ProForceR Debris Blower
Part No. 08158SL (Rev. C)
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. Additional copies of the Operator’s Manual are available on the Internet at
www.Toro.com.
The Toro Company reserves the right to change product
specifications or this publication without notice.
This safety symbol means DANGER, WARNING,
or CAUTION, PERSONAL SAFETY 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.
E The Toro Company - 2008, 2009, 2011, 2014
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ProForce Debris Blower
Table Of Contents
Chapter 2 - Product Records and Maintenance
Product Records . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equivalents and Conversions . . . . . . . . . . . . . . . .
Torque Specifications . . . . . . . . . . . . . . . . . . . . . . .
2222-
1
1
2
3
Chapter 3 - Engine
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 2
General Information . . . . . . . . . . . . . . . . . . . . . . . . 3 - 3
Service and Repairs . . . . . . . . . . . . . . . . . . . . . . . . 3 - 5
KOHLER COMMAND ENGINE SERVICE MANUAL
General Information . . . . . . . . . . . . . . . . . . . . . . . . 5 - 2
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 3
Service and Repairs . . . . . . . . . . . . . . . . . . . . . . . . 5 - 4
Chapter 6 - Chassis
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 2
General Information . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3
Service and Repairs . . . . . . . . . . . . . . . . . . . . . . . . 6 - 4
Chapter 7 - Electrical Diagrams
Electrical Schematics . . . . . . . . . . . . . . . . . . . . . . . 7 - 3
Engine Electrical Diagrams . . . . . . . . . . . . . . . . . . 7 - 6
Circuit Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - 8
Wire Harness Drawings . . . . . . . . . . . . . . . . . . . . 7 - 14
Product Records
and Maintenance
2
5
5
6
Engine
Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Securing ProForce Debris Blower to Tow Vehicle 1 Jacking Instructions . . . . . . . . . . . . . . . . . . . . . . . . . 1 Safety and Instruction Decals . . . . . . . . . . . . . . . . 1 -
Safety
Chapter 5 - Blower Assembly
Chapter 1 - Safety
Electrical
Diagrams
Chassis
Blower
Assembly
General Information . . . . . . . . . . . . . . . . . . . . . . . . 4 - 2
Electrical Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 2
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 3
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 5
Electrical System Quick Checks . . . . . . . . . . . . . . 4 - 8
Component Testing . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 9
Service and Repairs . . . . . . . . . . . . . . . . . . . . . . . 4 - 20
Electrical
System
Chapter 4 - Electrical System
ProForce Debris Blower
Rev. C
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ProForce Debris Blower
Chapter 1
Safety
Safety
Table of Contents
SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . .
Before Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . .
While Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance and Service . . . . . . . . . . . . . . . . . . . .
SECURING PROFORCE DEBRIS BLOWER TO
TOW VEHICLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
JACKING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . .
SAFETY AND INSTRUCTION DECALS . . . . . . . . . .
ProForce Debris Blower
2
2
3
4
5
5
6
Page 1 -- 1
Safety
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.
WARNING
To reduce the potential for injury or death, comply with the following safety instructions.
Before Operating
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. Additional copies of the
Operator’s Manual are available on the internet at
www.Toro.com.
3. Make sure that the tow vehicle is carefully selected
to assure the best performance and safe operation of
the ProForce Debris Blower.
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.
5. Tighten any loose nuts, bolts, screws or other fasteners to ensure machine is in safe operating condition.
Safety
4. Make sure that operator is familiar with safe tow vehicle operation.
6. Make sure that the ProForce Debris Blower is properly attached to tow vehicle.
Page 1 -- 2
Rev. A
ProForce Debris Blower
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.
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.
4. Be aware of the blower nozzle direction and do not
point it at anyone. Keep away from the nozzle opening
during machine operation.
B. Ensure that tow vehicle transmission or traction
lever is in neutral, set parking brake, stop engine and
remove key from ignition switch.
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.
C. Wait for all moving parts to stop before leaving
the tow vehicle.
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.
ProForce Debris Blower
Page 1 -- 3
D. If blower use is complete, turn ProForce Debris
Blower ignition switch OFF and remove key from
switch.
Safety
Safety
While Operating
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.
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.
9. Shut Debris Blower engine off before checking or
adding oil to the crankcase.
Safety
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 and the wire harness connector from the wireless control module to prevent electrical system damage.
15.If major repairs are ever needed or assistance is desired, contact an Authorized Toro Distributor.
16.Engine oil, engine and remote batteries are pollutants to the environment. Dispose of these according to
your state and local regulations.
17.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.
Page 1 -- 4 Rev. C
ProForce Debris Blower
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.
2
Safety
1
3
Figure 1
1. Tow vehicle hitch
2. Hitch pin
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
1
Figure 2
1. Wheel
2. Frame jacking point
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.
ProForce Debris Blower
Page 1 -- 5
Safety
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.
Safety
Page 1 -- 6
ProForce Debris Blower
Chapter 2
Product Records and Maintenance
Table of Contents
1
1
2
2
2
3
3
Product Records
and Maintenance
PRODUCT RECORDS . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EQUIVALENTS AND CONVERSIONS . . . . . . . . . . .
Decimal and Millimeter Equivalents . . . . . . . . . . . .
U.S. to Metric Conversions . . . . . . . . . . . . . . . . . . .
TORQUE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . .
Fastener Identification . . . . . . . . . . . . . . . . . . . . . . .
Standard Torque for Dry, Zinc Plated and
Steel Fasteners (Inch Series) . . . . . . . . . . . . . . .
Standard Torque for Dry, Zinc Plated and
Steel Fasteners (Metric Fasteners) . . . . . . . . . . .
Other Torque Specifications . . . . . . . . . . . . . . . . . .
Conversion Factors . . . . . . . . . . . . . . . . . . . . . . . . . .
4
5
6
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.
ProForce Debris Blower
Page 2 -- 1
Product Records and Maintenance
Equivalents and Conversions
0.09375
Product Records and Maintenance
Page 2 -- 2
ProForce Debris Blower
Torque Specifications
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
Grade 1
Grade 5
Grade 8
Class 8.8
Inch Series Bolts and Screws
Metric Bolts and Screws
Figure 1
ProForce Debris Blower
Class 10.9
Figure 2
Page 2 -- 3
Product Records and Maintenance
Product Records
and Maintenance
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.
Standard Torque for Dry, Zinc Plated and Steel Fasteners (Inch Series)
Thread Size
# 6 -- 32 UNC
Grade 1, 5 &
8 with Thin
Height Nuts
SAE Grade 1 Bolts, Screws, Studs &
Sems with Regular Height Nuts
(SAE J995 Grade 2 or Stronger Nuts)
in--lb
in--lb
N--cm
10 + 2
13 + 2
147 + 23
# 6 -- 40 UNF
# 8 -- 32 UNC
13 + 2
25 + 5
282 + 30
# 8 -- 36 UNF
# 10 -- 24 UNC
18 + 2
30 + 5
339 + 56
# 10 -- 32 UNF
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
N--cm
in--lb
N--cm
15 + 2
170 + 20
23 + 2
260 + 20
17 + 2
190 + 20
25 + 2
280 + 20
29 + 3
330 + 30
41 + 4
460 + 45
31 + 3
350 + 30
43 + 4
485 + 45
42 + 4
475 + 45
60 + 6
675 + 70
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.
Product Records and Maintenance
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 2 -- 4
ProForce Debris Blower
Standard Torque for Dry, Zinc Plated and Steel Fasteners (Metric Fasteners)
Class 8.8 Bolts, Screws and Studs with
Regular Height Nuts
(Class 8 or Stronger Nuts)
Class 10.9 Bolts, Screws and Studs with
Regular Height Nuts
(Class 10 or Stronger Nuts)
M5 X 0.8
57 + 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: 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.
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.
ProForce Debris Blower
Page 2 -- 5
Product Records and Maintenance
Product Records
and Maintenance
Thread Size
Other Torque Specifications
SAE Grade 8 Steel Set Screws
Wheel Bolts and Lug Nuts
Thread Size
Recommended Torque
Thread Size
Square Head
Hex Socket
1/4 -- 20 UNC
140 + 20 in--lb
73 + 12 in--lb
5/16 -- 18 UNC
215 + 35 in--lb
145 + 20 in--lb
3/8 -- 16 UNC
35 + 10 ft--lb
18 + 3 ft--lb
1/2 -- 13 UNC
75 + 15 ft--lb
50 + 10 ft--lb
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)
Type 1, Type 23 or Type F
Thread Size
Baseline Torque*
No. 6 -- 32 UNC
20 + 5 in--lb
No. 8 -- 32 UNC
Thread Cutting Screws
(Zinc Plated Steel)
Thread
Size
Threads per Inch
Baseline Torque*
Type A
Type B
No. 6
18
20
20 + 5 in--lb
30 + 5 in--lb
No. 8
15
18
30 + 5 in--lb
No. 10 -- 24 UNC
38 + 7 in--lb
No. 10
12
16
38 + 7 in--lb
1/4 -- 20 UNC
85 + 15 in--lb
No. 12
11
14
85 + 15 in--lb
5/16 -- 18 UNC
110 + 20 in--lb
3/8 -- 16 UNC
200 + 100 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
ft--lb X 1.3558 = N--m
Product Records and Maintenance
N--cm X 0.08851 = in--lb
N--m X 0.7376 = ft--lb
Page 2 -- 6
ProForce Debris Blower
Chapter 3
Engine
Table of Contents
ProForce Debris Blower
Page 3 - 1 Rev. C
Engine
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . 3
Operator’s Manual . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Electrical Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SERVICE AND REPAIRS . . . . . . . . . . . . . . . . . . . . . . 5
Engine Cooling System . . . . . . . . . . . . . . . . . . . . . . 5
Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Engine Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Engine Installation . . . . . . . . . . . . . . . . . . . . . . . . 10
Fuel Evaporative Control System (Serial Number
Above 310000000) . . . . . . . . . . . . . . . . . . . . . . . 12
KOHLER COMMAND ENGINE SERVICE MANUAL
Engine
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
Ignition System
See Operator’s Manual
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
Engine
94 lbs (43 kg)
Page 3 -- 2
ProForce Debris Blower
General Information
This Chapter gives information about specifications,
maintenance, troubleshooting, testing and repair of the
gasoline engine used in the ProForce Debris Blower.
ment is explained. However, the cost of the test equipment and the specialized nature of some repairs may
dictate that the work be done at an engine repair facility.
Most repairs and adjustments require tools which are
commonly available in many service shops. Special
tools are described in the KOHLER COMMAND ENGINE SERVICE MANUAL that is included at the end of
this Chapter. The use of some specialized test equip-
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
Engine
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 (see
Battery Service in the Service and Repairs section of
Chapter 4 - Electrical System).
Reattach the disconnected negative battery cable as
the last step in any repair. Secure cable with flange nut.
Torque nut from 10 to 15 ft- lb (14 to 20 N- m).
ProForce Debris Blower
Page 3 - 3 Rev. C
Engine
This page is intentionally blank.
Engine
Page 3 -- 4
ProForce Debris Blower
Service and Repairs
Engine 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.
1
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
1. Park machine on a level surface. Make sure engine
is OFF. Chock wheels to prevent machine from moving.
2
3
Engine
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal
(see Battery Service in the Service and Repairs section
of Chapter 4 -- Electrical System). Position disconnected negative cable away from the negative battery
terminal.
