Scag Power Equipment CHEETAH II User manual

PART NO. 03457
PRINTED 10/2019
PRINTED IN USA
© 2020
Scag Power Equipment
Division of Metalcraft of Mayville, Inc.
Congratulations on owning a Scag mower! This manual contains the operating
instructions and safety information for your Scag mower. Reading this manual
can provide you with assistance in maintenance and adjustment procedures to
keep your mower performing to maximum efciency. The specic models that
this book covers are listed on the inside cover. Before operating your machine,
please read all the information enclosed.
OPERATOR’S
MANUAL
Models: SCZII-61V-31FX
SCZII-61V-37BV-EFI
SCZII-61RD-31FX
SCZII-72V-31FX
SCZII-72V-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 mower.
• DO NOT operate on steep slopes. To check a slope, attempt to back up it (with the
cutter deck down). If the machine can back up the slope without the wheels slipping,
reduce speed and use extreme caution.
• Under no circumstances should the machine be operated on slopes greater than 15
degrees. ALWAYS FOLLOW OSHA APPROVED OPERATION.
• Stay two cut widths away from slopes, drop offs, ditches and retaining walls.
• DO NOT mow on wet grass. Wet grass reduces traction and steering control.
• Keep all shields in place, especially the grass discharge chute.
• 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 before cleaning.
• Keep hands, feet and clothing away from power-driven parts.
• Keep others off the mower (only one person at a time)
REMEMBER - YOUR MOWER 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:
SCZII-61V-31FX with a serial number of P9400001 to P9499999
SCZII-61V-37BV-EFI with a serial number of P9500001 to P9599999
SCZII-61RD-31FX with a serial number of P9600001 to P9699999
SCZII-72V-31FX with a serial number of P9700001 to P9799999
SCZII-72V-37BV-EFI with a serial number of P9800001 to P9899999
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 ROLL-OVER PROTECTION SYSTEM .........................................................................................................6
2.7 MAINTENANCE CONSIDERATIONS & STORAGE ....................................................................................8
2.8 USING A SPARK ARRESTOR.....................................................................................................................9
2.9 SPARK IGNITION SYSTEM .........................................................................................................................9
2.10 SAFETY AND INSTRUCTIONAL DECALS.............................................................................................10
SECTION 3 - SPECIFICATIONS ..............................................................................................11
3.1 ENGINE ......................................................................................................................................................11
3.2 ELECTRICAL .............................................................................................................................................11
3.3 POWER HEAD ...........................................................................................................................................11
3.4 CUTTER DECK ..........................................................................................................................................12
3.5 HYDRAULIC SYSTEM ...............................................................................................................................12
3.6 WEIGHTS AND DIMENSIONS ...................................................................................................................12
3.7 PRODUCTIVITY .........................................................................................................................................13
SECTION 4 - OPERATING INSTRUCTIONS ...........................................................................14
4.1 TIGER EYE INSTRUMENT IDENTIFICATION ...........................................................................................14
4.2 CONTROLS IDENTIFICATION ..................................................................................................................16
4.3 SAFETY INTERLOCK SYSTEM ................................................................................................................17
4.4 TESTING THE SAFETY INTERLOCK SYSTEM ........................................................................................17
4.5 INITIAL RUN-IN PROCEDURES................................................................................................................17
4.6 STARTING THE ENGINE ...........................................................................................................................17
4.7 GROUND TRAVEL AND STEERING .........................................................................................................18
4.8 ENGAGING THE DECK DRIVE (CUTTER BLADES)................................................................................19
4.9 HILLSIDE OPERATION..............................................................................................................................19
4.10 PARKING THE MOWER ...........................................................................................................................20
4.11 AFTER OPERATION ................................................................................................................................20
4.12 REMOVING CLOGGED MATERIAL ........................................................................................................20
4.13 MOVING MOWER WITH ENGINE STOPPED ..........................................................................................20
4.14 RECOMMENDATIONS FOR MOWING ....................................................................................................21

