Scag Power Equipment Windstorm WS23-37BV-EFI User manual

OPERATOR’S
MANUAL
Part No. 03451
Printed 2/2019
Printed in USA
© 2019
Scag Power Equipment
Division of Metalcraft of Mayville, Inc.
Congratulations on owning a Scag Windstorm blower! This manual contains
the operating instructions and safety information for your Scag blower.
Reading this manual can provide you with assistance in maintenance
and adjustment procedures to keep your blower performing to maximum
efciency. The specic models that this book covers are listed on the
inside cover. Before operating your blower, please read all the information
enclosed.
Model: WS23-37BV-EFI

WARNING
FAILURE TO FOLLOW SAFE OPERATING PRACTICES MAY RESULT
IN SERIOUS INJURY OR DEATH.
• Read this manual completely as well as other manuals that came with your blower.
• ALWAYS FOLLOW OSHA APPROVED OPERATION.
• DO NOT operate on steep slopes.
• Under no circumstances should the machine be operated on slopes greater than 15
degrees.
• Stay two machine widths away from slopes, drop offs, ditches, and retaining walls.
• DO NOT back down a slope or ramp.
• DO NOT operate on wet grass. Wet grass reduces traction and steering control.
• Keep all shields in place.
• Before performing any maintenance or service, stop the machine and remove the
spark plug wire and ignition key.
• If a mechanism becomes clogged, stop the engine and wait for movement to stop
before cleaning.
• Keep hands, feet, and clothing away from power-driven parts.
• Keep others off the blower (only one person at a time)
REMEMBER - YOUR BLOWER IS ONLY AS SAFE AS THE OPERATOR!
HAZARD CONTROL AND ACCIDENT PREVENTION ARE DEPENDENT UPON THE AWARENESS,
CONCERN, PRUDENCE, AND PROPER TRAINING OF THE PERSONNEL INVOLVED IN THE
OPERATION, TRANSPORT, MAINTENANCE, AND STORAGE OF THE EQUIPMENT.
This manual covers the operating instructions and illustrated parts list for:
WS23-37BV-EFI with a serial number of P5900001 to P5999999
Always use the entire serial number listed on the serial number tag when referring to this product.

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Table of Contents
Table of Contents
SECTION 1 - GENERAL INFORMATION...................................................................................1
1.1 INTRODUCTION...........................................................................................................................................1
1.2 DIRECTION REFERENCE ...........................................................................................................................1
1.3 SERVICING THE ENGINE AND DRIVE TRAIN COMPONENTS.................................................................1
1.4 SYMBOLS ....................................................................................................................................................2
SECTION 2 - SAFETY INFORMATION ......................................................................................3
2.1 INTRODUCTION...........................................................................................................................................3
2.2 SIGNAL WORDS ..........................................................................................................................................3
2.3 BEFORE OPERATION CONSIDERATIONS................................................................................................3
2.4 TESTING THE SAFETY INTERLOCK SYSTEM..........................................................................................4
2.5 OPERATION CONSIDERATIONS................................................................................................................5
2.6 MAINTENANCE CONSIDERATIONS & STORAGE ....................................................................................7
2.7 USING A SPARK ARRESTOR.....................................................................................................................7
2.8 SPARK IGNITION SYSTEM .........................................................................................................................7
2.9 SAFETY AND INSTRUCTIONAL DECALS.................................................................................................8
SECTION 3 - SPECIFICATIONS ................................................................................................9
3.1 ENGINE ........................................................................................................................................................9
3.2 ELECTRICAL ...............................................................................................................................................9
3.3 ENGINE DECK .............................................................................................................................................9
3.4 BLOWER ....................................................................................................................................................10
3.5 WEIGHTS AND DIMENSIONS...................................................................................................................10
SECTION 4 - OPERATING INSTRUCTIONS ...........................................................................11
4.1 TIGER EYE INSTRUMENT IDENTIFICATION ...........................................................................................11
4.2 CONTROLS IDENTIFICATION ..................................................................................................................13
4.3 SAFETY INTERLOCK SYSTEM ................................................................................................................14
4.4 TESTING THE SAFETY INTERLOCK SYSTEM........................................................................................14
4.5 INITIAL RUN-IN PROCEDURES................................................................................................................14
4.6 STARTING THE ENGINE ...........................................................................................................................14
4.7 GROUND TRAVEL AND STEERING .........................................................................................................15
4.8 ENGAGING THE BLOWER DRIVE (BLOWER FAN).................................................................................16
4.9 HILLSIDE OPERATION..............................................................................................................................17
4.10 PARKING THE MACHINE ........................................................................................................................17
4.11 AFTER OPERATION ................................................................................................................................17
4.12 REMOVING CLOGGED MATERIAL ........................................................................................................18
4.13 MOVING MACHINE WITH ENGINE STOPPED .......................................................................................18
4.14 RECOMMENDATIONS FOR BLOWING ..................................................................................................18
4.15 ADJUSTING DISCHARGE NOZZLE .......................................................................................................18