Figure 1
1. Cylinder head
2. Grass screen
3. Blower housing
CAUTION
The engine may be hot. Allow engine to cool before cleaning the engine cooling fins.
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. 1).
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.
ProForce Debris Blower
Page 3 -- 5
Engine
Fuel Tank
6
RIGHT
FRONT
7
5
4
SERIAL NUMBER BELOW 310000000 SHOWN
8
3
9
2
1
Figure 2
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
Check Fuel Lines and Connections
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.
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.
Engine
Page 3 -- 6 Rev. B
ProForce Debris Blower
Fuel Tank Removal (Figs. 2 and 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
(see Battery Service in the Service and Repairs section
of Chapter 4 -- Electrical System). Position disconnected negative cable away from the negative battery
terminal.
2
3
3. Remove fuel from the fuel tank and into a suitable
container.
5. Remove fuel tank from machine using Figure 2 or 4
as a guide. Make sure to clean up any spilled fuel.
6. On machine with serial number above 310000000,
remove components from fuel tank as needed using
Figure 5 as a guide.
Figure 3
1. Engine blower housing
2. Fuel filter
3. Fuel filter inlet
3
SERIAL NUMBER ABOVE
310000000 SHOWN
Engine
4. Note routing of fuel hoses for installation purposes.
Disconnect fuel hoses from fuel tank fittings. Plug fuel
hoses to prevent leakage or contaminant entry.
1
2
1
Fuel Tank Installation (Figs. 2 and 4)
1. On machine with serial number above 310000000,
install all removed components to fuel tank using Figure
5 as a guide.
2. Install fuel tank to machine using Figure 2 or 4 as a
guide.
3. Remove plugs placed in fuel hoses during fuel tank
removal. Connect fuel hoses to tank fittings and secure
with hose clamps.
4. Add fuel to tank and check for any fuel leaks.
Figure 4
1. Fuel tank assembly
2. Flange nut (4 used)
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.
SERIAL
NUMBER
ABOVE
310000000
6
3. Tank strap (2 used)
5
4
7
3
8
2
1
Figure 5
1.
2.
3.
4.
ProForce Debris Blower
Fuel tank
Fuel tank cap
Grommet
Fuel gauge
Page 3 -- 7 Rev. B
5.
6.
7.
8.
Rollover valve
Standpipe
Grommet
Bushing
Engine
Engine
RIGHT
6
FRONT
2
270 to 330 in--lb
(31 to 37 N--m)
3
4
1
5
Figure 6
1. Frame
2. Engine
Engine
3. Fuel tank
4. Flange nut (4 used)
Page 3 -- 8
5. Flange head screw (4 used)
6. Blower coupler assembly
ProForce Debris Blower
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
(see Battery Service in the Service and Repairs section
of Chapter 4 -- Electrical System). Position disconnected negative cable away from the negative battery
terminal.
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.
CAUTION
The exhaust system may be hot. Avoid possible
burns: allow exhaust to cool before removing the
engine.
10.Remove engine parts and attachments as necessary to repair the engine.
4. Label and disconnect wire harness connectors from
engine.
Engine
3. If engine is to be disassembled, it may be easier to
drain oil from engine before removing engine from machine.
1
2
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.
Figure 7
1. Fuel filter
4
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 (see
Guards Removal in the Service and Repairs section of
Chapter 6 -- Chassis).
2. Fuel filter inlet
1
1
3
2
2
1
1
5
3
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.
Figure 8
1. Screw
2. Washer
3. Flange nut
ProForce Debris Blower
Page 3 -- 9 Rev. B
4. Top grill
5. Side grill
Engine
9. Connect wire harness connectors to engine.
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. Move engine on frame as necessary 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).
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.
8. Install top grill and side grill (see Guards Installation
in the Service and Repairs section of Chapter 6 -- Chassis).
Engine
Page 3 -- 10 Rev. B
ProForce Debris Blower
Engine
This page is intentionally blank.
ProForce Debris Blower
Page 3 -- 11 Rev. C
Engine
Fuel Evaporative Control System (Serial Number Above 310000000)
CHECK
VALVE
FUEL
TANK
TO ENGINE
FITTING
CARBON
CANISTER
FRESH AIR
FILTER
ENGINE
Figure 11
ProForce blowers with serial number above 310000000
are equipped with a fuel evaporative control system
(EVAP) designed to collect and store evaporative emissions from the fuel tank. The EVAP uses a carbon canister to collect these evaporative emissions. Fuel vapors
from the fuel tank are vented to the canister where they
are stored. Vapors from the canister are consumed
when the engine is running which purges the canister.
The fuel tank on these ProForce machines uses a non-vented fuel cap. To connect the tank to the evaporative
control system, a fuel vent valve is positioned in the top
of the tank that allows tank venting through the carbon
canister.
Engine
NOTE: If there is restriction in the fresh air filter, the carbon canister or the fuel vent valve, the fuel tank may distort due to venting issues. If the fuel tank returns to it’s
normal shape when the fuel cap is removed, restriction
in the evaporative control system is likely.
Machines with a carbon canister include a single engine
connection to the engine intake system that is used to
connect the evaporative system to the engine. These
machines use an inline check valve and fuel filter
between the carbon canister and the engine fitting.
Evaporative control system components for ProForce
blowers are shown in Figure 11.
Page 3 -- 12 Rev. C
ProForce Debris Blower
Disassembly
DANGER
Gasoline is flammable. Use caution when storing
or handling it. Wipe up any spilled fuel before
starting the engine.
2
1
4
1. Inspect carbon canister and attached hoses for damage or obvious leaks. A damaged or leaking canister
should be replaced.
3
2. Remove components as needed using Figures 12
and 13 as guides.
5
A. If check valve (item 7 in Fig. 13) is removed, note
direction of arrow on valve body for assembly purposes.
Assembly
Figure 12
1. Carbon canister
2. Fuel hose
3. Fuel hose
Engine
B. If filter (item 5 in Fig. 13) is removed, note direction of arrow on filter body for assembly purposes.
4. Fresh air filter
5. Fuel hose
1. Install all removed components using Figures 12 and
13 as guides.
A. If check valve (item 7 in Fig. 13) was removed,
make sure that arrow on valve body points toward
engine.
9
B. If filter (item 5 in Fig. 13) was removed, make sure
that arrow on filter body points toward engine.
C. Make sure that evaporative system fuel hoses
are not kinked after installation. Also, secure all
hoses with hose clamps.
1
4
7
4
6
2
8
3
5
3
2 1
Figure 13
1.
2.
3.
4.
5.
ProForce Debris Blower
Page 3 -- 13
Hose clamp
Barb fitting
Hose clamp
Fuel hose
Filter
Rev. C
6.
7.
8.
9.
Fuel hose
Check valve
Fuel hose
Fuel hose
Engine
This page is intentionally blank.
Engine
Page 3 -- 14
Rev. C
ProForce Debris Blower
Chapter 4
Electrical System
Table of Contents
ProForce Debris Blower
Page 4 -- 1 Rev. C
Electrical
System
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 (Serial Number Below 310000000) 12
Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Remote Transmitter (Machines with Single
Channel Controller) . . . . . . . . . . . . . . . . . . . . . . . 14
Remote Transmitter (Machines with Multi
Channel Controller) . . . . . . . . . . . . . . . . . . . . . . . 15
Wireless Control Module (Machines with Single
Channel Controller) . . . . . . . . . . . . . . . . . . . . . . . 16
Wireless Control Module (Machines with Multi
Channel Controller) . . . . . . . . . . . . . . . . . . . . . . . 17
Diode Assembly (Serial Number Below
310000000) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
SERVICE AND REPAIRS . . . . . . . . . . . . . . . . . . . . . 20
Nozzle Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Battery Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
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 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.
Electrical System
Page 4 -- 2
ProForce Debris Blower
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
Electrical
System
Skin--Over Grease
Special non--conductive grease which forms a light protective skin to help waterproof electrical switches and
contacts.
Toro Part Number: TOR50547
Figure 2
Battery Terminal Protector
Aerosol spray that should be used on battery terminals
to reduce corrosion problems. Apply battery terminal
protector after the battery cable has been secured to the
battery terminal.
Toro Part Number: 107--0392
Figure 3
ProForce Debris Blower
Page 4 -- 3 Rev. B
Electrical System
Battery Hydrometer
Use the battery hydrometer when measuring specific
gravity of battery electrolyte. Obtain this tool locally.
Figure 4
Electrical System
Page 4 -- 4
ProForce Debris Blower
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.
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.
ProForce Debris Blower
Page 4 -- 5
Electrical System
Electrical
System
Starter is faulty.
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.
Electrical System
Page 4 -- 6
ProForce Debris Blower
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.
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.
ProForce Debris Blower
Page 4 -- 7
Electrical System
Electrical
System
Fuel, magneto and/or power relay is/are faulty.
Electrical System Quick Checks
Battery Test (Open Circuit Test)
Use a digital multimeter to measure the battery voltage.
Voltage Measured
Battery Charge Level
Set the multimeter to the DC volts setting. The battery
should be at a temperature of 60o to 100o F (16o to 38o
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.
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
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).
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.
Start the engine and run at high idle (3450 RPM). Allow
the battery to charge for at least 3 minutes. Record the
battery voltage.
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.
After running the engine for at least 3 minutes, battery
voltage should be at least 0.50 volt higher than initial 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.
Electrical System
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 4 -- 8
ProForce Debris Blower
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 ignition (key) switch used on the ProForce Debris
Blower has three positions (OFF, RUN and START) .
OFF
45 o
On ProForce blowers with serial numbers below
310000000, the ignition switch is mounted to the engine
blower housing. This switch is shown in Figure 5 and
switch circuits are shown in Figure 6.
RUN
START
ProForce blowers with serial numbers above
310000000 have the ignition switch mounted to the
frame panel above the battery. This switch is shown in
Figure 7 and switch circuits are shown in Figure 8.
B
M
A
OFF
G+M+A
RUN
B+A+R
START
B+S
Electrical
System
CIRCUITS
Figure 6
RUN
OFF
45o
45o
4. Unplug wire harness connectors from switch.
START
F
A
5. With the use of a multimeter (ohms setting), test ignition switch by verifying continuity between switch terminals for each switch position.
E
B
C
D
REAR VIEW
FRONT VIEW
6. Connect the harness connectors to the switch after
testing.
Figure 7
7. On blowers with serial numbers below 310000000,
install blower housing onto engine (see the Kohler Engine Service Manual at the end of Chapter 3 -- Engine).
POSITION
8. 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.
START
ProForce Debris Blower
R
POSITION
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal
(see Battery Service in the Service and Repairs section
of this chapter). Position disconnected negative cable
away from the negative battery terminal.
3. On blowers with serial numbers below 310000000,
remove engine blower housing to gain access to ignition
switch (see the Kohler Engine Service Manual at the end
of Chapter 3 -- Engine).
S
Figure 5
Testing
1. Make sure that ignition switch is OFF.
G
45 o
CIRCUITS
OFF
NONE
RUN
B + C + F, D + E
Page 4 -- 9 Rev. B
A+B+C
Figure 8
Electrical System
Hour Meter
The hour meter used on the ProForce Debris Blower records the amount of time that the engine is running.
00001
1. Make sure that ignition switch is OFF.
HOURS
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal
(see Battery Service in the Service and Repairs section
of this chapter). Position disconnected negative cable
away from the negative battery terminal.
