (item 9) into inner housing.
8. Install rotor assembly (see Rotor Assembly Installation in this section).
9. Install blower drive shaft (see Blower Drive Shaft
Installation in this section).
10.Install top grill to machine (Fig. 7).
11. Install nozzle pulley and nozzle to rear of outer housing (see Nozzle Assembly Installation) in this section).
12.Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
Figure 7
1. Screw
2. Washer
3. Flange nut
4. Top grill
5. Side grill
1
2
3
4
5
1
2
3
1
1
Page 60
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 5 − 10Blower Assembly
Inner Housing Assembly
1. Inlet bell
2. Retaining ring
3. Wave washer
4. Front cap
5. Nut (LH thread)
6. Spacer
7. Rotor assembly
8. Washer
9. Woodruff key
10. Stator vane (24 used)
11. Carriage screw (2 used)
12. Outer housing
13. Flange head screw (24 used)
14. Cap screw (8 used)
15. Flange head screw (8 used)
16. Nozzle pulley
17. Cap screw (2 used per guide)
18. Nozzle guide (4 used)
19. Flange nut (16 used)
20. Fan mount (2 used)
21. Carriage screw (2 used)
22. Flange nut (4 used)
23. Inner housing assembly
24. Spacer (2 used per guide)
Figure 8
1
14
3
2
4
5
6
7
12
9
10
11
8
13
15
16
18
19
17
20
21
FRONT
RIGHT
50 to 60 ft−lb
(68 to 81 N−m)
Loctite #242
10 to 20 in−lb
(1.2 to 2.2 N−m)
90 to 100 in−lb
(10.2 to 11.2 N−m)
22
23
24
NOTE: The rotor shaft and bearings can be serviced
without removing inner housing from machine (see Rotor Shaft in this section). For replacement of the inner
housing, stator vanes (item 10) or outer housing (item
12), the following procedure is necessary.
Page 61
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 5 − 11 Blower Assembly
Removal (Fig. 8)
1. Position machine on a firm, level surface. Make sure
engine is stopped and remove key from the ignition
switch. Chock wheels to prevent machine from moving.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Remove nozzle and nozzle pulley from rear of outer
housing (see Nozzle Assembly Removal in this section).
4. Remove top grill to allow access to blower assembly
(Fig. 9).
5. Remove blower drive shaft from machine (see Blower Drive Shaft Removal in this section).
6. Remove rotor assembly (see Rotor Assembly Removal in this section).
7. Remove cap screws and flange nuts that secure outer housing to fan mounts.
CAUTION
To prevent personal injury, make sure that outer
housing assembly is properly supported as it is
removed from the machine. Assembly weighs
approximately 70 pounds (31.8 kg).
8. Lift outer housing assembly from machine. Set assembly on workbench with fan shaft pointing straight up
(Fig. 10). Support inner housing so it does not shift during disassembly.
9. Loosen, but do not remove, eight (8) flange head
screws (item 14) that secure inner housing flanges to
outer housing.
10.Remove flange head screw (item 12) that secures
each stator vane (item 9) to outer housing. Tilt vane to
free vane lugs from inner housing and remove vane. Inspect each vane to make sure that mounting lugs and
screw threads are in good condition. Replace any vane
that shows signs of damage or wear.
11. Fully remove flange head screws (item 14) that secure inner housing flanges to outer housing. Remove inner housing assembly from the outer housing.
12.If necessary, disassemble inner housing (see Rotor
Shaft Removal in this section).
Figure 9
1. Screw
2. Washer
3. Flange nut
4. Top grill
5. Side grill
1
2
3
4
5
1
2
3
1
1
1. Outer housing
2. Inner housing assembly
3. Stator vane (24 used)
Figure 10
ROUNDED
DISCHARGE
END
INTAKE
END
END
2
3
1
Page 62
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 5 − 12Blower Assembly
Installation (Fig. 8)
1. If rotor shaft was removed from inner housing, assemble inner housing (see Rotor Shaft Installation in
this section).
2. Set outer housing on workbench with the intake end
up (Fig. 10).