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Table of Contents
SECTION 5 - ADJUSTMENTS .................................................................................................22
5.1 PARKING BRAKE ADJUSTMENT ............................................................................................................22
5.2 TRAVEL ADJUSTMENT.............................................................................................................................22
5.3 THROTTLE CONTROL AND CHOKE ADJUSTMENTS............................................................................24
5.4 BELT ADJUSTMENTS ...............................................................................................................................24
5.5 BELT ALIGNMENT.....................................................................................................................................24
5.6 ELECTRIC CLUTCH ADJUSTMENT.........................................................................................................24
5.7 OPERATOR CUSHION AND REAR COVER REMOVAL ..........................................................................25
SECTION 6 - MAINTENANCE..................................................................................................26
6.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS ......................................................26
6.2 LUBRICATION............................................................................................................................................27
6.3 HYDRAULIC SYSTEM ...............................................................................................................................29
6.4 ENGINE OIL ...............................................................................................................................................30
6.5 ENGINE FUEL SYSTEM ............................................................................................................................31
6.6 ENGINE AIR CLEANER.............................................................................................................................32
6.7 BATTERY - ELECTRIC START MODELS..................................................................................................32
6.8 DRIVE BELTS.............................................................................................................................................33
6.9 TIRES..........................................................................................................................................................34
6.10 BODY AND BLOWER ..............................................................................................................................34
6.11 BLOWER DRIVE GEARBOX ...................................................................................................................34
SECTION 7 - ILLUSTRATED PARTS LIST ..............................................................................35
SCAG APPROVED ATTACHMENTS AND ACCESSORIES............................................................................35
WS IMPELLER DRIVE ASSEMBLY.................................................................................................................36
WS IMPELLER ASSEMBLY.............................................................................................................................38
WS SHEET METAL ..........................................................................................................................................40
WS STEERING CONTROLS............................................................................................................................42
WS FUEL SYSTEM ..........................................................................................................................................44
WS HYDRAULICS AND ENGINE COMPONENTS..........................................................................................46
WS ELECTRICAL SYSTEM.............................................................................................................................48
WS NOZZLE ELECTRICAL SYSTEM .............................................................................................................50
WS HYDRAULIC PUMP...................................................................................................................................52
REPLACEMENT DECALS AND INFORMATION PLATES .............................................................................54
WS ELECTRICAL SCHEMATIC ......................................................................................................................56
WS NOZZLE CONTROL HARNESS................................................................................................................57
SOFT START....................................................................................................................................................58
ENGINE ADAPTER HARNESS .......................................................................................................................58
LIMITED WARRANTY - COMMERCIAL EQUIPMENT....................................... Back Cover