+
Hobbs
QUARTZ
Testing
1
10
FRONT
BACK
Figure 7
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.
Electrical System
Page 4 -- 10
ProForce Debris Blower
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).
3
The engine wire harness includes a 30 amp fuse for circuit protection. The engine fuse is located near the starter motor (Fig. 9).
Testing
1
2
1. Make sure that ignition switch is OFF.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal
(see Battery Service in the Service and Repairs section
of this chapter). Position disconnected negative cable
away from the negative battery terminal.
3. Press latch that retains fuse holder cover and raise
cover to access fuse.
Figure 8
1. Wire harness
2. Fuse
3. Fuse cover
4. With the use of a multimeter (ohms setting), check for
continuity between fuse terminals by using test ports at
top of fuse. Fuse should have continuity between fuse
terminals.
5. If necessary, remove and replace fuse.
Electrical
System
2
1
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 9
1. Engine fuse
ProForce Debris Blower
Page 4 -- 11
2. Starter motor
Electrical System
Fusible Link (Serial Number Below 310000000)
ProForce Debris Blowers with a serial number below
310000000 use a fusible link for circuit protection. This
fusible link connects the main wire harness to the starter
B+ terminal and positive battery cable (Fig. 12). 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.
2
Testing
1
1. Make sure that ignition switch is OFF.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal
(see Battery Service in the Service and Repairs section
of this chapter). Position disconnected negative cable
away from the negative battery terminal.
Figure 12
1. Fusible link
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. 13). If the fusible
link is open (no continuity), replace the fusible link harness.
2. Starter B+ terminal
FUSIBLE LINK HARNESS
P1
HARNESS
J1
BATTERY B+
Figure 13
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.
Electrical System
Page 4 -- 12 Rev. B
ProForce Debris Blower
Relays
ProForce blowers with serial numbers below
310000000 include a second relay. The power relay on
these machines is used to provide machine electrical
power when it is energized by the Remote Control Module.
ProForce blower models 44538 and 44539 with serial
numbers above 312000000 include an additional three
(3) relays: a start relay and two (2) relays for energizing
the chute rotation motor. These relays are energized by
the Wireless Control Module when a remote transmitter
input is entered for engine starting or chute rotation.
The relays are secured to the control tower bracket next
to the engine. The relays can be identified by the wire
colors at the wire harness connector (see Wire Harness
Drawings in Chapter 7 -- Electrical Diagrams).
Testing
1. Make sure that ignition switch is OFF.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal
(see Battery Service in the Service and Repairs section
of this chapter). Position disconnected negative cable
away from the negative battery terminal.
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 and multimeter leads from the
relay terminals.
7. Connect multimeter (ohms setting) leads to relay terminals 30 and 87A. Ground terminal 86 and apply +12
VDC to terminal 85. The relay should not have continuity
between terminals 30 and 87A as +12 VDC is applied to
terminal 85. The relay should 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.
3. Locate relay and disconnect the machine wire harness connector from the relay. Remove relay from machine for easier testing.
86
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.
85
87A
87
30
Figure 14
ProForce Debris Blower
Page 4 -- 13
Rev. C
Electrical System
Electrical
System
The electrical system on all ProForce Debris Blowers includes a fuel relay that 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 Wireless Control Module.
Remote Transmitter (Machines with Single Channel Controller)
NOTE: Machines with a single channel controller can
be identified by the external antenna on the control module (Fig. 15).
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.
Remote Transmitter Battery Replacement
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.
3
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.
2
1
Figure 15
1. Remote transmitter
2. Control module
Pressing the Speed Decrease (turtle) button when the
engine is running causes the engine speed to decrease.
3. External antenna
7
5
Pressing the RH Nozzle Rotate button causes the blower nozzle to rotate to the right.
1
Pressing the LH Nozzle Rotate button causes the blower nozzle to rotate to the left.
4
Pressing the engine Stop button causes the engine to
stop running.
2
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 transmitter has diminished or the transmitter LED does not flicker when a
button is pressed, the batteries should be replaced.
Electrical System
3
6
Figure 16
1.
2.
3.
4.
Page 4 -- 14
Speed increase
Speed decrease
RH nozzle rotate
LH nozzle rotate
Rev. C
5. Engine stop
6. Engine start
7. Remote control LED
ProForce Debris Blower
Remote Transmitter (Machines with Multi Channel Controller)
NOTE: Machines with a multi channel controller can be
identified by the lack of an external antenna on the control module (Fig. 17).
NOTE: Additional information regarding the remote
transmitter is included in the Operator’s Manual.
The remote transmitter is powered by three (3) AAA alkaline batteries. If the range of the transmitter has diminished or the transmitter TX LED does not illuminate
when a button is pressed, the transmitter batteries
should be replaced.
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. 17). 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
TX LED on the remote should illuminate and then blink
(Fig. 18). If the machine control module is energized
(control module health LED is illuminated) and a remote
transmitter button is pressed, the control module TX/RX
LED should blink.
2
Figure 17
2. Control module
1. Remote transmitter
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. If any transmitter buttons are pressed out of order during the starting sequence, the sequence will be
aborted.
Electrical
System
If the control module is energized (control module health
LED is illuminated), remote transmitter button functions
are as follows:
1
7
Pressing the LH Nozzle Rotate button causes the blower nozzle to rotate to the left.
8
Pressing the RH Nozzle Rotate button causes the blower nozzle to rotate to the right.
9
1
2
3
4
5
6
Pressing the Speed Decrease (turtle) button when the
engine is running causes the engine speed to decrease.
Pressing the Speed Increase (rabbit) button when the
engine is running causes the engine speed to increase.
NOTE: Pressing the speed increase and speed decrease buttons simultaneously will return the engine to
low idle speed.
Pressing the Engine Stop button causes the engine to
stop running.
ProForce Debris Blower
Figure 18
1.
2.
3.
4.
5.
Page 4 -- 15
LH nozzle rotate
RH nozzle rotate
Speed decrease
Speed increase
Engine start
Rev. C
6.
7.
8.
9.
Engine stop
TX LED
RX LED
Link LED
Electrical System
Wireless Control Module (Machines with Single Channel Controller)
NOTE: Machines with a single channel controller can
be identified by the external antenna on the control module (Fig. 15).
The wireless 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. 19).
Inputs from the 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.
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 and the wire harness connector
from the wireless control module to prevent damage to the electrical system.
1
3
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. 20).
When a remote transmitter button is pressed, the corresponding control module LED should illuminate and the
control module RF activity LED should flicker (Fig. 20).
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.
2
Figure 19
3. External antenna
1. Remote transmitter
2. Control module
Model: 44538
Tested to Compl y
With FCC Standar ds
FOR HOME OR OFFICE US E
1
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 about five (5) seconds.
N1625
Canada
3575APFB1
3
The control module includes a time--out feature to allow
machine operation for a time period 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 time period. Refer to your Operator’s
Manual for additional details on the time--out feature.
The control module does not connect to an external
computer or hand held device, can not be re--programmed and does not record any fault data. The machine wire harness does include a communication port
with loopback connector that should remain connected.
Electrical System
Made in U.S .A.
2
4
7
5
8
6
9
Figure 20
1.
2.
3.
4.
5.
Page 4 -- 16
Speed increase LED
Speed decrease LED
RH nozzle rotate LED
LH nozzle rotate LED
Engine stop LED
Rev. C
6.
7.
8.
9.
Engine start LED
Time out LED
Power LED
RF activity LED
ProForce Debris Blower
Wireless Control Module (Machines with Multi Channel Controller)
NOTE: Machines with a multi channel controller can be
identified by the lack of an external antenna on the control module (Fig. 21).
The wireless 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 engine.
IMPORTANT: Before performing any welding on the
machine, disconnect the negative battery cable
from the battery and the wire harness connector
from the wireless control module to prevent damage to the electrical system.
Inputs from the machine ignition switch and the remote
transmitter are monitored by the control module. Output
to the fuel relay, start relay, engine starter motor solenoid, engine throttle control module and nozzle rotation
relays are controlled based on the inputs received by the
control module.
1
2
Figure 21
1. Remote transmitter
2. Control module
When a remote transmitter button is pressed, the control
module TX/RX LED should flicker (Fig. 22). The TX/RX
LED will be green when the module is receiving a signal
from the remote and will be red when the module is
transmitting.
1
NOTE: Because of the normal RF activity in the environment, the control module TX/RX LED may flicker or
be illuminated at any time during machine operation.
Machine operation will only be controlled by the remote
transmitter that is associated to the control module.
The control module includes a power save mode if the
module is active for more than 2.5 hours without communication from the remote transmitter. Once in the
power save mode, the control module will not communicate with the remote transmitter, will not activate any
machine outputs and will not function normally. All machine electrical power will be shut--off including turning
off the engine, if running. Refer to your Operator’s
Manual for additional details on the power save mode.
2
Figure 22
1. Health LED
2. TX/RX LED
The control module does not connect to an external
computer or hand held device, can not be re--programmed and does not record any fault data. 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.
ProForce Debris Blower
Page 4 -- 17 Rev. C
Electrical System
Electrical
System
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 Health LED should
be illuminated green during normal blower operation
(Fig. 22). If the Health LED is illuminated either yellow
or red, a problem exists with the controller.
Diode Assembly (Serial Number Below 310000000)
ProForce Debris Blowers with a serial number below
310000000 use a diode assembly in the wire harness
(Fig. 23) (see wire harness drawings in Chapter 7 -Electrical Diagrams). The diode allows 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
(see Battery Service in the Service and Repairs section
of this chapter). 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.
1
2
Figure 23
1. Machine wire harness
2. Diode assembly
4. Unplug the diode from the wire harness for testing.
5. The diode (Fig. 24) can be tested using a digital
multimeter (diode test or ohms setting) and the table in
the right column.
2
1
3
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.
Electrical System
1. Diode
2. Male terminal
Figure 24
3. Female terminal
Multimeter
Red Lead (+)
on Terminal
Multimeter
Black Lead (--)
on Terminal
Continuity
Female
Male
YES
Male
Female
NO
Page 4 -- 18
Rev. B
ProForce Debris Blower
Electrical
System
This page is intentionally blank.
ProForce Debris Blower
Page 4 -- 19
Electrical System
Service and Repairs
NOTE: See the Kohler Engine Service Manual (included at the end of Chapter 3 -- Engine) for engine electrical component repair information.
Nozzle Motor
26
25
FRONT
18
3
RIGHT
4
1
20
2
16
20
16
21
19 24
15
23
15
13
14
6
20
5
17
12
7
9
11
10
22
8
Figure 25
1.
2.
3.
4.
5.
6.
7.
8.
9.
Nozzle
Nozzle clamp
V belt
Housing assembly
Flat washer (10 used)
R--clamp
Nozzle motor
Motor bracket
Cap screw (3 used)
10.
11.
12.
13.
14.
15.
16.
17.
18.
Drive pulley
Lock nut
Cap screw (2 used)
Belt guard
Flange head screw (2 used)
Flat washer
Cap screw
Flange nut (2 used)
Flange nut
19.
20.
21.
22.
23.
24.
25.
26.
Leaf spring
Bearing
Cap screw (2 used)
Flange nut (2 used)
Shoulder bolt
Lock nut
Nozzle pulley
Nozzle guide
NOTE: If nozzle motor wear or damage occurs, motor
replacement is necessary. Individual components for
the nozzle motor are not available.
