Scag SWZ-21KAE, SWZ52V-17KAI, SWZ36A-17KAI, SWZ52V-19KAI, SWZ36A-16KAI User Manual

OPERATOR’S
MANUAL

SWZ

Walk-Behind

Model: SWZ36A-16KAI
SWZ36A-17KAI
SWZ48V-17KAI
SWZ52V-17KAI
SWZ52V-19KAI

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.

© 2009
Scag Power Equipment
Division of Metalcraft of Mayville, Inc.

SWZ-19KAI
SWZ-21KAE

PART NO. 03226 Rev. 2

PRINTED 1/2009

PRINTED IN USA

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.•
ALWAYS FOLLOW OSHA APPROVED OPERATION.•
DO NOT operate on steep slopes. •
Always travel across slopes.•
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 mow• er (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:

SWz36A-16KAI with a serial number of D4500001 to D4599999
SWz36A-17KAI with a serial number of E6100001 to E6199999

SWz48v-17KAI with a serial number of D4600001 to D4699999
SWz52v-17KAI with a serial number of D4700001 to D4799999
SWz52v-19KAI with a serial number of D4800001 to D4899999

SWz-19KAI with a serial number of D5100001 to D5199999

SWz-21KAE with a serial number of D5200001 to D5299999

SWM-52v with a serial number of D5400001 to D5499999
SWM-61v with a serial number of D5500001 to D5599999

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

GENERAL INFORMATIONSECTION 1 - ...................................................................................1

1.1 INTRODUCTION ...........................................................................................................................................1

1.2 DIRECTION REFERENCE ...........................................................................................................................1

1.3 SERvICING THE ENGINE AND DRIvE TRAIN COMPONENTS .................................................................1

1.4 SYMBOLS ....................................................................................................................................................2

SAFETY INFORMATIONSECTION 2 - ......................................................................................3

2.1 INTRODUCTION ...........................................................................................................................................3

2.2 SIGNAL WORDS ..........................................................................................................................................3

2.3 BEFORE OPERATION CONSIDERATIONS ................................................................................................3

2.4 OPERATION CONSIDERATIONS ................................................................................................................4

2.5 MAINTENANCE CONSIDERATIONS & STORAGE ....................................................................................5

2.6 USING A SPARK ARRESTOR .....................................................................................................................6

2.7 SAFETY AND INSTRUCTIONAL DECALS

SPECIFICATIONSSECTION 3 - ................................................................................................8

3.1 ENGINE ........................................................................................................................................................8

3.2 ELECTRICAL ...............................................................................................................................................8

3.3 ENGINE DECK .............................................................................................................................................8

3.4 CUTTER DECK ............................................................................................................................................9

3.5 WEIGHTS AND DIMENSIONS .....................................................................................................................9

3.6 PRODUCTIvITY ...........................................................................................................................................9

.................................................................................................7

OPERATING INSTRUCTIONSSECTION 4 - ...........................................................................10

4.1 CONTROLS AND INSTRUMENT IDENTIFICATION ................................................................................10

4.2 SAFETY INTERLOCK SYSTEM ................................................................................................................11

4.3 INITIAL RUN-IN PROCEDURES ................................................................................................................11

4.4 STARTING THE ENGINE ...........................................................................................................................11

4.5 GROUND TRAvEL AND STEERING .........................................................................................................11

4.6 ENGAGING THE DECK DRIvE (CUTTER BLADES) ................................................................................12

4.7 HILLSIDE OPERATION ..............................................................................................................................13

4.8 PARKING THE MOWER .............................................................................................................................13

4.9 AFTER OPERATION ..................................................................................................................................13

4.10 REMOvING CLOGGED MATERIAL ........................................................................................................13

4.11 MOvING MOWER WITH ENGINE STOPPED ..........................................................................................14

4.12 RECOMMENDATIONS FOR MOWING ....................................................................................................14

TROUBLESHOOTING CUTTING CONDITIONSSECTION 5 - ...............................................15

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Table of Contents

ADJUSTMENTSSECTION 6 - .................................................................................................18

6.1 PARKING BRAKE ADJUSTMENT ............................................................................................................18

6.2 NEUTRAL ADJUSTMENT .........................................................................................................................18

6.3 STEERING CONTROL ROD ADJUSTMENTS ..........................................................................................18

6.4 TRACKING ADJUSTMENT ........................................................................................................................19

6.5 THROTTLE CONTROL AND CHOKE ADJUSTMENTS ............................................................................19

6.6 CUTTER DECK BELT ADJUSTMENTS ....................................................................................................19

6.7 BELT ALIGNMENT .....................................................................................................................................20

6.8 ADJUSTING CUTTING HEIGHT ................................................................................................................20

6.9 ELECTRIC CLUTCH ADJUSTMENT .........................................................................................................23

MAINTENANCESECTION 7 - ..................................................................................................24

7.1 MAINTENANCE CHART - RECOMMENDED SERvICE INTERvALS ......................................................24

7.2 LUBRICATION ............................................................................................................................................25

7.3 HYDRAULIC SYSTEM ...............................................................................................................................27

7.4 ENGINE OIL ...............................................................................................................................................28

7.5 ENGINE FUEL SYSTEM ............................................................................................................................28