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Section 1
1.1 INTRODUCTION
Your blower was built to the highest standards in the
industry. However, the prolonged life and maximum
efficiency of your blower depends on you following the
operating, maintenance, and adjustment instructions in
this manual.
If additional information or service is needed, contact your
Scag Power Equipment Dealer.
We encourage you to contact your dealer for repairs.
All Scag dealers are informed of the latest methods to
service this equipment and provide prompt and efficient
service in the field or at their service shop. They carry a
full line of Scag service parts.
- IMPORTANT -
The replacement of any part on this product
by other than the manufacturer's authorized
replacement part may adversely affect the
performance, durability, or safety of this
product.
Use of other than original Scag replacement
parts will void the warranty.
When ordering parts, always give the model and serial
number of your product. The serial number plate is
located on the frame of the machine between the engine
and hydraulic pump where shown in Figure 1-1.
MODEL
SERIAL
Division of Metalcraft of Mayville, Inc.
Mayville, Wisconsin 53050
Patents Issued and Pending
SERIAL NUMBER
PLATE LOCATION
Figure 1-1. Serial Number Plate Location
GENERAL INFORMATION
USE ONLY SCAG APPROVED ATTACHMENTS AND
ACCESSORIES.
Attachments and accessories manufactured by
companies other than Scag Power Equipment are not
approved for use on this machine. See Section 7.
WARNING
For pictorial clarity, some illustrations and figures
in this manual may show shields, guards, or plates
open or removed. Under no circumstances should
your blower be operated without these devices
in place.
All information is based upon product information
available at the time of approval for printing. Scag Power
Equipment reserves the right to make changes at any
time without notice and without incurring any obligation.
1.2 DIRECTION REFERENCE
The “Right” and “Left”, “Front” and “Rear” of the machine
are referenced from the operator’s right and left when
in the normal operating position and facing the forward
travel direction.
1.3 SERVICING THE ENGINE AND DRIVE
TRAIN COMPONENTS
The detail servicing and repair of the engine and
transmission are not covered in this manual; only routine
maintenance and general service instructions are
provided. For service of these components during the
limited warranty period, it is important to contact your
Scag dealer or find a local authorized servicing agent
of the component manufacturer. Any unauthorized work
done on these components during the warranty period
may void your warranty.

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Section 1
1.4 SYMBOLS
SYMBOL DESCRIPTION SYMBOL DESCRIPTION
Choke Transmission
Parking Brake
48071S
Spinning Blade
On/Start Spring Tension on Idler
Off/Stop Oil
Falling Hazard Thrown Object Hazard
Fast Slow
Continuously Variable - Linear Blowing Element - Basic Symbol
481039S
Pinch Point CE Mark
Hour meter/Elapsed Operating Hours Keep Bystanders Away
Crush Hazard. Read Operator's Manual

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Section 2
2.1 INTRODUCTION
Your blower is only as safe as its operator. Carelessness
or operator error may result in serious bodily injury
or death. Hazard control and accident prevention are
dependent upon the awareness, concern, prudence, and
proper training of the personnel involved in the operation,
transport, maintenance, and storage of the equipment.
Make sure every operator is properly trained and thoroughly
familiar with all of the controls before operating.The owner/
user can prevent and is responsible for accidents or injuries
occurring to themselves, other people, or property.
READ THIS OPERATOR’S MANUAL BEFORE
ATTEMPTING TO START YOUR BLOWER.
A replacement manual is available from your authorized
Scag Service Dealer or by contacting Scag Power
Equipment, Service Department at P.O. Box 152, Mayville,
WI 53050 or contact us via the Internet at www.scag.com.
The manual for this machine can be downloaded by using
the model and serial number or use the contact form to
make your request. Please indicate the complete model
and serial number of your Scag product when requesting
replacement manuals.
2.2 SIGNAL WORDS
This symbol means “Attention! Become Alert! Your
Safety is Involved!" The symbol is used with the following
signal words to attract your attention to safety messages
found on the decals on the machine and throughout this
manual. The message that follows the symbol contains
important information about safety. To avoid injury and
possible death, carefully read the message! Be sure to fully
understand the causes of possible injury or death.
SIGNAL WORD:
It is a distinctive word found on the safety decals on the
machine and throughout this manual that alerts the viewer
to the existence and relative degree of the hazard.
DANGER
The signal word “DANGER” denotes that an extremely
hazardous situation exists on or near the machine that
could result in high probability of death or irreparable injury
if proper precautions are not taken.
WARNING
The signal word “WARNING” denotes that a hazard exists
on or near the machine that can result in injury or death if
proper precautions are not taken.
CAUTION
The signal word “CAUTION” is a reminder of safety practices
on or near the machine that could result in personal injury,
if proper precautions are not taken.
Your safety and the safety of others depends significantly
upon your knowledge and understanding of all correct
operating practices and procedures of this machine.
2.3 BEFORE OPERATION
CONSIDERATIONS
WARNING
Check all hydraulic connections for tightness.
Inspect all hydraulic hoses and / or lines to ensure
they are in good condition before operating.
1. NEVER allow children to operate this blower. Do not
allow adults to operate this machine without proper
instructions.
2. Do not operate when children and/or others are
present. Keep children out of the work area and in
the watchful care of a responsible adult other than
the operator. Be alert and turn machine off if a child
enters the area.
SAFETY INFORMATION