Electrical System
Page 4 -- 20
ProForce Debris Blower
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
(see Battery Service in the Service and Repairs section
of this chapter). 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.
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. 26). 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.
NOTE: The shaft of the nozzle motor is tapered.
1
8. Use appropriate puller to loosen drive pulley from
nozzle motor.
9. Remove flange nut and drive pulley from nozzle motor shaft.
3
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.
3
Installation (Fig. 25)
2
1. Position nozzle motor to bracket and secure with
three (3) cap screws.
2. Thoroughly clean tapered surfaces of motor shaft
and drive pulley.
ProForce Debris Blower
4
Figure 26
1. Drive pulley
2. Leaf spring
Page 4 -- 21
3. Flange head screw
4. Torque wrench access
Electrical System
Electrical
System
Removal (Fig. 25)
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.
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).
3. Leave battery cables disconnected if the battery is
stored on the machine.
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.
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).
CAUTION
Connecting battery cables to the wrong battery post could result in personal injury and/or
damage to the electrical system.
CAUTION
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.
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.
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.
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.
Electrical System
Page 4 -- 22
ProForce Debris Blower
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.
1
RIGHT
2
FRONT
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 80oF (26.7oC)
Discharged: less than 1.240
4
Figure 27
Strap
Battery box cover
Battery
Battery box
5. Positive cable
6. Negative cable
7. Flange nut
1. Check battery case for cracks. Replace battery if
cracked or leaking.
Battery Removal and Installation (Fig. 27)
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.
2. 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.
3. 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.
4. Check that the cover seal is not broken away. Replace the battery if the seal is broken or leaking.
5. 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 maximum fill
lines. Charge at 15 to 25 amps for 15 minutes to allow
sufficient mixing of the electrolyte.
Page 4 -- 23
Electrical System
Electrical
System
Battery Inspection and Maintenance
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)
ProForce Debris Blower
5
6
1.
2.
3.
4.
Battery Specifications
BCI Group Size 28
535 CCA at 0o F (--18o C)
Reserve Capacity of 110 minutes at 80oF (27oC)
5. Install battery box cover and secure with strap.
7
3
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.
Battery Testing
1. 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.
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 instructions. Connect a digital multimeter to the
battery terminals.
B. Temperature correct each cell reading. For each
10oF (5.5oC) above 80oF (26.7oC) add 0.004 to the
specific gravity reading. For each 10oF (5.5oC) below 80oF (26.7oC) subtract 0.004 from the specific
gravity reading.
F. Apply a test load of 270 amps (one half the Cranking Performance rating of the battery) for 15 seconds.
Example: Cell Temperature
100oF
Cell Gravity
1.245
100oF minus 80oF equals 20oF
(37.7oC minus 26.7oC equals 11.0oC)
20oF multiply by 0.004/10oF equals 0.008
(11oC multiply by 0.004/5.5oC equals 0.008)
ADD (conversion above)
0.008
Correction to 80oF (26.7oC)
1.253
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:
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.
Minimum
Voltage
2. 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
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.
Follow the battery load tester manufacturer’s
instructions when using a battery load tester.
A. Check the voltage across the battery terminals
prior to load testing the battery. If the voltage is less
than 12.4 VDC, recharge the battery.
Electrical System
Page 4 -- 24
ProForce Debris Blower
Battery Charging
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 battery charger manufacturer’s instructions or the following table:
Battery
Reserve
Capacity
(Minutes)
CAUTION
Do not charge a frozen battery because it can explode and cause injury. Let the battery warm to
60o 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 125oF (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.
Battery Charge Level
(Percent of Fully Charged)
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 15.8 hrs
@
@
4 amps 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
12 hrs
18 hrs
24 hrs
@
@
@
@
10 amps 10 amps 10 amps 10 amps
ProForce Debris Blower
Page 4 -- 25
Electrical System
Electrical
System
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.
This page is intentionally blank.
Electrical System
Page 4 -- 26
ProForce Debris Blower
Chapter 5
Blower Assembly
Table of Contents
Blower
Assembly
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . 2
Operators Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Electrical Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SPECIAL TOOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
SERVICE AND REPAIRS . . . . . . . . . . . . . . . . . . . . . . 4
Blower Drive Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Rotor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Rotor Shaft (Serial Number Below 313000000) . 8
Rotor Shaft (Serial Number Above 313000000) 10
Nozzle Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Inner Housing Assembly . . . . . . . . . . . . . . . . . . . . 14
ProForce Debris Blower
Page 5 -- 1
Rev. C
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 (see
Battery Service in the Service and Repairs section of
Chapter 4 -- Electrical System).
Reattach the disconnected negative battery cable as
the last step in any repair. Secure cable with flange nut.
Torque nut from 10 to 15 ft--lb (14 to 20 N--m).
Blower Assembly
Page 5 -- 2
ProForce Debris Blower
Special Tools
Offset Wrench
The offset wrench is used to properly tighten the nuts
that secure the rotor assembly to the rotor shaft. Use
with 1/2” torque wrench at right angle to offset wrench
handle to ensure that proper torque is applied to nut.
NOTE: Two (2) offset wrenches are required to properly tighten the rotor assembly nuts.
Toro Part Number: TOR6006
Blower
Assembly
Figure 1
ProForce Debris Blower
Page 5 -- 3
Blower Assembly
Service and Repairs
Blower Drive Shaft
RIGHT
FRONT
Loctite #242
300 to 330 in--lb
(34 to 37 N--m)
1
4
11
1
2
5
8
9
1
10
5
3
7
6
13
4
1
9
9
10
3
12
11
300 to 330 in--lb
(34 to 37 N--m)
Figure 2
1.
2.
3.
4.
5.
Flange nut
Fan hub
Cap screw
Spacer
Spacer
6.
7.
8.
9.
Flat washer
Cap screw
Drive coupling
Flat washer
10.
11.
12.
13.
Cap screw
Woodruff key
Drive shaft
Engine hub and coupling assembly
NOTE: The coupling assembly between the blower
shaft and drive shaft (item 12) is illustrated in Figure 2.
The coupling assembly (item 13) used between the
drive shaft (item 12) and engine shaft is composed of the
same components (Fig. 3).
Blower Assembly
Page 5 -- 4
ProForce Debris Blower
Removal (Fig. 2)
2. Place coupling spacers into rubber coupling.
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.
3. Secure drive couplings to drive shaft with cap screws
and lock nuts using Figures 2 and 3 as guides.
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal
(see Battery Service in the Service and Repairs section
of Chapter 4 -- Electrical System). Position disconnected negative cable away from the negative battery
terminal.
3. Remove top grill to allow access to blower drive shaft
(see Guards Removal in the Service and Repairs section of Chapter 6 -- Chassis).
4. Remove cap screws, flat washers and lock nuts that
secure drive shaft assembly to hubs on engine shaft and
blower shaft.
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 (see Guards Installation in
the Service and Repairs section of Chapter 6 -- Chassis).
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.
5. Lift drive shaft assembly from machine.
12
6. Disassemble drive couplings from drive shaft using
Figures 2 and 3 as guides. Note differences in coupling
spacer flange thickness for assembly purposes.
11
10
7. Inspect drive couplings for damage and replace if
necessary.
9
7
8. If necessary, remove hubs from engine shaft and
blower shaft:
8
2
1
3
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. 2)
5
Loctite #242
6
4
300 to 330 in--lb
(34 to 37 N--m)
Figure 3
1.
2.
3.
4.
5.
6.
Cap screw
Flat washer
Cap screw
Spacer
Cap screw
Woodruff key
7.
8.
9.
10.
11.
12.
Shaft hub
Flat washer
Flange nut
Spacer
Drive coupling
Fan hub/coupling
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.
ProForce Debris Blower
Page 5 -- 5 Rev. B
Blower Assembly
Blower
Assembly
A. Remove cap screw and flat washer that secure
hub to shaft.
Rotor Assembly
SERIAL NUMBER BELOW 310000000
10
9
See text for
tightening procedure
Loctite #242
8
7
6
5
2
3
4
11
1
12
RIGHT
13
FRONT
Figure 4
1.
2.
3.
4.
5.
Inlet bell
Retaining ring
Wave washer (up to 3 used)
Front cap
Nut (LH threads)
6.
7.
8.
9.
Spacer
Rotor assembly
Woodruff key
Rotor shaft
NOTE: ProForce blowers with a serial number below
310000000 use two (2) nuts to secure rotor assembly to
rotor shaft (Fig. 4). Blowers with serial numbers above
310000000 use one (1) nut (Fig. 5).
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
(see Battery Service in the Service and Repairs section
of Chapter 4 -- Electrical System). Position disconnected negative cable away from the negative battery
terminal.
Blower Assembly
10.
11.
12.
13.
Outer housing
Flange nut (8 used)
Washer (as needed)
Cap screw (8 used)
3. Remove top grill to allow access to blower assembly
(see Guards Removal in the Service and Repairs section of Chapter 6 -- Chassis).
4. Remove blower drive shaft from machine (see Blower Drive Shaft Removal in this section).
5. Remove retaining ring (item 2), wave washer(s)
(item 3) and front cap (item 4) from shaft.
NOTE: When loosening nuts that secure rotor assembly to rotor shaft, use a 1 1/4” wrench in flats on shaft to
prevent the shaft from turning.
IMPORTANT: The nuts used to secure the rotor assembly to the rotor shaft have left hand threads.
Loosen these nuts by rotating clockwise.
Page 5 -- 6
Rev. B
ProForce Debris Blower
A. On machines with serial numbers below
310000000 (Fig. 4), remove outer nut from rotor
shaft by rotating nut in a clockwise direction. Then,
remove inner nut by rotating nut clockwise. Use offset wrench (see Special Tools) to loosen nuts from
rotor shaft.
SERIAL NUMBER ABOVE 310000000
3
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(s) (item 12), rotor assembly and then spacer
(item 6) onto shaft. Make sure that rotor does not contact
rotor housing. If necessary, add additional washer(s) to
allow proper clearance.
IMPORTANT: The nuts used to secure the rotor assembly to the rotor shaft have left hand threads.
Tighten these nuts by rotating counter--clockwise.
10
2
NOTE: Washers (item 12) are used to prevent rotor
from contacting rotor housing assembly. Typically, two
(2) washers are required.
8. Remove rotor assembly from rotor shaft.
11
4
B. On machines with serial numbers above
310000000 (Fig. 5), straighten inner tab washer to
allow removal of nut. Remove nut from rotor shaft by
rotating nut in a clockwise direction. Remove two (2)
tab washers from rotor shaft.
7. Slide spacer (item 6), rotor assembly and washer(s)
(item 12) from shaft. Locate and retrieve woodruff key.
9
190 to 210 ft--lb
(258 to 284 N--m)
8
1
5
6
7
Figure 5
1.
2.
3.
4.
5.
6.
Retaining ring
Wave washer
Front cap
Nut (LH threads)
Inner tab washer
Outer tab washer
7.
8.
9.
10.
11.
Spacer
Rotor assembly
Washer (as needed)
Woodruff key
Rotor shaft
D. Apply Loctite #242 (or equivalent) to exposed
threads of rotor shaft.
E. While holding inner nut with offset wrench (see
Special Tools) to prevent it from turning, install and
torque outer nut with second offset wrench from 190
to 210 ft--lb (258 to 284 N--m).