NOTE: When assembling inner and outer housings, do
not fully tighten any screws until all screws are installed
in inner housing flanges and stator vanes. Also, use
hand tools rather than air impact tools during assembly.
3. Install inner housing to outer housing:
A. Lower inner housing assembly into outer housing
with the rotor shaft pointing upwards.
B. Align holes in inner housing flanges with outer
housing holes. Support inner housing so holes remain aligned.
C. Install and finger tighten eight (8) flange head
screws (item 14) into threads of inner housing
flanges. Do not fully tighten screws at this time.
4. Install stator vanes to inner and outer housing:
A. Position vane between inner and outer housing.
Make sure that rounded end of vane is orientated toward rotor shaft (Fig. 10).
B. Tilt vane and engage vane lugs to inner housing
holes.
C. While keeping vane lugs in inner housing holes,
rotate vane to align threaded hole of vane with outer
housing hole.
D. Install and finger tighten flange head screw (item
12) into threads of vane. Do not fully tighten screws
at this time.
5. Tighten fasteners in the following order to secure assembly:
A. Use nutdriver to hand tighten the eight (8) flange
head screws that secure inner housing flanges to
outer housing. Use a crossing pattern while tightening the screws.
B. Use nutdriver to hand tighten the twenty−four
(24) flange head screws that secure the stator vanes
to outer housing. Use a crossing pattern while tightening the screws.
C. Torque flange head screws that secure inner
housing flanges to outer housing from 90 to 100 in−
lb (10.2 to 11.2 N−m). Use a crossing pattern while
torquing the screws.
IMPORTANT: DO NOT overtighten screws that
secure stator vanes to outer housing. If screws
are overtightened, threads in vanes could be
damaged.
D. Torque screws that secure stator vanes to outer
housing from 10 to 20 in−lb (1.2 to 2.2 N−m). Use a
crossing pattern while torquing the screws.
CAUTION
To prevent personal injury, make sure that outer
housing assembly is properly supported as it is
positioned to machine. Assembly weighs
approximately 70 pounds (31.8 kg).
6. Position outer housing assembly to machine. Secure
outer housing to fan mounts with cap screws and flange
nuts.
7. Install rotor assembly (see Rotor Assembly Installation in this section).
8. Install blower drive shaft (see Blower Drive Shaft
Installation in this section).
9. Install top grill to machine (Fig. 9).
10.Install nozzle pulley and nozzle to rear of outer housing (see Nozzle Assembly Installation in this section).
11. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
Page 63
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 5 − 13 Blower Assembly
This page is intentionally blank.
Page 64
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 5 − 14Blower Assembly
Nozzle Assembly
1. Nozzle
2. Nozzle clamp
3. V belt
4. Housing assembly
5. Flat washer (10 used)
6. R−clamp
7. Nozzle motor
8. Motor bracket
9. Cap screw (3 used)
10. Drive pulley
11. Lock nut
12. Cap screw (2 used)
13. Belt guard
14. Flang head screw (2 used)
15. Flat washer (2 used per bearing)
16. Cap screw
17. Flange nut (2 used)
18. Flange nut
19. Leaf spring
20. Bearing
21. Cap screw (2 used)
22. Flange nut (2 used)
23. Shoulder bolt
24. Lock nut
25. Nozzle pulley
26. Nozzle guide (4 used)
27. Lock nut
28. Socket head screw
Figure 11
FRONT
RIGHT
1
3
2
6
4
15
16
18
20
7
8
9
10
11
12
13
14
17
19
20
21
22
23
15
5
24
16
20
25
26
28
27
45 to 50 in−lb
(5.1 to 5.6 N−m)
NOTE: For service information on the nozzle motor
(item 7), refer to the Service and Repairs section of
Chapter 4 − Electrical System.
Page 65
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 5 − 15 Blower Assembly
Removal (Fig. 11)
1. Position machine on a firm, level surface. Make sure
engine is stopped and remove key from the ignition
switch. Chock wheels to prevent machine from moving.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal. Position disconnected negative cable away from
the negative battery terminal.