7.6 ENGINE AIR CLEANER .............................................................................................................................29

7.7 BATTERY - ELECTRIC START MODELS..................................................................................................29

7.8 CUTTER BLADES ......................................................................................................................................30

7.9 TIRES ..........................................................................................................................................................31

ILLUSTRATED PARTS LISTSECTION 8 - ..............................................................................32

8.1 SCAG APPROvED ATTACHMENTS AND ACCESSORIES. .....................................................................32

CASTER ASSEMBLY .......................................................................................................................................33

36A CUTTER DECK .........................................................................................................................................34

48v & 52v CUTTER DECKS ...........................................................................................................................36

61v CUTTER DECK .........................................................................................................................................38

ENGINE DECK - MANUAL START ..................................................................................................................40

ENGINE DECK - ELECTRIC START ...............................................................................................................42

DRIvE AND BRAKE COMPONENTS ..............................................................................................................44

HANDLE ASSEMBLY - 16" SMALL FRAME ..................................................................................................46

HANDLE ASSEMBLY - 20" LARGE FRAME ..................................................................................................48

HYDRAULIC ASSEMBLY.................................................................................................................................50

HYDRAULIC PUMP ASSEMBLY .....................................................................................................................52

WIRE HARNESSES .........................................................................................................................................54

WIRE HARNESSES .........................................................................................................................................55

WIRE HARNESSES .........................................................................................................................................56

REPLACEMENT DECALS AND INFORMATION PLATES .............................................................................57

LIMITED WARRANTY - COMMERCIAL EqUIPMENT .........................Following Section 8

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Section 1

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MODEL

SERIAL

Division of Metalcraft of Mayville, Inc.

Mayville, Wisconsin 53050
Patents Issued and Pending

SERIAL NUMBER
PLATE LOCATION

GENERAL INFORMATION

INTRODUCTION1.1

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 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 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.

DIRECTION REFERENCE1.2

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 of the machine between the engine and
transmission were shown in Figure 1-1.

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.

SERvICING THE ENGINE AND DRIvE 1.3

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.

Mower Serial Number Plate LocationFigure 1-1.

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SYMBOLS1.4

48071S

481039S

SYMBOL DESCRIPTION SYMBOL DESCRIPTION

Choke

Transmission

Section 1

Parking Brake

On/Start

Off/Stop

Falling Hazard

Fast

Continuously Variable - Linear

Spinning Blade

Spring Tension on Idler

Oil

Thrown Object Hazard

Slow

Cutting Element - Basic Symbol

Pinch Point

Hour meter/Elapsed Operating Hours

STT MODELS

Cutting Element - Engage

Cutting Element - Disengage

CE Mark

Seat must be installed under the seat
hold down bracket during installation.
Failure to secure the seat under the hold
down bracket could result in serious
injury or death in a roll over.

Thrown Object Hazard

Read Operator's Manual

Keep Bystanders Away

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Section 2

SAFETY INFORMATION

INTRODUCTION2.1

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 stor age 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 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.

SIGNAL WORDS2.2

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 “CA UTION” 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.

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.

BEFORE OPERATION 2.3

CONSIDERATIONS

NEVER allow children to operate this mower. Do not 1.
allow adults to operate this machine without proper
instructions.

Do not mow when children and/or others are 2.
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.

DO NOT allow children to ride or play on the 3.
machine, it is not a toy.

Clear the area to be mowed of objects that could be 4.
picked up and thrown by the cutter blades.

DO NOT carry passengers.5.
DO NOT operate the machine under the influence of 6.

alcohol or drugs.

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Section 2

If the operator(s) or mechanic(s) cannot read English 7.
or Spanish, it is the owner's responsibility to explain
this material to them.

DO NOT wear loose fitting clothing. Loose clothing,

8.
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.

Keep the machine and attachments in good 9.
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.

Keep flammable objects (cigarettes, matches, etc.),

13.
open flames and sparks away from the fuel tank and
fuel container. Use only approved containers.

Equipment must comply with the latest requirements 14.
per SAE J137 and/or ANSI/ASAE S279 when driven
on public roads.

Do not operate without the side discharge chute 15.
installed and in the down position or with an optional
grass catcher or mulch plate completely installed.

Check the blade mounting bolts at frequent intervals 16.
for proper tightness.

OPERATION CONSIDERATIONS2.4

Know the function of all controls and how to stop 1.
quickly.

WARNING

DO NOT operate on steep slopes. ALWAYS
FOLLOW OSHA APPROvED OPERATION.

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 and the transmission is in neutral.
The system shuts off the engine if the operator
releases the operator pressence levers with the
deck drive engaged and/or the transmission
is not in neutral. Never operate equipment
with the interlock system disconnected or
malfunctioning.

Be sure the interlock switches are functioning

10.
correctly.

Fuel is flammable; handle it with care. Fill the fuel 11.
tank outdoors. Never fill it indoors. Use a funnel or
spout to prevent spillage. Clean up any spillage
before starting the engine.

DO NOT add fuel to a running or hot engine. Allow 12.
the engine to cool for several minutes before adding
fuel. Never fuel indoors or inside enclosed trailers.

Reduce speed and exercise extreme caution on 2.
slopes and in sharp turns to prevent tipping or loss
of control. Be especially cautious when changing
directions on slopes.