3. On machines with serial numbers above 310000000
(Fig. 5), secure rotor assembly to rotor shaft as follows:
A. Slide inner tab washer (larger OD) and then outer
tab washer onto rotor shaft.
NOTE: When installing nuts that secures rotor assembly to shaft, use a 1 1/4” wrench in flats on shaft to prevent the shaft from turning.
B. While holding rotor shaft with a 1 1/4” wrench in
flats on shaft to prevent the shaft from turning, install
nut and torque with offset wrench (see Special Tools)
from 190 to 210 ft--lb (258 to 284 N--m).
2. On machines with serial numbers below 310000000
(Fig. 4), secure rotor assembly to rotor shaft as follows:
C. Bend inner tab washer over flat of nut.
A. Clean rotor shaft threads with brake parts cleaner
or similar non--oily cleaner and allow to dry. After
cleaner dries completely, apply Loctite Primer N (or
equivalent) to shaft threads. Allow primer to dry completely.
B. Apply Loctite #242 (or equivalent) to threads of
rotor shaft.
C. While holding rotor shaft with a 1 1/4” wrench in
flats on shaft to prevent the shaft from turning, install
inner nut and torque with offset wrench (see Special
Tools) from 50 to 60 ft--lb (68 to 81 N--m) to secure
rotor assembly on shaft.
ProForce Debris Blower
4. Install front cap (item 4), wave washer(s) (item 3) and
retaining ring (item 2) onto shaft. Up to three (3) wave
washers might be necessary to secure front cap.
5. Install blower drive shaft (see Blower Drive Shaft
Installation in this section).
6. Install top grill to machine (see Guards Installation in
the Service and Repairs section of Chapter 6 -- Chassis).
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.
Page 5 -- 7 Rev. B
Blower Assembly
Blower
Assembly
6. Remove nut(s) that secures rotor assembly:
Rotor Shaft (Serial Number Below 313000000)
180 to 200 in--lb
(21 to 23 N--m)
3
2
7
6
4
5
4
5
1
Loctite
Product 641
8
SERIAL NUMBER BELOW 310000000
8
180 to 200 in--lb
(21 to 23 N--m)
9
5
2
10
5
7
3
1
9
4
11
4
SERIAL NUMBER FROM 310000000
TO 313000000
Figure 6
1.
2.
3.
4.
Cap screw (4 used)
Bearing holder
Rotor shaft
Retaining ring
5.
6.
7.
8.
Bearing (2 used)
Front bearing cap
Flange head screw (4 used)
Inner housing
NOTE: The rotor shaft and bearings can be serviced
without removing inner housing from machine.
NOTE: Several changes were made to the rotor shaft
assembly above machine serial number 310000000.
Figure 6 shows both the earlier and later illustration for
the inner housing assembly used on machines with serial number below 313000000.
NOTE: If inner housing has been replaced by a later
housing version, use appropriate illustration and service
procedures. Rotor shaft for machines with serial number
above 313000000 is described later in this section.
Blower Assembly
9. Front bearing cap (2 used)
10. Flange nut (4 used)
11. O--ring
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
(see Battery Service in the Service and Repairs section
of Chapter 4 -- Electrical System). 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).
Page 5 -- 8 Rev. C
ProForce Debris Blower
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. For assembly purposes, use a marker to make a line
across the bearing holder (item 2) and inner housing
(item 8) to show proper alignment.
8. Remove four (4) cap screws that secure bearing
holder to inner housing.
NOTE: On machines with serial numbers below
310000000, 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.
9. Slide rotor shaft and bearing holder assembly from
inner housing.
10.Remove four (4) flange head screws (item 7) that secure front bearing cap to bearing holder. Remove bearing holder from rotor shaft assembly.
11. Using Figure 6 as a guide, remove bearings, retaining rings and front bearing cap from rotor shaft as necessary.
12.On machines with serial numbers above
310000000, remove and discard O--ring (item 11) from
inner housing.
13.Inspect rotor shaft and bearing bores of bearing
holder and inner housing for wear or damage. Replace
parts as necessary.
Installation (Fig. 6)
A. Install inner retaining rings into shaft grooves 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.
ProForce Debris Blower
2. On machines with serial numbers below 310000000:
A. 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 (or equivalent) to bearing bores. Allow
Primer to dry completely.
B. Thoroughly clean OD of bearings on rotor shaft.
Apply Loctite Product 641 (or equivalent) to OD of
both bearings.
3. Slide bearing holder onto bearing on rotor shaft.
Position front bearing cap (item 6 or 9) to bearing holder
and secure with four (4) flange head screws (item 7).
4. On machines with serial numbers above
310000000, install new O--ring (item 11) into inner housing.
NOTE: Later production bearing holder (item 2) has a
groove that locates onto tab on inner housing (item 8).
If equipped, make sure that these items align during assembly.
5. Install rotor shaft assembly into inner housing. Make
sure to align marker line made during disassembly and
that bearing is fully seated in housing bearing bore. Also,
make sure that bearing holder slides fully into inner
housing.
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 200 in--lb (21 to 23 N--m). After tightening screws, make sure that rotor shaft rotates freely.
7. Install rotor assembly (see Rotor Assembly Installation in this section).
1. Install bearings onto rotor shaft:
D. If equipped, install outer retaining rings.
IMPORTANT: To prevent the bearings from rotating
in the inner housing or bearing holder on machines
with serial numbers below 310000000, Loctite Primer N (or equivalent) and Loctite Product 641 (or
equivalent) must be used during assembly.
8. Install blower drive shaft (see Blower Drive Shaft
Installation in this section).
9. Install top grill to machine (see Guards Installation in
the Service and Repairs section of Chapter 6 -- Chassis).
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 5 -- 9 Rev. C
Blower Assembly
Blower
Assembly
4. Remove top grill to allow access to blower assembly
(see Guards Removal in the Service and Repairs section of Chapter 6 -- Chassis).
Rotor Shaft (Serial Number Above 313000000)
Loctite #242
90 to 100 in--lb
(10.2 to 11.3 N--m)
1
9
8
7
3
4
6
5
2
3
6
6
Loctite #242
90 to 100 in--lb
(10.2 to 11.3 N--m)
7
Figure 7
1. Inner housing
2. Rotor shaft
3. Flange head screw (8 used)
4. Bearing cap
5. End cap
6. Retaining ring (4 used)
7. Bearing (2 used)
8. Rear cap
9. O--ring
NOTE: The rotor shaft and bearings can be serviced
without removing inner housing from machine.
5. Remove blower drive shaft from machine (see Blower Drive Shaft Removal in this section).
NOTE: Rotor shaft for machines with serial number below 313000000 is described earlier in this section. If inner housing has been replaced by a later housing
version, use appropriate illustration and service procedures.
6. Remove rotor assembly (see Rotor Assembly Removal in this section).
Removal (Fig. 6)
8. Carefully slide rotor shaft assembly from inner housing. Note slot in inner housing that locates tab on end
cap (item 5) for assembly purposes. Rear cap will remain in inner housing.
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
(see Battery Service in the Service and Repairs section
of Chapter 4 -- Electrical System). 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
(see Guards Removal in the Service and Repairs section of Chapter 6 -- Chassis).
Blower Assembly
7. Remove four (4) flange head screws that secure
bearing cap (item 4) to inner housing.
9. Using Figure 6 as a guide, remove bearing cap (item
4), end cap (item 5), retaining rings (item 6) and bearings (item 7) from rotor shaft as necessary.
10.Remove and discard O--ring (item 9) from rear cap.
11. If necessary, remove rear cap (item 8) from inner
housing.
12.Inspect rotor shaft and bearing bores of bearing cap
and rear cap for wear or damage. Replace parts as necessary.
Page 5 -- 10
Rev. C
ProForce Debris Blower
7. Install rotor assembly (see Rotor Assembly Installation in this section).
Installation (Fig. 6)
1. If removed, install bearings onto rotor shaft:
A. Install inner retaining rings into shaft grooves if
they were removed.
B. Install bearings onto shaft by pressing on inner
race. Make sure that bearings are seated against inner retaining ring.
C. Install outer retaining rings to secure bearings
onto shaft.
2. If rear cap was removed from inner housing, install
rear cap:
A. Slide rear cap (item 8) into housing.
8. Install blower drive shaft (see Blower Drive Shaft
Installation in this section).
9. Install top grill to machine (see Guards Installation in
the Service and Repairs section of Chapter 6 -- Chassis).
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.
B. Apply Loctite #242 (or equivalent) to threads of
flange head screws (item 4).
C. Secure rear cap to inner housing with flange head
screws (item 4). Torque screws from 90 to 100 in--lb
(10.2 to 11.3 N--m).
2
5
4
3
3. Install new O--ring (item 9) into inner housing. After
O--ring installation, clean O--ring to remove all oil,
grease or other material.
4. Position end cap (item 5) between bearings on rotor
shaft.
6. Install bearing cap (item 4) into inner housing (Fig.
8):
A. Slide bearing cap (item 4) into inner housing.
Make sure that cap is fully installed onto rotor shaft
bearing.
Blower
Assembly
1
5. Install rotor shaft assembly into inner housing. Align
tab on end cap (item 5) and slot in inner housing as rotor
shaft assembly is being inserted into inner housing.
Make sure that end cap and bearing are fully seated in
housing bearing bore. Also, align holes in end cap with
threaded holes in inner housing.
Figure 8
1. Inner housing
2. Rotor shaft assembly
3. End cap
4. Bearing cap
5. Flange head screw
B. Apply Loctite #242 (or equivalent) to threads of
flange head screws (item 4).
C. Secure bearing cap to inner housing with flange
head screws (item 7). Torque screws from 90 to 100
in--lb (10.2 to 11.3 N--m).
D. After tightening screws, make sure that rotor
shaft rotates freely.
ProForce Debris Blower
Page 5 -- 11 Rev. C
Blower Assembly
Nozzle Assembly
FRONT
26
45 to 50 in--lb
(5.1 to 5.6 N--m)
RIGHT
25
18
3
4
2
20
28
1
16
27
20
15
23
15
16
13
21
19 24
14
6
20
5
17
12
7
9
8
11
10
22
Figure 9
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Nozzle
Nozzle clamp
V belt
Housing assembly
Flat washer (10 used)
R--clamp
Nozzle motor
Motor bracket
Cap screw (3 used)
Drive pulley
11.
12.
13.
14.
15.
16.
17.
18.
19.
Lock nut
Cap screw (2 used)
Belt guard
Flange head screw (2 used)
Flat washer (2 used per bearing)
Cap screw
Flange nut (2 used)
Flange nut
Leaf spring
20.
21.
22.
23.
24.
25.
26.
27.
28.
Bearing
Cap screw (2 used)
Flange nut (2 used)
Shoulder bolt
Lock nut
Nozzle pulley
Nozzle guide (4 used)
Lock nut
Socket head screw
NOTE: For service information on the nozzle motor
(item 7), refer to the Service and Repairs section of
Chapter 4 -- Electrical System.
3. Loosen socket head screw and lock nut that secures
ends of nozzle clamp. Remove clamp from nozzle and
nozzle pulley.
Removal (Fig. 9)
4. Remove nozzle from outer housing.
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.
5. Remove two (2) cap screws (item 21) and flange nuts
(item 22) that secure leaf spring to motor bracket. Remove leaf spring assembly and flat washers (item 5)
from bracket. If necessary, remove bearing from leaf
spring (Fig. 11).