3. Loosen socket head screw and lock nut that secures
ends of nozzle clamp. Remove clamp from nozzle and
nozzle pulley.
4. Remove nozzle from outer housing.
5. Remove two (2) cap screws (item 21) and flange nuts
(item 22) that secure leaf spring to motor bracket. Remove leaf spring with bearing and flat washers (item 5)
from bracket.
6. Loosen two (2) flange head screws (item 14) and
flange nuts that secure nozzle motor bracket to outer
housing. Rotate bracket and nozzle motor to loosen v−
belt.
7. Loosen cap screws and flange nuts that secure belt
guard (item 13), route v−belt from behind guard and
carefully remove belt from machine.
8. If necessary, remove nozzle guides, pulley bearings
and nozzle pulley from outer housing using Figures 11
and 13 as guides.
Installation (Fig. 11)
1. If removed, install nozzle pulley, pulley bearings and
nozzle guides using Figures 11 and 13 as guides.
2. Place v−belt in nozzle pulley, route behind belt guard
(item 13) and install belt on motor pulley.
3. With a 3/8 in. drive torque wrench, pivot the motor
bracket from 200 to 230 in−lb (23 to 25 N−m) to set v−
belt tension (Fig. 12). Do not over tension belt. Hold
bracket with the torque wrench and tighten two (2)
flange head screws and flange nuts to secure belt adjustment and nozzle motor bracket.
4. Center belt guard around v−belt. Tighten cap screws
and flange nuts to secure belt guard to machine.
5. Position leaf spring with bearing and flat washers
(item 5) to bracket. Make sure that five (5) washers are
placed between spring and bracket at each mounting
hole. The bearing on the leaf spring should be centered
on the outside of the v−belt. Secure leaf spring to motor
bracket with two (2) cap screws (item 21) and flange
nuts (item 22).
6. Fit nozzle and nozzle clamp to pulley. Tighten socket
head screw and lock nut to secure nozzle to pulley.
Torque fasteners from 45 to 50 in−lb (5.1 to 5.6 N−m).
7. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
1. Drive pulley
2. Leaf spring
3. Flange head screw
4. Torque wrench access
Figure 12
1
2
3
3
4
1. Outer housing
2. Nozzle pulley
3. Cap screw
4. Nozzle guide (4 used)
5. Flange nut
6. Spacer
Figure 13
1
3
2
5
4
6
6
Page 66
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 5 − 16Blower Assembly
This page is intentionally blank.
Page 67
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 6 − 1 Chassis
Chapter 6
Chassis
Table of Contents
SPECIFICATIONS 2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION 3. . . . . . . . . . . . . . . . . . . . .
Operator’s Manual 3. . . . . . . . . . . . . . . . . . . . . . . . . .
Securing ProForce Debris Blower to Tow Vehicle 3
Electrical Power 3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
SERVICE AND REPAIRS 4. . . . . . . . . . . . . . . . . . . . . .
Wheels 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel Hubs and Bearings 6. . . . . . . . . . . . . . . . . . . .
Chassis
Page 68
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 6 − 2Chassis
Specifications
Item Description
Tires
Size 20 x 10 − 8, 4 Ply, Tubeless
Pressure 14 PSI (0.97 Bar)
Wheel Lug Nut Torque 60 to 65 ft−lb (81 to 88 N−m)
Page 69
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 6 − 3 Chassis
General Information
Operator’s Manual
The Operator’s Manual provides information regarding
the operation, general maintenance and maintenance
intervals for your ProForce Debris Blower. Refer to the
Operator’s Manual for additional information when servicing the machine.
Securing ProForce Debris Blower to Tow Vehicle
While operating or servicing the ProForce blower, make
sure that hitch pin is properly positioned in tow vehicle
hitch and blower tongue. Hitch pin should be secured
with hairpin clip (Fig. 1).
1. Tow vehicle hitch
2. Hitch pin
3. Hairpin clip
Figure 1
3
2
1
Electrical Power
Electrical power to ProForce Debris Blower components is controlled by the Remote Control Module. To
make sure that machine operation does not occur unexpectedly, disconnect the negative battery cable from the
battery before performing any machine service.