To prevent tipping or loss of control, start and stop 3.
smoothly, avoid unnecessary turns and travel at
reduced speed.

When using any attachment, never direct the 4.
discharge of material toward bystanders or allow
anyone near the machine while in operation.

Start the engine when the neutral latches are in 5.
the neutral lock position, the cutter blades are
disengaged, parking brake is engaged and the
speed control lever is in neutral.

If the mower discharge ever plugs, shut off the 6.
engine, remove the ignition key, and wait for all
movement to stop before removing the obstruction.

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Section 2

WARNING

DO NOT use your hand to dislodge the clogged
discharge chute. Use a stick or other device to
remove clogged material after the engine has
stopped running and the blades have stopped
turning.

Be alert for holes, rocks, roots and other hidden 7.
hazards in the terrain. Keep away from any drop­offs. Beware of overhead obstructions (low limbs,
etc.), underground obstacles (sprinklers, pipes, tree
roots, etc.). Cautiously enter a new area. Be alert for
hidden hazards.

Disengage power to cutter deck before backing up. 8.
Do not mow in reverse unless absolutely necessary
and then only after observation of the entire area
behind the mower. If you must mow in reverse,
maintain a constant lookout to the rear of the
machine and mow slowly.

DO NOT turn sharply. Use care when backing up.9.
Disengage power to cutter deck before crossing 10.

roads, walks or gravel drives.
Mow only in daylight or good artificial light.11.
NEVER raise the deck with the blades engaged.12.
Take all possible precautions when leaving the 13.

machine unattended, such as disengaging the
mower, stopping the engine, and removing the key.

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.

Keep hands and feet away from cutter blades and 16.
moving parts. Contact can injure.

Transport the mower using a heavy duty trailer 17.
or truck. Insure 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.

Be cautious when loading and unloading onto 18.
trailers or trucks. Use only a full width ramp.

When transporting the mower, make sure the speed 19.
control lever is in neutral, the neutral latches are in
the neutral lock position, the engine is off with the
key removed, the parking brake is engaged and the
wheels have been blocked.

Tie the mower down securely using straps, chains, 20.
cable, or ropes. Both front and rear straps must be
directed down and outward from machine.

Use care when approaching blind corners, shrubs, 21.
trees, or other objects that may obscure vision.

NEVER leave the machine running unattended.22.

Disengage power to the attachments when 14.
transporting or when not in use.

The machine and attachments should be stopped 15.
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.

MAINTENANCE CONSIDERATIONS & 2.5

STORAGE

Never make adjustments to the machine with the 1.
engine running unless specifically instructed to do
so. If the engine is running, keep hands, feet, and
clothing away from moving parts.

Place the speed control lever in neutral, engage the 2.
parking brake, neutral latches in the neutral lock
position, stop engine and remove key or disconnect
spark plug wire to prevent accidental starting of the
engine when servicing or adjusting the machine.
Wait for all movement to stop before adjusting,
cleaning or repairing.

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Remove spark plug wire before making any repairs. 3.
Keep all nuts, bolts and screws tight, to ensure the 4.

machine is in safe working condition. Check blade
mounting bolts frequently to be sure they are tight.

5.

Do not change the engine governor settings or
overspeed the engine. See the engine operator's
manual for information on engine settings.

To reduce fire hazard, keep the cutting units, drives, 6.
muffler and engine free of grass, leaves, excessive
grease, oil and dirt.

Park the machine on level ground.7.
NEVER allow untrained personnel to service the 8.

machine.
Use care when checking blades. Use a Blade Buddy,

9.
wrap the blade(s) or wear gloves and USE CAUTION
when servicing blades. Only replace blades. NEVER
straighten or weld blades.

10.

Keep all parts in good working condition. Replace all
worn or damaged decals.

Section 2

Use jack stands to support components when 11.
required.

Carefully release pressure from components with 12.
stored energy.

Let the engine cool before storing.13.
DO NOT store the machine near an open flame.14.
Shut off fuel while storing or transporting.15.
DO NOT store fuel near flames or drain indoors.16.

USING A SPARK ARRESTOR2.6

The engine in this machine is not equipped with a spark
arrestor muffler. It is in violation of California Public
Resource Code Section 4442 to use or operate this engine
on or near any forest covered, brush covered or grass
covered land unless the exhaust system is equipped with
a spark arrestor meeting any applicable local or state laws.
Other states or federal areas may have similar laws. Check
with your state or local authorities for regulations pertaining
to these requirements.

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Section 2

483402

483406

Molded in Fuel Tank

!

Avoid injury from burns.

Shut off engine before

removing fuel tank cap.