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal
(see Battery Service in the Service and Repairs section
of Chapter 4 -- Electrical System). Position disconnected negative cable away from the negative battery
terminal.
Blower Assembly
6. Loosen two (2) flange head screws (item 14) and
flange nuts that secure nozzle motor bracket to outer
housing (Fig. 10). Rotate bracket and nozzle motor to
loosen v--belt.
Page 5 -- 12
ProForce Debris Blower
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.
1
8. If necessary, remove nozzle guides, pulley bearings
and nozzle pulley from outer housing using Figures 9
and 12 as guides.
3
Installation (Fig. 9)
1. If removed, install nozzle pulley, pulley bearings and
nozzle guides using Figures 9 and 12 as guides.
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. 10). 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
3
2. Place v--belt in nozzle pulley, route behind belt guard
(item 13) and install belt on motor pulley.
2
Figure 10
1. Drive pulley
2. Leaf spring assembly
3. Flange head screw
4. Torque wrench access
2
1
4
4. Center belt guard around v--belt. Tighten cap screws
and flange nuts to secure belt guard to machine.
5. If bearing was removed from leaf spring (Fig. 11),
position bearing to leaf spring and secure with shoulder
bolt and lock nut.
6. Position leaf spring assembly 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).
3
UP
Figure 11
1. Leaf spring
2. Lock nut
3. Shoulder bolt
4. Bearing
Blower
Assembly
NOTE: When installing the leaf spring assembly, the
leaf spring bearing mounting loops should be orientated
up.
1
2
7. 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).
8. 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.
6
5
3
4
6
Figure 12
1. Outer housing
2. Nozzle pulley
3. Cap screw
ProForce Debris Blower
Page 5 -- 13
4. Nozzle guide (4 used)
5. Flange nut
6. Spacer
Blower Assembly
Inner Housing Assembly
SERIAL NUMBER BELOW 310000000 SHOWN
RIGHT
90 to 100 in--lb
(10.2 to 11.2 N--m)
10 to 20 in--lb
(1.2 to 2.2 N--m)
FRONT
15
13
24
17
12
11
Loctite #242
10
9
See text for
tightening
procedure
18
8
7
6
19
5
20
4
2
16
3
21
23
1
22
14
Figure 13
1.
2.
3.
4.
5.
6.
7.
8.
Inlet bell
Retaining ring
Wave washer (up to 3 used)
Front cap
Nut (LH thread)
Spacer
Rotor assembly
Washer (as needed)
9.
10.
11.
12.
13.
14.
15.
16.
Woodruff key
Stator vane (24 used)
Carriage screw (2 used)
Outer housing
Flange head screw (24 used)
Cap screw (8 used)
Flange head screw (8 used)
Nozzle pulley
NOTE: The rotor shaft and bearings can be serviced
without removing inner housing (item 23) 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.
Blower Assembly
17.
18.
19.
20.
21.
22.
23.
24.
Cap screw (2 used per guide)
Nozzle guide (4 used)
Flange nut (16 used)
Fan housing mount (2 used)
Carriage screw (2 used)
Flange nut (4 used)
Inner housing assembly
Spacer (2 used per guide)
NOTE: ProForce Blowers have used three (3) methods
of securing the inner and outer housings. On machines
with serial number below 310000000 (Fig. 13), the inner
housing is attached directly to the outer housing. On machines with serial number from 310000000 to
313000000, a fin spacer and possibly additional thin
spacers exist between the inner housing flanges and the
outer housing (Fig. 14). Machines with serial number
above 313000000 use four (4) fin mounts with fin
spacers and possibly additional thin spacers that are secured between inner housing and outer housing (Fig.
15). Refer to correct illustration when removing and installing inner and outer housings.
Page 5 -- 14 Rev. C
ProForce Debris Blower
Removal (Fig. 13)
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
(see Battery Service in the Service and Repairs section
of Chapter 4 -- Electrical System). Position disconnected negative cable away from the negative battery
terminal.
6
5
7
4
3
2
1
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
(see Guards Removal in the Service and Repairs section of Chapter 6 -- Chassis).
5. Remove blower drive shaft from machine (see Blower Drive Shaft Removal in this section).
SERIAL NUMBER
FROM 310000000
TO 313000000
Figure 14
1.
2.
3.
4.
Inner housing assembly
Stator vane (24 used)
Fin spacer (4 used)
Thin spacer (as needed)
6. Remove rotor assembly (see Rotor Assembly Removal in this section).
3
5. Flange screw (8 used)
6. Flange screw (24 used)
7. Outer housing
Loctite #242
2
4
7. Remove cap screws and flange nuts that secure outer housing to fan housing mounts (item 20).
5
To prevent personal injury, make sure that fan
housing assembly is properly supported as it is
removed from the machine. Assembly weighs
approximately 70 pounds (31.8 kg).
SERIAL NUMBER
ABOVE 313000000
1
Figure 15
8. Lift fan housing assembly from machine and set on
workbench with rotor shaft pointing straight up (Fig. 17).
9. Place inner housing on two (2) supports (2” x 4” or
equivalent). Then, place 9/16” (14.3 mm) thick support
between supports and outer housing (Fig. 16). This process will support fan housing assembly to prevent unexpected shifting of any components during disassembly.
1. Inner housing
2. Outer housing
3. Fin spacer (4 used)
4. Thin spacer (as needed)
5. Fin mount (4 used)
6. Cap screw (8 used)
3
4
10.Loosen, but do not remove, eight (8) screws (item
15) that secure inner housing to outer housing.
11. Remove flange head screw (item 13) that secures
each stator vane (item 10) to outer housing. Carefully tilt
vane to free vane lugs from inner housing and remove
vane from assembly. Repeat for all twenty four (24)
vanes. 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.
12.Fully remove screws (item 15) that secure inner
housing to outer housing.
ProForce Debris Blower
2
1
Figure 16
1. Support
2. 9/16” support
Page 5 -- 15 Rev. C
3. Outer housing
4. Mounting holes
Blower Assembly
Blower
Assembly
6
CAUTION
13.If equipped (machines with serial numbers above
310000000), locate and retrieve fin mounts, fin spacers
and thin spacers from between inner housing and outer
housing (Fig. 14 or 15). Note location of these components for assembly purposes.
ROUNDED
END
2
3
14.Lift inner housing assembly out of the outer housing.
15.If necessary, disassemble inner housing assembly
(see Rotor Shaft in this section).
INTAKE
END
Installation (Fig. 13)
1. Assemble inner housing if it was disassembled (see
Rotor Shaft in this section).
2. Place inner housing assembly with the rotor shaft
pointing upwards onto two (2) supports (2” x 4” or equivalent). Carefully lower outer housing around inner housing assembly. Then, place 9/16” (14.3 mm) thick support
between supports and outer housing (Fig. 16). This process should allow alignment of mounting holes in inner
housing flanges to outer housing.
3. On machines with serial numbers above
310000000, install fin mounts, fin spacers and thin
spacers (if equipped) between inner housing and outer
housing (Fig. 14 or 15).
NOTE: When assembling inner and outer housings, do
not fully tighten any screws until all screws are installed
to inner housing flanges and stator vanes. Also, use
hand tools rather than air impact tools during assembly.
4. On machines with serial numbers above 313000000
(Fig. 15), apply Loctite #242 (or equivalent) to threads
of screws used to secure inner and outer housings.
5. Make sure that holes in inner housing flanges align
with outer housing holes. Install and finger tighten eight
(8) screws (item 15) into threads of inner housing
flanges. Do not fully tighten screws at this time.
6. Install stator vanes to inner and outer housing:
A. Position a vane between inner and outer housing.
Make sure that rounded end of vane is orientated toward rotor shaft (Fig. 17).
B. Tilt vane and engage vane lugs to inner housing
holes. While keeping vane lugs in inner housing
holes, rotate vane to align threaded hole of vane with
outer housing hole.
C. Install and finger tighten flange head screw (item
12) into threads of vane. Do not fully tighten screw at
this time.
1
4
DISCHARGE
END
5
Figure 17
1. Outer housing
2. Inner housing assembly
3. Stator vane (24 used)
4. Flange head screw
5. Flange head screw
7. Tighten fasteners in the following order to secure assembly:
A. Use nutdriver to hand tighten the eight (8) screws
(item 15) that secure inner housing flanges to outer
housing. Use a crossing pattern while tightening the
screws.
B. Use nutdriver to hand tighten the flange head
screws (item 12) that secure the twenty--four (24)
stator vanes to outer housing. Use a crossing pattern
while tightening the screws.
C. Torque flange head screws (item 15) 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 (item 12) 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.
D. Repeat process for all twenty--four (24) vanes.
Blower Assembly
Page 5 -- 16 Rev. C
ProForce Debris Blower
10.Install blower drive shaft (see Blower Drive Shaft
Installation in this section).
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).
8. Position outer housing assembly to machine. Secure
outer housing to fan housing mounts with cap screws
and flange nuts.
12.Install nozzle pulley and nozzle to rear of outer housing (see Nozzle Assembly Installation in this section).
13.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.
Blower
Assembly
9. Install rotor assembly (see Rotor Assembly Installation in this section).
11. Install top grill to machine(see Guards Installation in
the Service and Repairs section of Chapter 6 -- Chassis).
ProForce Debris Blower
Page 5 -- 17 Rev. C
Blower Assembly
This page is intentionally blank.
Blower Assembly
Page 5 -- 18
ProForce Debris Blower
Chapter 6
Chassis
Table of Contents
Chassis
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
Guards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
ProForce Debris Blower
Page 6 -- 1 Rev. B
Chassis
Specifications
Item
Description
Tires
Size
Pressure
20 x 10 -- 8, 4 Ply, Tubeless
14 PSI (96.5 kPa)
Wheel Lug Nut Torque
Chassis
70 to 90 ft--lb (95 to 122 N--m)
Page 6 -- 2 Rev. B
ProForce Debris Blower
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
2
3
Figure 1
1. Tow vehicle hitch
2. Hitch pin
3. Hairpin clip
Electrical Power
Chassis
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 (see
Battery Service in the Service and Repairs section of
Chapter 4 -- Electrical System).
Reattach the disconnected negative battery cable as
the last step in any repair. Secure cable with flange nut.
Torque nut from 10 to 15 ft--lb (14 to 20 N--m).
ProForce Debris Blower
Page 6 -- 3
Chassis
Service and Repairs
Wheels
RIGHT
FRONT
2
70 to 90 ft--lb
(95 to 122 N--m)
1
5
3
4
Figure 2
1. Main frame
2. Engine
Chassis
3. Wheel hub assembly
4. Wheel and tire assembly
Page 6 -- 4 Rev. B
5. Lug nut (4 used per wheel)
ProForce Debris Blower
Wheel Removal (Fig. 2)
Wheel Installation (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.
1. Position wheel to wheel hub on raised machine.
2. To prevent unexpected blower operation, disconnect
the negative battery cable from the battery terminal (see
Battery Service in the Service and Repairs section of
Chapter 4 -- Electrical System). 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).
WARNING
Failure to maintain proper lug nut torque could
result in failure or loss of wheel and may result in
personal injury.
3. Lower machine to ground. Alternately torque lug
nuts from 70 to 90 ft--lb (95 to 122 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.
Chassis
5. Remove lug nuts and pull wheel from machine wheel
hub.
2. Secure wheel to ProForce blower with four (4) lug
nuts.