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Section 2
3. DO NOT allow children to ride or play on the
machine, it is not a toy.
4. Clear the area of large foreign objects that could be
picked up and thrown by the blower fan.
5. DO NOT direct the discharge nozzle toward
bystanders, buildings, or any area that may cause
harm to yourself or others.
6. Plan a clearing route, avoid tight areas that may
cause debris to be blown back at the operator.
7. DO NOT carry passengers.
8. DO NOT operate the machine under the influence of
alcohol or drugs.
9. If the operator(s) or mechanic(s) cannot read
English, it is the owner's responsibility to explain this
material to them.
10. DO NOT wear loose fitting clothing. Loose clothing,
jewelry, or long hair could get tangled in moving
parts. Do not operate the machine wearing shorts;
always wear adequate protective clothing including
long pants. Wearing safety glasses, safety shoes,
and a helmet is advisable and is required by some
local ordinances and insurance regulations.
WARNING
Always wear hearing protection. Operating this
machine over prolonged periods of time can
cause loss of hearing.
11. Keep the machine and attachments in good
operating condition. Keep all shields and safety
devices in place. If a shield, safety device, or decal
is defective or damaged, repair or replace it before
operating the machine.
12. Fuel is flammable; handle it with care. Fill the fuel
tank outdoors. Never fill it indoors. Use a funnel or
spout to prevent spillage. Clean up any spillage
before starting the engine.
13. DO NOT add fuel to a running or hot engine. Allow
the engine to cool for several minutes before adding
fuel. Never fuel indoors or inside enclosed trailers.
14. Keep flammable objects (cigarettes, matches, etc.),
open flames, and sparks away from the fuel tank and
fuel container. Use only approved containers.
15. Equipment must comply with the latest requirements
per SAE J137 and/or ANSI/ASAE S279 when driven
on public roads.
16. Do not operate without the nozzle completely
installed.
17. Check the blower fan mounting bolts at frequent
intervals for proper tightness.
18. Make sure all hydraulic fluid connections are tight
and all hydraulic hoses and lines are in good
condition before starting the machine.
19. Be sure the interlock switches are functioning
correctly.
WARNING
This machine is equipped with an interlock system
intended to protect the operator and others from
injury. This is accomplished by preventing the
engine from starting unless the blower fan is
disengaged, the parking brake is engaged, the
steering control levers are in the neutral position,
and the operator is in the operator's position.
The interlock system shuts off the engine if the
operator leaves the operator platform with the
steering control levers not in the neutral position
and/or the fan engaged and the parking brake not
engaged.
2.4 TESTING THE SAFETY INTERLOCK
SYSTEM
The safety interlock system should be tested each time
before using the machine. If the safety interlock system
does not operate as described below, contact your local
Authorized Scag Power Equipment Dealer immediately to
have the safety interlock system repaired.
1. Stand on the operator platform in the operating
position, place the steering control levers in the
neutral position, engage the parking brake, and
engage the PTO switch to the ON (up) position. Try
to start the engine; the engine should not start.
2. Stand on the operator platform in the operating
position, place the steering control levers in the
neutral position, disengage the parking brake, and
move the PTO switch to the OFF (down) position. Try
to start the engine; the engine should not start.