WARNING

INSTALL BELT COvER BEFORE

OPERATING MACHINE

READ OPERATOR'S MANUAL

WARNING

FALLING HAzARD

USE ONLY SCAG APPROvED

RIDING ATTACHMENTS

SEE OPERATOR'S MANUAL

483404

MOUNT RIDING

ATTACHMENT

HERE

WARNING

DO NOT OPERATE WITHOUT DISCHARGE CHUTE, MULCHING

KIT, OR ENTIRE GRASS CATCHER INSTALLED

483405

WARNING

* Keep hands, feet & clothing clear
* Keep all guards in place
* Shut off engine & disengage blade
clutch before servicing
* Use caution in directing discharge
* Read instruction manual before operating

ROTATING BLADES AND BELTS

DO NOT OPERATE UNLESS GRASS
CATCHER, MULCHING KIT OR
DISCHARGE CHUTE IS INSTALLED

483406

483404

SPINNING BLADES

KEEP CLEAR

BLADE CONTACT & THROWN

OBJECTS CAN INJURE

483505

483405

483505

WARNING

Operation of this equipment
may create sparks that can
start res around dry
vegetation. A spark
arrestor may be required.
The operator should contact
local re agencies for laws
or regulations relating to
re prevention requirements.

483900

483900

(supplied with California models only)

CAUTION

SAFETY AND INSTRUCTIONAL DECALS2.7

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Section 3

SPECIFICATIONS

ENGINE3.1

General Type ................................................................................................Heavy Duty Industrial/Commercial Gasoline

Brand ..................................................................................................................................................................Kawasaki

Horsepower:

(Scag Model SWZ36A-16KAI) .................................................................................16 HP (Spec. # FH480V-BS24-R)

(Scag Model SWZ36A-17KAI, SWZ48V-17KAI, SWZ52V-17KAI) ...........................17 HP (Spec.# FH541V-BS38-R)

(Scag Model SWZ52V-19KAI, SWZ-19KAI) .............................................................19 HP (Spec.# FH580V-BS34-R)

(Scag Model SWZ-21KAE) ......................................................................................21 HP (Spec. # FH641V-GS06-R)

Cylinders ...................................................................................................................2 with Cast-Iron Sleeves - Kawasaki

Governor ................................................Mechanical Type with Variable Speed Control Set At 3600 RPM (+/- 100 RPM)

Idle Speed:

Kawasaki ............................................................................................................................. 1550 RPM (+/- 150 RPM)

Fuel ......................................................................................Non-Leaded Gasoline with a Minimum Octane Rating of 87

Oil Pump ...............................................................................................varies - see engine manufacturer's specifications

Starter:

Kawasaki ................................................................................................................................................ Recoil Starter

ELECTRICAL3.2

Starter ...................................................................................................................... Electrical Ignition with Recoil Starter

Interlock Switches ................................................Operator Presence, Mower Engagement (BBC), Transmission Neutral

Instrument Panel ................................................................................................Key Switch, Throttle Lever, PTO Switch,

ENGINE DECK3.3

Drive System .... Hydraulic Drive with Two Variable Displacement Pumps and Two Cast-Iron High Torque Wheel Motors

Hydraulic Pumps .............................................................Two Hydro-Gear model PG Series 10 cc. Hydraulic Pumps

with Dump Valves for movement without the engine running

Hydraulic Drive Motors ...........................................Two Parker Model TE Series 12 cu. inch Cast-Iron Wheel Motors

Steering/Travel Control ..........................................Independent Handle Controls for each wheel, squeeze to move from

forward to neutral to reverse, neutral lock lever, speed range controlled
with single lever (patented design), in-field tracking adjustment with tool provided

Parking Brake ...............................................................................................7.5" Drum, Band Brake, one on each wheel

Wheels:

(2) Front Caster ....................................................................................................9 X 3.5 Flat-Free w/Roller Bearings

(2) Drive - ..............................................................................16 x 6.5-8 Four-Ply Pneumatic Tubeless, Radius Edge

Tire Pressure:

Front Caster....................................................................................................................................................Flat-Free

Drive .................................................................................................................................................................. 12 PSI

Fuel Tank ........................................................6-Gallon Seamless Polyethylene Tank with Large Opening and Fuel Cap

Travel Speed:

Forward .....................................................................................................................................................0 - 7.4 MPH

Reverse .....................................................................................................................................................0 - 3.0 MPH

-NOTE- The machine will travel at 7.4 mph for transport purposes. For best cutting performance the forward travel

speed should be adjusted depending upon the cutting conditions.

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Section 3

CUTTER DECK3.4

Type ......................................................................................................................Out-Front design with anti-scalp rollers

Construction ................36 / 48 = 7-Gauge Deck Top w/10-Gauge Reinforced Spindle Area, 7-gauge (3/16") Deck Skirt

52 / 61 = 10-Gauge Deck Top w/10-Gauge Reinforced Spindle Area, 7-Gauge (3/16") Deck Skirt
True Cutting Width:

36 .........................................................................................................................................................35.5" (90.2 cm)

48 ..........................................................................................................................................................48" (122.0 cm)

52 ..........................................................................................................................................................52" (132.0 cm)

61 ..........................................................................................................................................................61" (155.0 cm)

Cutting Height Adjustment ................................................................Adjustment from, 1-3/4" to 4-1/4" in 1/4"increments

Cutter Blades ............................................................................. 0.197 in. Thick, Milled Edge, Wear Resistant Marbain™

Blade Engagement ............................................................Electric Blade Engagement Clutch with Control Panel Switch

Connected to the Cutter Deck through a Belt.