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Table of Contents
4.15 ADJUSTING CUTTING HEIGHT..............................................................................................................21
4.16 ADJUSTING THE HEIGHT ADJUST PEDAL ..........................................................................................22
4.17 ADJUSTING THE STEERING LEVERS...................................................................................................22
4.18 SETTING THE SPEED CONTROL...........................................................................................................22
4.19 ADJUSTING THE OPERATOR SUSPENSION PLATFORM ...................................................................23
4.20 TOWING (OPTIONAL HITCH ACCESSORY)...........................................................................................23
SECTION 5 - TROUBLESHOOTING CUTTING CONDITIONS ...............................................24
SECTION 6 - ADJUSTMENTS .................................................................................................27
6.1 PARKING BRAKE ADJUSTMENT ............................................................................................................27
6.2 TRAVEL ADJUSTMENTS ..........................................................................................................................27
6.3 LOW / HIGH SPEED ADJUSTMENT .........................................................................................................29
6.4 THROTTLE CONTROL AND CHOKE ADJUSTMENTS ............................................................................29
6.5 BELT ADJUSTMENT .................................................................................................................................29
6.6 BELT ALIGNMENT.....................................................................................................................................29
6.7 CUTTER DECK ADJUSTMENTS ..............................................................................................................29
6.8 CUSTOM-CUT BAFFLE ADJUSTMENT (EXCLUDES REAR DISCHARGE)...........................................31
6.9 ADJUSTING THE STEERING DAMPNERS...............................................................................................33
6.10 ELECTRIC CLUTCH ADJUSTMENT.......................................................................................................33
SECTION 7 - MAINTENANCE..................................................................................................34
7.1 MAINTENANCE CHART - RECOMMENDED SERVICE INTERVALS ......................................................34
7.2 LUBRICATION............................................................................................................................................35
7.3 HYDRAULIC SYSTEM ...............................................................................................................................37
7.4 ENGINE OIL ...............................................................................................................................................38
7.5 ENGINE FUEL SYSTEM ............................................................................................................................39
7.6 ENGINE AIR CLEANER.............................................................................................................................40
7.7 BATTERY....................................................................................................................................................40
7.8 DRIVE BELTS.............................................................................................................................................41
7.9 CUTTER BLADES......................................................................................................................................42
7.10 TIRES........................................................................................................................................................43
7.11 BODY, DECK, AND UPHOLSTERY .........................................................................................................43
SECTION 8 - ILLUSTRATED PARTS LIST ..............................................................................44
8.1 SCAG APPROVED ATTACHMENTS AND ACCESSORIES......................................................................44
61V & 72V CUTTER DECKS ...........................................................................................................................46
61RD CUTTER DECK ......................................................................................................................................48
CUTTER DECK CONTROLS ...........................................................................................................................50
SHEET METAL COMPONENTS ......................................................................................................................52
SCZII ROLL-OVER PROTECTION SYSTEM...................................................................................................54
SCZII SEAT ASSEMBLY ..................................................................................................................................56
SCZII SUSPENSION SYSTEM ........................................................................................................................58

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Table of Contents
SCZII STEERING COMPONENTS...................................................................................................................60
SCZII DRIVE SYSTEM COMPONENTS ..........................................................................................................62
SCZII SPEED CONTROL COMPONENTS ......................................................................................................64
SCZII BRAKE COMPONENTS ........................................................................................................................66
SCZII HYDRAULIC SYSTEM ...........................................................................................................................68
SCZII FUEL SYSTEM.......................................................................................................................................70
SCZII ENGINE & ATTACHING PARTS ............................................................................................................72
ZT-5400 TRANSAXLE ASSEMBLY..................................................................................................................74
SCZII ELECTRICAL SYSTEM .........................................................................................................................76
SCZII EFI ELECTRICAL SYSTEM...................................................................................................................78
REPLACEMENT DECALS AND INFORMATION PLATES .............................................................................80
SCZII ELECTRICAL SCHEMATIC ...................................................................................................................82
SCZII EFI ELECTRICAL SCHEMATIC ............................................................................................................83
KAWASAKI ENGINE ADAPTER HARNESS ELECTRICAL SCHEMATIC .....................................................84
BRIGGS & STRATTON - EFI ADAPTER HARNESS ELECTRICAL SCHEMATIC.........................................84
LIMITED WARRANTY - COMMERCIAL EQUIPMENT............................Inside Back Cover