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Section 2
3. Stand on the operator platform in the operating
position, place the steering control levers in the
neutral position, engage the parking brake, move the
PTO switch to the OFF (down) position, and start the
engine. With the engine running, engage the PTO
switch to the ON (up) position, and step backwards
off of the operating platform. The engine should shut
off.
4. Stand on the operator platform in the operating
position, place the steering control levers in the
neutral position, engage the parking brake, move the
PTO switch to the OFF (down) position, and start the
engine. With the engine running, release the parking
brake, and step backwards off of the operating
platform. The engine should shut off.
2.5 OPERATION CONSIDERATIONS
1. Know the function of all controls and how to stop
quickly.
WARNING
DO NOT operate on steep slopes. Under no
circumstances should the machine be operated
on slopes greater than 15 degrees. See Figure
2-1 to determine approximate slope of area to
be blown. ALWAYS FOLLOW OSHA APPROVED
OPERATION.
2. Reduce speed and exercise extreme caution on
slopes and in sharp turns to prevent tipping or loss
of control. Be especially cautious when changing
directions on slopes.
3. Stay two machine widths away from slopes, drop
offs, ditches, and retaining walls.
4. To prevent tipping or loss of control, start and stop
smoothly, avoid unnecessary turns, and travel at
reduced speed.
5
o
10
o
15
o
20
o
Figure 2-1. Slope Angle Graph
5. Immediately apply the parking brake if you lose
steering control while operating. Inspect the machine
and correct the problem before continuing to operate.
6. When using the machine, never direct the blown
material toward bystanders or allow anyone near the
machine while in operation.
7. Start the engine with the operator in the operating
position, the blower fan disengaged, the parking
brake engaged, and the neutral levers in the neutral
position.
8. If the blower intake ever plugs, shut off the engine,
remove the ignition key, and wait for all movement to
stop before removing the obstruction.
WARNING
DO NOT use your hand to dislodge the clogged
material. Use a stick or other device to remove
clogged material after the engine has stopped
running and the blower fan has stopped turning.
9. Be alert for holes, rocks, roots, and other hidden
hazards in the terrain. Keep away from any drop offs.
Beware of overhead obstructions (low limbs, etc.)
and underground obstacles (sprinklers, pipes, tree
roots, etc.). Cautiously enter a new area. Be alert for
hidden hazards.
10. Disengage power to blower fan before backing up.
Do not blow material in reverse unless absolutely
necessary; and then, only after observation of the
entire area behind the blower. If you must blow
material in reverse, maintain a constant lookout to
the rear of the machine and blow slowly.
11. DO NOT turn sharply. Use care when backing up.
12. DO NOT direct the discharge nozzle toward
bystanders, buildings, or any area that may cause
harm to yourself or others.
13. Always be alert of the direction of the debris, make
sure it will not be blown in a direction that may harm
an individual or cause property damage.
14. DO NOT blow into tight spaces, this may cause
debris to be blown off objects/walls and back at the
operator.
15. Only use in daylight or good artificial light.

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Section 2
16. Take all possible precautions when leaving the
machine unattended, such as disengaging the
blower fan, stopping the engine, and removing the
key.
17. Disengage power to the attachments when
transporting or when not in use.
18. The machine and attachments should be stopped
and inspected for damage after striking a foreign
object, and damage should be repaired before
restarting and operating the machine.
CAUTION
Do not touch the engine or the muffler while the
engine is running or immediately after stopping.
These areas may be hot enough to cause a burn.
DANGER
DO NOT run the engine inside a building or
a confined area without proper ventilation.
Exhaust fumes are hazardous and contain carbon
monoxide which can cause brain injury and death.
19. Keep hands and feet away from the blower fan and
moving parts. Contact can cause injury.
20. Transport the machine using a heavy duty trailer
or truck. Ensure the trailer or truck has all of the
necessary lighting and markings as required by
laws, codes, and ordinances. Secure a trailer with a
safety chain.
21. When transporting the machine to and from the job
site or loading/unloading the machine, make sure the
nozzle is pointed as far left and in its highest position
to avoid damage to the nozzle. See Figure 2-2
22. Be cautious when loading and unloading onto
trailers or trucks. Use only a full width ramp. Always
back on and drive off a trailer.
23. When transporting the machine, make sure the
neutral lock lever is in the neutral lock position, the
engine is off with the key removed, the parking brake
is engaged, and the wheels have been blocked.
Figure 2-2. Nozzle In Transport Position
24. Use care when approaching blind corners, shrubs,
trees, or other objects that may obscure vision.
25. NEVER leave the machine running unattended.
26. Tie the machine down securely using the tie down
points located on the front and rear of the machine.
See Figure 2-3 and 2-4. Secure using straps, chains,
cables, or ropes. Both front and rear straps must be
directed down and outward from the machine.
TIE DOWN
POINT
TIE DOWN
POINT
Figure 2-3. Front Tie Down Points
TIE DOWN
POINT
TIE DOWN
POINT
Figure 2-4. Rear Tie Down Points