Discharge Opening ...............................................Extra Wide Discharge Opening with Spring-Loaded Discharge Chute

Discharge Chute ...................................................................................................Black, Polypropylene (Plastic), Flexible

Spindles .............................................................................Cast-Iron Housing, Tapered Roller Bearings with Top Access

Grease Fitting and Grease Overfill Relief Poppet

Spindle Pulleys ........................................................................................................Split Steel with Tapered Locking Hub

Cutter Deck Belts ...................................................................................................................B-section with Kevlar Cords

Electric Clutch Type ................................................................................................Ogura Heavy Duty PTO Clutch Brake

WEIGHTS AND DIMENSIONS 36A / 48v 52v 61v3.5

Length..................................................................................... 72" / 76" ............................ 76" ....................................78"

Tracking Width ........................................................................37" / 37" ............................37"* ....................................41"

Overall Width w/chute down ..................................................47" / 60.5" ..........................64.5" ................................73.5"

Overall Width w/chute up ........................................................ 37" / 49" ............................53" ....................................62"

Overall Height ...................................................................... 40.5" / 40.5" ........................40.5" .................................40.5

Operating Weight ..................................................................515# / 565# .......................585#* ...............................717#

PRODUCTIvITY 36 / 48 52 613.6

Cutting Width .......................................................................... 36" / 48" ............................52" ....................................61"

Acres Per Day .........................................................................9.3 / 12.4 .......................... 13.5 ..................................15.8

The preceding chart will aid you in determining how many acres your Scag mower will cut per day. The chart is an
estimate based on 8 hours per day cutting time at 4 MPH with a 20% allowance for overlap and turns.
* Large Frame = Tracking Width - 41", Weight - 605#

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OPERATING INSTRUCTIONS

LEFT STEERING

CONTROL

IGNITION
SWITCH

MOWER

DECK

SWITCH

ENGINE
THROTTLE
CONTROL

RIGHT STEERING
CONTROL

NEUTRAL LATCH

NEUTRAL LATCH

OPERATOR PRESSENCE
CONTROL

OPERATOR PRESSENCE

CONTROL

BRAKE LEVER

SPEED CONTROL
LEVER

ENGINE CHOKE

CONTROL

CAUTION

Do not attempt to operate this mower unless you
have read this manual. Learn the location and
purpose of all controls and instruments before
you operate this mower.

CONTROLS AND INSTRUMENT 4.1

IDENTIFICATION

Before operating the mower, familiarize yourself with all
mower and engine controls. Knowing the location, function
and operation of these controls is important for safe and
efficient operation of the mower.

Ignition Switch (Figure 4-1).1. The ignition switch
is used to start the engine. Turn the key to the on
position before pulling the recoil starter.

Section 4

Mower Deck Switch (Figure 4-1). 2. Used to engage

and disengage the mower drive system. Pulling up
on the switch will engage the deck drive. Pushing
down on the switch will disengage the deck drive.

Engine Choke Control (Figure 4-1).3. Used to start
a cold engine.

Engine Throttle Control (Figure 4-1).4. Used to
control the engine speed. Pushing the lever forward
increases engine speed. Pulling the lever back
decreases engine speed. Full back position is the
IDLE position. Full forward is the cutting position.

Left Steering Control (Figure 4-1). 5. Used to control
the mower's left wheel when traveling forward or
reverse. Pull upward for neutral and reverse.

Right Steering Control (Figure 4-1).6. Used to
control the mower's right wheel when traveling
forward or reverse. Pull upward for neutral and
reverse.

Controls and InstrumentsFigure 4-1.

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Section 4

Speed Control Lever (Figure 4-1). 7. Used to select

the forward speed.

Neutral Latch (Figure 4-1).

8. Used to secure the belt

drive system in neutral. Apply neutral latches when
parking the machine.

Operator Pressence Control (Figure 4-1)9.

The operator pressence control levers must be
depressed before the transmission is shifted out of
neutral or engaging the mower deck.

Parking Brake Lever (Figure 4-1) 10. Used to engage
and disengage the parking brake. Pull the lever back
to engage the parking brake. Push the lever forward
to disengage the parking brake.

SAFETY INTERLOCK SYSTEM4.2

The mower is equipped with a safety interlock system that
shuts off the engine if the operator releases the operator
presence levers with the deck drive engaged and/or the
speed control lever not in neutral or the parking brake
disengaged. Never operate equipment with the interlock
system disconnected or malfunctioning..

STARTING THE ENGINE4.4

CAUTION

DO NOT USE STARTING FLUIDS. Use of starting
fluids in the air intake system may be potentially
explosive or cause a “runaway” engine condition
that could result in engine damage and/or
personal injury.

Be sure the fuel shutoff valve, located by the fuel 1.
tank, is completely open. (See Section 7.5.)

Apply the neutral latch levers.2.
Shift the speed control lever into neutral.3.
Place the PTO switch in the disengaged position.4.
Apply the parking brake.5.
If the engine is cold, choke the engine as needed.6.
Move the engine throttle control to about half engine 7.

speed.

WARNING

Never operate the mower with the interlock
system disconnected or malfunctioning. Do not
disengage or bypass any switch; injury to yourself
and others or property damage could result.

INITIAL RUN-IN PROCEDURES4.3

FIRST DAY OF USE OR APPROxIMATELY 20 HOURS

Check all belts for proper alignment and wear at 2, 4 1.
and 8 hours.