Reattach the disconnected negative battery cable as
the last step in any repair. Secure cable with flange nut.
Torque nut from from 10 to 15 ft−lb (14 to 20 N−m).
Page 70
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 6 − 4Chassis
Service and Repairs
Wheels
1. Main frame
2. Engine
3. Wheel hub assembly
4. Wheel and tire assembly
5. Lug nut (4 used per wheel)
Figure 2
FRONT
RIGHT
1
2
3
4
5
60 to 65 ft−lb
(81 to 88 N−m)
Page 71
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 6 − 5 Chassis
Wheel Removal (Fig. 2)
1. Have ProForce Debris Blower attached to tow vehicle and park machines on a level surface. Engage vehicle parking brake, stop engine and remove key from
the ignition switch. Make sure that blower engine is off.
Chock wheels to prevent movement of either machine.
2. To prevent unexpected blower operation, disconnect
the negative battery cable from the battery terminal.
Position disconnected negative cable away from the
negative battery terminal.
3. Loosen but do not remove four (4) lug nuts that secure wheel to be removed.
4. Jack or hoist ProForce blower from ground and support raised machine with jack stands (see Operator’s
Manual and Jacking Instructions in Chapter 1 − Safety).
5. Remove lug nuts and pull wheel from machine wheel
hub.
Wheel Installation (Fig. 2)
1. Position wheel to wheel hub on raised machine.
2. Secure wheel to ProForce blower with four (4) lug
nuts.
Failure to maintain proper lug nut torque could
result in failure or loss of wheel and may result in
personal injury.
WARNING
3. Lower machine to ground. Alternately torque lug
nuts from 60 to 65 ft−lb (81 to 88 N−m).
4. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
Page 72
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 6 − 6Chassis
Wheel Hubs and Bearings
Figure 3
1. Axle (2 used)
2. Grease seal
3. Bearing cone (2 used per axle)
4. Bearing cup (2 used per axle)
5. Wheel hub
6. Lug screw (4 used per hub)
7. Tab washer
8. Nut retainer
9. Flange nut (3 used per axle)
10. Cotter pin
11. Jam nut
12. Dust cap
13. Carriage screw (3 used per axle)
See text for
tightening procedure
1
6
7
3
2
5
4
8
9
10
11
12
3
FRONT
RIGHT
13
Page 73
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Page 6 − 7 Chassis
Removal (Fig. 3)
1. Have ProCore Processor attached to tow vehicle
and park machines on a level surface. Engage vehicle
parking brake, stop engine and remove key from the
ignition switch. Make sure that Processor engine is off.
Chock wheels to prevent movement of either machine.
2. To prevent unexpected blower operation, disconnect
the negative battery cable from the battery terminal.
Position disconnected negative cable away from the
negative battery terminal.
3. Jack or hoist blower from ground and support with
jack stands (see Operator’s Manual and Jacking Instructions in Chapter 1 − Safety).
4. Remove wheel assembly (see Wheel Removal in
this section).
5. Carefully pry dust cap from wheel hub.
6. Straighten cotter pin and remove from axle spindle.
7. Remove nut retainer, jam nut and tab washer that secure wheel hub to spindle. Slide wheel hub with bearings
from spindle.
8. Disassemble wheel hub:
A. Remove grease seal from the wheel hub taking
care to not damage the hub bore. Discard seal.
B. Remove bearing cones from both sides of wheel
hub. Clean bearings in solvent. Clean inside of hub.
C. If necessary, remove bearing cups from hub.
D. Inspect wheel bearings. Check the bearing cones
and bearing cups for wear, pitting or other damage.
Replace worn or damaged parts.
9. Inspect axle for wear or damage. Replace axle if necessary.
Installation (Fig. 3)
1. Thoroughly clean all wheel hub components before
assembly.
2. Assemble wheel hub:
A. If bearing cups were removed from the wheel
hub, press inner and outer cups into the hub until
they seat against the hub shoulder.