ProForce Debris Blower
Page 6 -- 5 Rev. B
Chassis
Wheel Hubs and Bearings
SERIAL NUMBER BELOW 310000000 SHOWN
See text for
tightening procedure
13
1
6
5
9
RIGHT
3
11
FRONT
10
12
2
27 to 33 ft--lb
(37 to 44 N--m)
3
4
7
8
Figure 3
1.
2.
3.
4.
5.
Axle (2 used)
Grease seal
Bearing cone (2 used per axle)
Bearing cup (2 used per axle)
Wheel hub
6.
7.
8.
9.
Lug screw (4 used per hub)
Tab washer
Nut retainer
Flange nut (3 used per axle)
NOTE: Machines with serial number above 310000000
either use an axle mount that is fastened to the frame
(Fig. 4) or have a suspension axle for road ready machines (Fig. 5). Wheel hub and bearing service is the
same for all axle types.
Chassis
10.
11.
12.
13.
Cotter pin
Jam nut
Dust cap
Carriage screw (3 used per axle)
Disassembly (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.
Page 6 -- 6 Rev. B
ProForce Debris Blower
D. Lubricate the inside of new grease seal and press
it into the wheel hub.
2. To prevent unexpected blower operation, disconnect
the negative battery cable from the battery terminal (see
Battery Service in the Service and Repairs section of
Chapter 4 -- Electrical System). 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).
E. If lug screws were removed from hub, press
screws fully into hub. Make sure that lug screw flange
is pressed fully to hub surface.
SERIAL NUMBER ABOVE 310000000 SHOWN
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
7
6
8. Disassemble wheel hub:
2
A. Remove grease seal from the wheel hub taking
care to not damage the hub bore. Discard seal.
1
3
4
27 to 33 ft--lb
(37 to 44 N--m)
B. Remove bearing cones from both sides of wheel
hub. Clean bearings in solvent. Clean inside of hub.
5
27 to 33 ft--lb
(37 to 44 N--m)
Figure 4
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.
1.
2.
3.
4.
Frame
Carriage screw
Axle
Flange nut
E. If necessary, press lug screws from hub.
5.
6.
7.
8.
Hub assembly
Lock nut
Carriage screw
Axle mount
SUSPENSION AXLE SHOWN
9. Inspect axle spindle for wear or damage. Replace
axle if necessary. Refer to appropriate axle illustration
for fastener torque values.
Assembly (Fig. 3)
2. Assemble wheel hub:
2
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.
ProForce Debris Blower
Chassis
1. Thoroughly clean all wheel hub components before
assembly.
1
5
3
67 to 83 ft--lb
(91 to 112 N--m)
4
Figure 5
1. Frame
2. Carriage screw
3. Axle
Page 6 -- 7 Rev. B
4. Lock nut
5. Hub assembly
Chassis
3. Install the wheel hub onto the axle spindle taking
care to not damage grease seal in hub.
7. Install wheel assembly (see Wheel Installation in this
section).
4. Install greased outer bearing cone, tab washer and
jam nut onto spindle shaft.
8. Carefully lower machine to ground. Make sure to
properly torque wheel lug nuts from 70 to 90 ft--lb (95
to 122 N--m).
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).
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.
6. Install nut retainer and cotter pin to secure jam nut.
Install dust cap to hub.
WARNING
Failure to maintain proper lug nut torque could
result in failure or loss of wheel and may result in
personal injury.
Chassis
Page 6 -- 8 Rev. B
ProForce Debris Blower
Chassis
This page is intentionally blank.
ProForce Debris Blower
Page 6 -- 9 Rev. B
Chassis
Guards
SERIAL NUMBER BELOW 311000000 SHOWN
RIGHT
FRONT
4
6
1
3
2
2
6
1
5
3
Figure 6
1. Cap screw (2 used)
2. Washer (2 used)
Chassis
3. Flange nut (2 used)
4. Top grill
Page 6 -- 10 Rev. B
5. Side grill
6. Flange head screw (2 used)
ProForce Debris Blower
Removal
SERIAL NUMBER ABOVE 311000000 SHOWN
1. Park machine on a level surface. Make sure engine
is OFF. Chock wheels to prevent machine from moving.
6
1
2. To prevent unexpected machine operation, disconnect the negative battery cable from the battery terminal
(see Battery Service in the Service and Repairs section
of Chapter 4 -- Electrical System). Position disconnected negative cable away from the negative battery
terminal.
CAUTION
7
2
4
3
4
5
The engine may be hot. Allow engine to cool before removing guards from machine.
3. Remove guards from machine as needed using Fig.
6 or 7 as a guide.
NOTE: Machines with serial number above 311000000
use a muffler mount to support the front of the top grill
(Fig. 7). Removal of the muffler mount on these machines requires removal of the blower driveshaft or engine.
Figure 7
Installation
Cap screw (2 used)
Washer (2 used)
Flange screw (2 used)
Flange nut (2 used)
5. Muffler mount
6. Top grill
7. Tinnerman nut (2 used)
Chassis
1. Install removed guards from machine using Figs. 6
or 7 as a guide.
1.
2.
3.
4.
ProForce Debris Blower
Page 6 -- 11 Rev. B
Chassis
This page is intentionally blank.
Chassis
Page 6 -- 12 Rev. B
ProForce Debris Blower
Chapter 7
Electrical Diagrams
Table of Contents
Electrical
Diagrams
ELECTRICAL SCHEMATICS
Model 44538 with Serial Number Below
310000000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Models 44538 and 44539 with Serial Number
From 310000000 to 311999999 & Model 44542
(all Serial Numbers) . . . . . . . . . . . . . . . . . . . . . . . 4
Models 44538 and 44539 with Serial Number
Above 312000000 . . . . . . . . . . . . . . . . . . . . . . . . . 5
ENGINE ELECTRICAL DIAGRAMS
Serial Number Below 310000000 . . . . . . . . . . . . . 6
Serial Number Above 310000000 . . . . . . . . . . . . . 7
CIRCUIT DRAWINGS
Control Module Wake Up . . . . . . . . . . . . . . . . . . . . . 8
Crank Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Run Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Engine Speed Increase Circuits . . . . . . . . . . . . . . . 11
Nozzle Rotation Circuits . . . . . . . . . . . . . . . . . . . . 12
WIRE HARNESS DRAWINGS
Model 44538 with Serial Number Below
310000000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Models 44538 and 44539 with Serial Number
From 310000000 to 311999999 & Model 44542
(all Serial Numbers) . . . . . . . . . . . . . . . . . . . . . . 16
Models 44538 and 44539 with Serial Number
Above 312000000 . . . . . . . . . . . . . . . . . . . . . . . . 18
ProForce Debris Blower
Page 7 -- 1 Rev. C
Electrical Diagrams
This page is intentionally blank.
Electrical Diagrams
Page 7 -- 2
ProForce Debris Blower
B+
START
BLUE
FUEL SOLENOID OUT (RED)
RED/WHITE
FUEL SOLENOID (RED/WHITE)
RED
ENGINE KILL (WHITE)
RED
OIL PRESSURE SWITCH (GREEN)
RED/WHITE
GREEN
COIL POWER
GRAY
GREEN
RED/YELLOW
THROTTLE CONTROL
GRAY
ENGINE
NOZZLE
BLUE
GREEN
GREEN
WHITE
PINK
BLACK
GRAY
YELLOW/BLACK
RED/YELLOW
GREEN/BLACK
BLACK
GRAY
ORANGE/BLACK
GRAY
BLACK
RED
BATTERY
FUSIBLE
LINK
GRAY
INLINE FUSE (15A)
YELLOW
PINK
BLACK
GREEN
ProForce Debris Blower
Model 44538 with Serial Number
Below 310000000
Electrical Schematic
All ground wires are black.
Page 7 -- 3
Rev. C
GRAY
BLUE
RED
RED/WHITE
RED/WHITE
GRAY
GREEN
GREEN
GRAY
RED/YELLOW
GREEN
WHITE
BLUE
GREEN
PINK
BLACK
GRAY
YELLOW/BLACK
RED/YELLOW
RED
PINK
YELLOW
BLUE
GREEN/BLACK
BLACK
GRAY
ORANGE/BLACK
ProForce Debris Blower
Models 44538 and 44539 with Serial Number
From 310000000 to 311999999
Model 44542 (all Serial Numbers)
Electrical Schematic
All ground wires are black.
Page 7 -- 4
Rev. C
YELLOW
BROWN
WHITE
WHITE
BROWN
BROWN
YELLOW
GREEN
BROWN
WHITE
BLACK
BLUE
BLUE
RED
BLACK
PINK
TAN
RED/WHITE
RED/WHITE
GREEN
BLACK
PINK
GREEN
RED/YELLOW
GREEN
PINK
GRAY
YELLOW
BLACK
BLACK
PINK
WHITE
BLACK
YELLOW
ORANGE
TAN
GREEN
PINK
BLACK
GRAY
RED/YELLOW
RED
YELLOW
PINK
TAN
YELLOW
BROWN
WHITE
WHITE
BROWN
BROWN
YELLOW
GREEN
BROWN
WHITE
ProForce Debris Blower
Models 44538 and 44539 with Serial Number
Above 312000000
Electrical Schematic
All ground wires are black.
Page 7 -- 5
Rev. C
A
B
C
D
A
B
C
D
BLACK (GRD)
BROWN
PINK
6
7
8
9
GCU Power +12V
RX
GROUND
Speed Input
Shutdown
10
11
12
13
14
GOVERNOR
CONTROL
UNIT
(GCU)
(30 A)
ProForce Debris Blower
Serial Numbers Below 310000000
Engine Electrical Diagram
All ground wires are black.
Page 7 -- 6
Rev. C
RED
RED/YELLOW
WHITE
GREEN
DLA 1A (pin A DLA)
DLA 1B (pin D DLA)
GROUND
GRAY
1
2
3
4
5
RED/WHITE
DLA 2B (pin B DLA)
DLA 2A (pin C DLA)
TX
Diag Lamp Driver
RED
GRAY
RED/YELLOW
ORANGE
DIGITAL
LINEAR
ACTUATOR
(DLA)
MACHINE
WIRE
HARNESS
NOTE: THE OIL PRESSURE
SWITCH IS NORMALLY OPEN
AND CLOSES WHEN ENGINE
OIL PRESSURE EXISTS
A
B
A
B
C
D
C
D
BROWN
PINK
DLA 1A (pin A DLA)
DLA 1B (pin D DLA)
GROUND
GCU Power +12V
BLACK (GRD)
RX
GROUND
Speed Input
Shutdown
3
4
5
6
7
BLUE
1
2
GREEN
DLA 2A (pin C DLA)
TX
Diag Lamp Driver
RED
DLA 2B (pin B DLA)
RED/WHITE
GRAY
RED/YELLOW
ORANGE
DIGITAL
LINEAR
ACTUATOR
(DLA)
MACHINE
WIRE
HARNESS
6
5
4
3
2
1
6
5
4
3
2
1
8
9
10
11
12
13
14
RED
NOTE: THE OIL PRESSURE
SWITCH IS NORMALLY OPEN
AND CLOSES WHEN ENGINE
OIL PRESSURE EXISTS
RED/YELLOW
WHITE
GOVERNOR
CONTROL
UNIT
(GCU)
(30 A)
ProForce Debris Blower
Serial Numbers Above 310000000
Engine Electrical Diagram
All ground wires are black.