Change the engine oil and oil filter after the first 20

2.

hours of operation. (See Section 7.4.)
Check for loose hardware. Tighten as needed.3.
Check interlock system for proper operation. (See 4.

Section 4.2.)
Check tire pressure. Adjust pressure if necessary. 5.

(See Section 7.10.)

Turn the ignition key to the ON position.8.
Pull the recoil starter on the engine.9.
Allow engine to warm before operating the mower.10.

GROUND TRAvEL AND STEERING4.5

- IMPORTANT -

If you are not familiar with the operation of a walk
behind mower with a hydrostatic transmission, the
steering and ground speed operations should be
learned and practiced in an open area, away from
buildings, fences, or obstructions.

Learn the operation on flat ground before operating
on slopes.

Start practicing with a slow engine speed and slow
forward travel.

Learn to feather the steering controls to obtain a
smooth operating action.

Practice operating the mower until you are
comfortable with the controls before proceeding
to mow.

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Section 4

390S0138

PULL UP TO ENGAGE

PUSH DOWN TO DISENGAGE

FORWARD TRAvEL

To travel forward with the mower, release the parking brake,
select the desired speed using the speed control lever, pull
steering control levers upward, release the neutral latch
for both sides and slowly release both the left and right
steering control levers. The higher the notch selected using
the speed control lever, the faster the machine will travel.

To stop the forward travel, pull upward on the steering
control levers, lock the neutral latches, shift the speed
control lever into neutral and apply the parking brake.

To steer the mower left while traveling forward, pull upward
on the left steering control lever. The further the lever is
pulled upward, the quicker the mower will turn left.

To steer the mower right while traveling forward, pull upward
on the right steering control lever. The further the lever is
pulled upward, the quicker the mower will turn right.

- NOTE -

Smooth operation of the steering control levers will
produce smooth mower operation. While learning
the operation of the steering controls, keep the
travel speed low.

- NOTE -

The mower may not travel straight in reverse.

To steer left while traveling in reverse, pull upward on the
left steering control lever. The further the lever is pulled
upward, the quicker the mower will turn left.

To steer right while traveling in reverse, pull upward on the
right steering control lever. The further the lever is pulled
upward, the quicker the mower will turn right.

ENGAGING THE DECK DRIvE (CUTTER 4.6

BLADES)

Set the throttle at about 3/4 speed. Do not attempt to 1.
engage the deck drive at high speed as this shortens
the electric clutch life — use only moderate engine
speed when engaging the deck drive.

Engage the deck drive by pulling out on the yellow 2.
switch, located on the instrument panel, to the
engage position. See Figure 4-2.

REvERSE TRAvEL

CAUTION

Disengage power to the mower before backing
up. Do not mow in reverse unless absolutely
necessary and then only after observation of the
entire area behind the mower.

CAUTION

Before backing up, observe the rear for persons
and obstructions. Clear the area before backing
up. Possible injury or property damage could
occur.

To travel in reverse, pull steering control levers upward.
Keep the travel speed low while traveling in reverse.

Cutter Engage SwitchFigure 4-2.

- NOTE -

A squealing noise may be heard when engaging
or disengaging the deck drive. It is caused by the
electric clutch plates meshing as the mower comes
up to speed. This is normal.

To disengage the deck drive, push the switch in to 3.
the disengage position.

Always operate the engine at full throttle to properly 4.
maintain cutting speed. If the engine starts to lug
down, reduce the forward speed and allow the
engine to operate at maximum RPM.

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Section 4

HILLSIDE OPERATION4.7

WARNING

Keep the entire mower clean to inhibit serious heat

2.
damage to the engine or hydraulic oil circuit.

Check the drive belts for proper alignment and any

3.
signs of wear. Correct and adjust if necessary.

DO NOT operate on steep slopes. ALWAYS
FOLLOW OSHA APPROvED OPERATION.

This mower has been designed for good traction and 1.
stability under normal mowing conditions. However,
caution must be used when traveling on slopes,
especially when the grass is wet. Wet grass reduces
traction and steering control.

To prevent tipping or loss of control, do not start or 2.
stop suddenly, avoid unnecessary turns and travel
at reduced speed. If tires lose traction, disengage
blades and proceed slowly off the slope.

Avoid sudden starts when mowing on slopes.3.
Travel across the slope whenever possible. Never up 4.

and down the slope.
Keep tires properly inflated.5.

PARKING THE MOWER4.8

Park the machine on a flat, level surface only. Do not 1.
park the machine on an incline.

Disengage the cutter blades.2.
Shift the speed control lever into the neutral position, 3.

lock the neutral latches and apply the parking brake.
Slow the engine to idle speed.4.
Turn the ignition key to the OFF position and remove 5.

the key.

AFTER OPERATION4.9

Wash the entire mower after each use. Do not 1.
use high pressure spray or direct the spray onto
electrical components.

DANGER

To avoid injury from burns, allow the mower
to cool before removing the fuel tank cap and
refueling.

After the mower has cooled down, fill the fuel tank 4.
with fresh, clean fuel at the end of every day of
operation. See Engine Owner's Manual for proper
octane requirements.

Check the tire pressure. Adjust pressure if 5.
necessary.