B. Fill hub approximately 50% full of grease.
C. Pack both bearing cones with grease. Install
greased inner bearing cone into the cup on inboard
side of the wheel hub.
IMPORTANT: The grease seal must be pressed
in so it is flush with the end of the hub. The lip of
the seal must face the inner bearing.
D. Lubricate the inside of new grease seal and press
it into the wheel hub.
3. Install the wheel hub onto the axle spindle taking
care to not damage grease seal in hub.
4. Install greased outer bearing cone, tab washer and
jam nut onto spindle shaft.
5. While rotating the wheel hub by hand, torque the jam
nut from 75 to 180 in-lb (8.5 to 20.3 N−m) to seat bearings. Loosen nut until it is away from tab washer and hub
has end play. Finally, while rotating hub, tighten jam nut
from 15 to 20 in−lbs (1.7 to 2.3 N−m).
6. Install nut retainer and cotter pin to secure jam nut.
Install dust cap to hub.
Failure to maintain proper lug nut torque could
result in failure or loss of wheel and may result in
personal injury.
WARNING
7. Install wheel assembly (see Wheel Installation in this
section).
8. Carefully lower machine to ground. Make sure to
properly torque wheel lug nuts from 60 to 65 ft−lb (81
to 88 N−m).
9. Connect negative battery cable to negative battery
terminal. Tighten nut that secures battery cable from 10
to 15 ft−lb (14 to 20 N−m). Make sure that battery cover
is secured.
Page 74
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerPage 6 − 8Chassis
This page is intentionally blank.
Page 75
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris Blower Electrical DiagramsPage 7 − 1
Chapter 7
Electrical Diagrams
Table of Contents
ELECTRICAL SCHEMATIC
Electrical Schematic 3. . . . . . . . . . . . . . . . . . . . . . . . .
WIRE HARNESS DRAWINGS
Wire Harness Drawing 4. . . . . . . . . . . . . . . . . . . . . . .
Wire Harness Diagram 5. . . . . . . . . . . . . . . . . . . . . . .
Electrical
Diagrams
Page 76
PRELIMINARY – For Toro Distributor and Toro Company use only.
ProForce Debris BlowerElectrical Diagrams Page 7 − 2
This page is intentionally blank.
Page 77
PRELIMINARY – For Toro Distributor and Toro Company use only.
Page 7 − 3
Electrical Schematic
ProForce Debris Blower
All ground wires are black.
GRAY
YELLOW
GREEN
BLUE
FUSIBLE LINK
RED/YELLOW
WHITE
PINK
GREEN
PINK
BLACK
WHITE
RED/WHITE
RED
WHITE
GREEN
RED/YELLOW
RED
GREEN
WHITE
GRAY
BLACK
GREEN
GREEN/BLACK
BLACK
ORANGE/BLACK
BLACK
BLUE
GREEN
PINK
BLACK
GRAY
YELLOW/BLACK
GRAY
RED/WHITE
ENGINE
GOVERNOR CONTROL
OIL PRESSURE SWITCH (GREEN)
MAGNETO (WHITE)
B+
START
FUEL SOLENOID OUT (RED)
FUEL SOLENOID (RED/WHITE)
Page 78
PRELIMINARY – For Toro Distributor and Toro Company use only.
Page 7 − 4
ProForce Debris Blower
Wire Harness Drawing
Page 79
PRELIMINARY – For Toro Distributor and Toro Company use only.
Page 7 − 5
ProForce Debris Blower
Wire Harness Diagram
BLUE
RED
GREEN
GREEN
WHITE
RED
GREEN
GREEN
PINK
BLACK
GRAY
GRAY
RED/WHITE
GREEN
BLACK
GRAY
BLACK
YELLOW
PINK
GRAY
BLUE
PINK
BLACK
GRAY
YELLOW/BLACK
WHITE
BLACK
ORANGE/BLACK
GREEN/BLACK
RED/YELLOW
BLUE
PINK
GREEN
Page 80
PRELIMINARY – For Toro Distributor and Toro Company use only.
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