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Table of Contents
NOTES

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Section 1
1.1 INTRODUCTION
Your mower was built to the highest standards in the
industry. However, the prolonged life and maximum
efficiency of your mower 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 mower. The serial number plate is located
on the frame between the engine and seat where shown
in Figure 1-1.
R
Divisionof Metalcraft of Mayville, Inc.
Mayville,Wisconsin 53050
PatentsIssued and Pending
SERIAL NUMBER
PLATE LOCATION
Figure 1-1. Mower Serial Number Plate Location
USE ONLY SCAG APPROVED ATTACHMENTS AND
ACCESSORIES.
GENERAL INFORMATION
Attachments and accessories manufactured by companies
other than Scag Power Equipment are not approved for
use on this machine. See Section 8-1.
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 mower 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
seated in the normal operating position and facing the
forward travel direction.
1.3 SERVICING THE ENGINE AND DRIVE
TRAIN COMPONENTS
Details regarding the service and repair of the engine,
hydraulic pumps and gearboxes 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 Cutting Element - Basic Symbol
481039S
Pinch Point Cutting Element - Engage
Hour meter/Elapsed Operating Hours Cutting Element - Disengage
Keep Bystanders Away Read Operator's Manual

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Section 2
2.1 INTRODUCTION
Your mower is only as safe as the 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 mower. The owner/user can prevent and is responsible
for accidents or injuries occurring to themselves, other
people or property.
READ THIS OPERATOR’S MANUAL AND WATCH THE
TIPS FOR SAFE OPERATION OF YOUR SCAG ZERO-
TURN MOWER VIDEO BEFORE ATTEMPTING TO
START YOUR MOWER.
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 insure
they are in good condition before operating.
1. NEVER allow children to operate this riding mower.
Do not allow adults to operate this machine without
proper instructions.
2. Do not mow when children and/or others are
present. Keep children out of the mowing 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 to be mowed of objects that could be
picked up and thrown by the cutter blades.
5. DO NOT carry passengers.
6. DO NOT operate the machine under the influence of
alcohol or drugs.
7. If the operator(s) or mechanic(s) cannot read
English, it is the owner's responsibility to explain this
material to them.
8. 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.
9. 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.
10. 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.
11. 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.
12. See Section 7.5 ENGINE FUEL SYSTEM for fueling
procedure.
13. Keep flammable objects (cigarettes, matches, etc.),
open flames and sparks away from the fuel tank and
fuel container. Use only approved containers.
14. Equipment must comply with the latest requirements
per SAE J137 and/or ANSI/ASAE S279 when driven
on public roads.
- NOTE -
If the mower is driven on public roads, it must
comply with state and local ordinances as well as
SAE J137 and/or ANSI / ASAE S279 requirements.
Contact your local authorities for regulations and
equipment requirements.
15. Do not operate without the side discharge chute
installed and in the down position or with an optional
grass catcher or mulch plate completely installed.
16. Check the blade mounting bolts at frequent intervals
for proper tightness.
17. Make sure all hydraulic fluid connections are tight
and all hydraulic hoses and lines are in good
condition before starting the machine.
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 deck drive is
disengaged, the parking brake is on, the steering
control levers are in the neutral position and the
operator is in the seat. The system shuts off the
engine if the operator leaves the seat with the deck
drive engaged and/or the steering control levers
are not in the neutral position and the parking
brake is not engaged. Never operate equipment
with the interlock system disconnected or
malfunctioning.
18. Be sure the interlock switches are functioning
correctly.
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. Sit in the seat in the operating position, engage the
parking brake, place the steering control levers in
the neutral lock position, and engage the PTO switch
to the ON (up) position. Try to start the engine; the
engine should not start.