REMOvING CLOGGED MATERIAL4.10

DANGER

ROTATING BLADES

NEvER PUT YOUR HANDS INTO THE DISCHARGE
CHUTE FOR ANY REASON!

Shut off the engine and remove the key and
only then use a stick or similar object to remove
material if clogging has occurred.

1.

If the discharge chute becomes clogged, shut off
the engine and remove the ignition key. Using a stick
or similar item, dislodge the clogged material. Then
resume normal mowing.

- IMPORTANT -

Do not wash a hot or running engine. Cold water
will damage the engine. Use compressed air to
clean the engine if it is hot.

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MOvING MOWER WITH ENGINE 4.11

Dump Valve Levers

STOPPED

To “free-wheel” or move the mower around without the
engine running, turn the dump valve levers located on the
back of the pumps counter clockwise o the "freewheel"
position and move the mower by hand. To operate the
mower, the dump valves must be turned clockwise to the
closed position.

Section 4

3.

Cut grass when it is dry and not too tall. Do not cut
grass too short (cut off 1/3 or less of existing grass
for best appearance). Mow frequently.

Keep mower and discharge chute clean.

4.
When mowing wet or tall grass, mow the grass twice. 5.

Raise the mower to the highest setting for the first
pass and then make a second pass to the desired
height.

6.

Use a slow travel speed for trimming purposes.
Operate the engine at full throttle for best cutting. 7.

Mowing with a lower RPM causes the mower to tear
the grass. The engine is designed to be operated at
full speed.

Use the alternate stripe pattern for best lawn 8.
appearance. Vary the direction of the stripe each
time the grass is mowed to avoid wear patterns in
the grass.

Dump ValvesFigure 4-3.

RECOMMENDATIONS FOR MOWING4.12

Do not mow with dull blades. A dull blade will tear 1.
grass, resulting in poor lawn appearance and
reduced mowing power.

WARNING

DO NOT operate without Discharge Chute,
Mulching Kit, or entire Grass Catcher properly
installed.

2.

The discharge chute must not be removed and
must be kept in the lowest position to deflect grass
clippings and thrown objects downward. Direct the
side discharge away from sidewalks or streets to
minimize cleanup of clippings. When mowing close
to obstacles, direct the discharge away from the
obstacles to reduce the chance of property damage
by thrown objects.

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Section 5

Width of Deck

SGB020

Width of Deck

SGB018

Width

of

Deck

Width

of

Deck

SGB019

CONDITION CAUSE CURE

TROUBLESHOOTING CUTTING CONDITIONS

STRINGERS - OCCASIONAL
BLADES OF UNCUT GRASS

STREAKING - STRIPS OF
UNCUT GRASS IN CUTTING
PATH

Low engine RPM Run engine at full RPM

Ground speed too fast Slow speed to adjust for conditions

Wet grass Cut grass after it has dried out

Dull blades, incorrect sharpening Sharpen blades

Deck plugged, grass accumulation Clean underside of deck

Belts slipping Adjust belt tension

Dull, worn blades Sharpen blades

Incorrect blade sharpening Sharpen blades

Low engine RPM Run engine at full RPM

Belt slipping Adjust belt tension

Deck plugged, grass accumulation Clean underside of deck

STREAKING - STRIPS OF
UNCUT GRASS BETWEEN
CUTTING PATHS

Ground speed too fast Slow speed to adjust for conditions

Wet grass Cut grass after it has dried out

Bent blades Replace blades

Not enough overlapping between rows Increase the overlap of each pass

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Width of Deck

SGB020

Width of Deck

SGB021

Width of Deck

SGB023

TROUBLESHOOTING CUTTING CONDITIONS (CONT'D)

CONDITION CAUSE CURE

Section 5

UNEvEN CUT ON FL AT
GROUND - WAvY HIGH-LOW
APPEARANCE, SCALLOPED
CUT, OR ROUGH CONTOUR

UNEvEN CUT ON UNEvEN
GROUND - WA vY APPEARANCE,
HIGH-LOW SCALLOPED CUT,
OR ROUGH CONTOUR

Lift worn from blade Replace blade

Blade upside down Mount with cutting edge toward ground

Deck plugged, grass accumulation Clean underside of deck

Too much blade angle (deck pitch) Adjust pitch and level

Deck mounted improperly See your authorized SCAG dealer

Bent spindle area See your authorized SCAG dealer

Dull blade Sharpen blade

May need to reduce ground speed, raise

Uneven ground

cutting height, and/or change direction
of cut

SLOPING RIDGE ACROSS
WIDTH OF CUTTING PATH

Tire pressures not equal Check and adjust tire pressure

Wheels uneven Check and adjust tire pressure

Deck mounted incorrectly See your authorized SCAG dealer

Deck not level side-to side Check for level and correct

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Section 5

Width of Deck

SGB022

Width of Deck

SGB024

Width of Deck

SGB025

TROUBLESHOOTING CUTTING CONDITIONS (CONT'D)