Page 7 -- 7
Rev. C
CONTROL MODULE
Model: 44538
Tested to Compl
y
With FCC Standar ds
FO R HOME OR O FFICE U S E
B+
START
BLUE
FUEL SOLENOID OUT (RED)
N 16 2 5
Canada
3575APFB1
Made in U.S .A.
RED/WHITE
FUEL SOLENOID (RED/WHITE)
RED
ENGINE KILL (WHITE)
RED
OIL PRESSURE SWITCH (GREEN)
RED/WHITE
GREEN
COIL POWER
GRAY
GREEN
RED/YELLOW
THROTTLE CONTROL
NO
LED’s
ILLUMINATED
GRAY
ENGINE
NOZZLE
BLUE
GREEN
GREEN
PINK
WHITE
IGNITION SWITCH
(ON ENGINE)
BLACK
OFF
GRAY
YELLOW/BLACK
RUN
START
RED/YELLOW
TURNED TO START
REMOTE TRANSMITTER
GREEN/BLACK
BLACK
GRAY
ORANGE/BLACK
NO
BUTTONS
PRESSED
GRAY
BLACK
RED
BATTERY
FUSIBLE
LINK
GRAY
INLINE FUSE (15A)
YELLOW
PINK
BLACK
ProForce Debris Blower
Control Module Wake Up
No Control Module LED’s Illuminated
No Remote Transmitter Buttons Pressed
Ignition Switch Turned to START
Power Current
Control Current
Indicator/Gauge Current
Page 7 -- 8
Rev. C
GREEN
NOTE: THE DRAWING ON THIS PAGE USES THE
ELECTRICAL SCHEMATIC FROM A MACHINE WITH
A SERIAL NUMBER BELOW 310000000 TO SHOW THE
OPERATIONAL CIRCUITS.
CONTROL MODULE
Model: 44538
Tested to Compl
y
With FCC Standar ds
FO R HOME OR O FFICE U S E
B+
START
N 16 2 5
BLUE
FUEL SOLENOID OUT (RED)
Canada
3575APFB1
RED/WHITE
FUEL SOLENOID (RED/WHITE)
LED’S
ILLUMINATED
RED
ENGINE KILL (WHITE)
RED
OIL PRESSURE SWITCH (GREEN)
RED/WHITE
GREEN
COIL POWER
GRAY
GREEN
RED/YELLOW
THROTTLE CONTROL
Made in U.S .A.
ON
ENERGIZED
GRAY
ENGINE
ON
NOZZLE
BLUE
GREEN
OFF
RUN
ON
GREEN
PINK
WHITE
BLACK
GRAY
YELLOW/BLACK
START
RED/YELLOW
REMOTE TRANSMITTER
IGNITION SWITCH
(ON ENGINE)
IN RUN POSITION
GREEN/BLACK
BLACK
GRAY
ORANGE/BLACK
ENGINE START
SEQUENCE
PRESSED
GRAY
BLACK
INLINE FUSE (15A)
RED
BATTERY
FUSIBLE
LINK
YELLOW
PINK
BLACK
GRAY
ProForce Debris Blower
Crank Circuits
ENERGIZED
Ignition Switch in RUN Position
Control Module LED’s Illuminated
NOTE: THE DRAWING ON THIS PAGE USES THE
ELECTRICAL SCHEMATIC FROM A MACHINE WITH
A SERIAL NUMBER BELOW 310000000 TO SHOW THE
OPERATIONAL CIRCUITS.
GREEN
Remote Transmitter ENGINE START Sequence Pressed
Power Current
Control Current
Indicator/Gauge Current
Page 7 -- 9
Rev. C
CONTROL MODULE
Model: 44538
Tested to Compl
y
With FCC Standar ds
FO R HOME OR O FFICE U S E
B+
START
N 16 2 5
BLUE
FUEL SOLENOID OUT (RED)
Canada
3575APFB1
RED/WHITE
FUEL SOLENOID (RED/WHITE)
LED’S
ILLUMINATED
RED
ENGINE KILL (WHITE)
RED
OIL PRESSURE SWITCH (GREEN)
RED/WHITE
GREEN
COIL POWER
GRAY
GREEN
RED/YELLOW
THROTTLE CONTROL
ON
ENERGIZED
GRAY
ENGINE
ON
NOZZLE
BLUE
GREEN
OFF
Made in U.S .A.
GREEN
PINK
WHITE
RUN
BLACK
GRAY
YELLOW/BLACK
START
RED/YELLOW
IGNITION SWITCH
(ON ENGINE)
IN RUN POSITION
REMOTE TRANSMITTER
GREEN/BLACK
BLACK
GRAY
ORANGE/BLACK
NO
BUTTONS
PRESSED
GRAY
BLACK
INLINE FUSE (15A)
RED
BATTERY
ProForce Debris Blower
Run Circuits
FUSIBLE
LINK
YELLOW
PINK
BLACK
GRAY
ENERGIZED
Ignition Switch in RUN Position and Engine Running
Control Module LED’s Illuminated
No Remote Transmitter Buttons Being Pressed
Power Current
Control Current
Indicator/Gauge Current
Page 7 -- 10
Rev. C
GREEN
NOTE: THE DRAWING ON THIS PAGE USES THE
ELECTRICAL SCHEMATIC FROM A MACHINE WITH
A SERIAL NUMBER BELOW 310000000 TO SHOW THE
OPERATIONAL CIRCUITS.
CONTROL MODULE
Model: 44538
ON
Tested to Compl
y
With FCC Standar ds
FO R HOME OR O FFICE U S E
B+
START
N 16 2 5
BLUE
FUEL SOLENOID OUT (RED)
Canada
3575APFB1
RED/WHITE
FUEL SOLENOID (RED/WHITE)
LED’S
ILLUMINATED
RED
ENGINE KILL (WHITE)
RED
OIL PRESSURE SWITCH (GREEN)
RED/WHITE
GREEN
COIL POWER
GRAY
GREEN
RED/YELLOW
THROTTLE CONTROL
ON
ENERGIZED
GRAY
ENGINE
ON
NOZZLE
BLUE
GREEN
OFF
Made in U.S .A.
RUN
ON
GREEN
PINK
WHITE
BLACK
GRAY
YELLOW/BLACK
START
RED/YELLOW
REMOTE TRANSMITTER
IGNITION SWITCH
(ON ENGINE)
IN RUN POSITION
GREEN/BLACK
PRESSED
BLACK
GRAY
ORANGE/BLACK
SPEED
INCREASE
BUTTON
PRESSED
GRAY
BLACK
INLINE FUSE (15A)
RED
BATTERY
FUSIBLE
LINK
YELLOW
PINK
BLACK
GRAY
ProForce Debris Blower
Engine Speed Increase Circuits
ENERGIZED
Ignition Switch in RUN Position and Engine Running
Control Module LED’s Illuminated
NOTE: THE DRAWING ON THIS PAGE USES THE
ELECTRICAL SCHEMATIC FROM A MACHINE WITH
A SERIAL NUMBER BELOW 310000000 TO SHOW THE
OPERATIONAL CIRCUITS.
GREEN
Remote Speed Increase Button Being Pressed
Power Current
Control Current
Indicator/Gauge Current
Page 7 -- 11
Rev. C
CONTROL MODULE
Model: 44538
Tested to Compl
y
With FCC Standar ds
FO R HOME OR O FFICE U S E
B+
START
N 16 2 5
BLUE
FUEL SOLENOID OUT (RED)
Canada
3575APFB1
ON
RED/WHITE
FUEL SOLENOID (RED/WHITE)
RED
ENGINE KILL (WHITE)
RED
OIL PRESSURE SWITCH (GREEN)
COIL POWER
GRAY
GREEN
RED/YELLOW
ON
ENERGIZED
GRAY
ENGINE
ON
NOZZLE
BLUE
GREEN
OFF
LED’S
ILLUMINATED
RED/WHITE
GREEN
THROTTLE CONTROL
Made in U.S .A.
RUN
ON
GREEN
PINK
WHITE
BLACK
GRAY
YELLOW/BLACK
START
RED/YELLOW
REMOTE TRANSMITTER
IGNITION SWITCH
(ON ENGINE)
IN RUN POSITION
GREEN/BLACK
PRESSED
BLACK
GRAY
ORANGE/BLACK
NOZZLE
ROTATE
BUTTON
PRESSED
GRAY
BLACK
INLINE FUSE (15A)
RED
BATTERY
ProForce Debris Blower
Nozzle Rotation Circuits
FUSIBLE
LINK
YELLOW
PINK
BLACK
GRAY
ENERGIZED
Ignition Switch in RUN Position and Engine Running
Control Module LED’s Illuminated
Remote Nozzle Rotate Button Pressed
Power Current
Control Current
Indicator/Gauge Current
Page 7 -- 12
Rev. C
GREEN
NOTE: THE DRAWING ON THIS PAGE USES THE
ELECTRICAL SCHEMATIC FROM A MACHINE WITH
A SERIAL NUMBER BELOW 310000000 TO SHOW THE
OPERATIONAL CIRCUITS.
This page is intentionally blank.
Page 7 -- 13
Rev. C
NOZZLE
ROTATION
MOTOR
ProForce Debris Blower
Model 44538 with Serial Number
Below 310000000
Wire Harness Drawing
Page 7 -- 14
Rev. C
BLUE
PINK
RED/WHITE
GRAY
RED
GREEN
GREEN
PINK
NOZZLE
ROTATION
MOTOR
GREEN
WHITE
BLACK
ORANGE/BLACK
GREEN/BLACK
RED/YELLOW
BLUE
BLUE
GREEN
PINK
BLACK
GRAY
WHITE
YELLOW/BLACK
RED
GRAY
PINK
BLACK
YELLOW
GRAY
GREEN
BLACK
ProForce Debris Blower
Model 44538 with Serial Number
Below 310000000
Wire Harness Diagram
Page 7 -- 15
Rev. C
ProForce Debris Blower
Models 44538 and 44539 with Serial Number
From 310000000 to 311999999
Model 44542 (all Serial Numbers)
Wire Harness Drawing
Page 7 -- 16
Rev. C
GRAY
GRAY
RED/WHITE
GREEN
GRAY
GREEN
WHITE
BLUE
BLACK
ORANGE/BLACK
GREEN/BLACK
RED/YELLOW
BLUE
GREEN
PINK
BLACK
GRAY
YELLOW/BLACK
BLUE
GRAY
RED
YELLOW
RED/WHITE
ProForce Debris Blower
Models 44538 and 44539 with Serial Number
From 310000000 to 311999999
Model 44542 (all Serial Numbers)
Wire Harness Diagram
Page 7 -- 17
Rev. C
ProForce Debris Blower
Models 44538 and 44539 with Serial Number
Above 312000000
Wire Harness Drawing
Page 7 -- 18
Rev. C
GREEN
WHITE
PINK
BLACK
BLACK
PINK
BLACK
BLACK
GRAY
PINK
RED/WHITE
BLACK
TAN
PINK
GREEN
GRAY
TAN
PINK
PINK
RED/YELLOW
YELLOW
ORANGE
GREEN
GRAY
PINK
TAN
BLACK
BLUE
RED/WHITE
RED
YELLOW
BLACK
ProForce Debris Blower
Models 44538 and 44539 with Serial Number
Above 312000000
Wire Harness Diagram
Page 7 -- 19
Rev. C
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