CONDITION CAUSE CURE

SCALPING - BLADES HITTING
DIRT OR CUTTING vERY CLOSE
TO THE GROUND

STEP CUT - RIDGE IN CENTER
OF CUTTING PATH

Low tire pressures Check and adjust pressures

Ground speed too fast Slow speed to adjust for conditions

May need to reduce ground speed, raise

Cutting too low

cutting height, change direction of cut,
and/or change pitch and level

May need to reduce ground speed, raise

Rough terrain

cutting height, and/or change direction
of cut

Ground speed too fast Slow speed to adjust for conditions

Wet grass Cut grass after it has dried out

Blades not mounted evenly Adjust pitch and level

Bent blade Replace blade

Internal spindle failure See your authorized SCAG dealer

SLOPE CUT - SLOPING RIDGES
ACROSS WIDTH OF CUTTING
PATH

Mounting of spindle incorrect See your authorized SCAG dealer

Bent spindle mounting area See your authorized SCAG dealer

Internal spindle failure See your authorized SCAG dealer

Bent deck housing See your authorized SCAG dealer

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ADJUSTMENTS

SLOW

FAST

TRACKING

ADJUSTMENT

SEE OPERAT

OR'S

MANUAL

390s0198-1

PARKING BRAKE ADJUSTMENT6.1

Adjust the parking brake so that when the brake 1.
hand lever is against the stop on the handle bar, the
brake levers on the brake shaft weldment are against
the stops on the engine deck.

Section 6

CAUTION

Adjust the brake only enough to hold the machine.
Excessive force may cause damage to the
machine or brake components.

Adjust the brake actuator rod on either side of the

2.
machine to obtain proper brake adjustment.

NEUTRAL ADJUSTMENT6.2

-NOTE-

Neutral has been set by your Scag dealer at the
time of set up and normally does not need to be
adjusted. If, however, you find that the neutral
has come out of adjustment, follow the procedure
below.

Raise the drive wheels off the ground and block the 1.
caster wheels to prevent the machine from moving.

Make sure the speed control lever is in neutral, 2.
the steering control levers are in the neutral latch
position, and the parking brake is on. Start the
engine.

Neutral AdjustmentFigure 6-1.

STEERING CONTROL ROD 6.3

ADJUSTMENTS

-NOTE-

This adjustment is made to allow the steering
control levers to be moved out of the neutral latch
without engaging reverse

Before making this adjustment be sure that the
speed control bearing is just touching the speed
control cam and that the bellcrank bearing is
resting in the center groove of the neutral cam.

Remove the speed control spring. Remove the 1.
steering control rod swivel hair pin. Check the
location of the swivel in the slotted hole in the
bellcrank.

Turn the swivel joint on the steering control rods 2.
until the swivel joint is centered in the slot in the
bellcrank..

Release the parking brake and note if the tires are 3.
rotating.

Start on the left side of the machine, using the 4.
adjustment wrench located on the left side of the
machine. Rotate the tracking adjustment nut counter
clockwise just until the LH wheel starts to creep
forward. Make note of the position of the adjustment
nut. Repeat on the right side as needed. See Figure
6-1.

Turn the adjustment nut clockwise just until the 5.
wheel turns rearward. Make note of the position
of the adjustment nut. To adjust neutral, split the
difference between the two noted positions of the
adjustment nut. Repeat on the right side as needed.

Place the wrench in the holder on the left side of the 6.
machine and turn the engine off.

Control Rod AdjustmentFigure 6-2.

Reinstall the speed control spring onto the swivel. 3.
Install the hair pin onto the swivel. See Figure 6-2.

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Section 6

Nut

"J" Bolt

Belt

End Of L-Shaped
Bracket

Washer

SC400G

CUTTER DECK DRIVE BELT TENSION

ALIGNMENT IDLER - L.H.

TRACKING ADJUSTMENT6.4

-NOTE-

Before proceeding with this adjustment, be sure
that the tire pressures are correct and the neutral
adjustment and the steering control rod adjustment
have been completed.

1.

With the machine on a flat level surface, start the
engine, release the parking brake and place the
speed control lever into the speed that will most
often be used.

Squeeze the steering control levers and release the

2.

neutral latch. Slowly release the steering control
levers, allowing the machine to move forward.

WARNING

Before attempting to make any tracking
adjustments, move the speed control lever to
the neutral position, place the blade engagement
switch in the off position, apply the parking brake,
and move the steering control levers into the
neutral position.

If the machine pulls to one side, stop the mower

3.

by placing the steering control levers in the neutral
position. Using the adjustment wrench located on the
left side of the machine, turn the tracking adjustment
nut on the slower side counter clockwise until the
machine tracks straight.

Bring the steering control levers back to the neutral 4.
lock position and check to see that the machine does
not creep forward on the adjusted wheel.

Tracking AdjustmentFigure 6-3.

THROTTLE CONTROL AND CHOKE 6.5

ADJUSTMENTS

These adjustments must be performed by your Scag dealer
to ensure proper and efficient running of the engine. Should
either need adjustment, contact your authorized Scag
service center.

CUTTER DECK BELT ADJUSTMENTS6.6

WARNING

Before removing any guards, shut the engine off
and remove the ignition key. Wait for all moving
parts to come to a complete stop before beginning
work.

Remove the belt cover.

1.
Adjust the cutter deck drive belt using a belt tension 2.

gauge. Adjust the belt so that the belt moves 1/2"
with 10 pounds of pressure. Adjust the tension by
tightening or loosening the J-bolt. See Figure 6-4.

If the machine creeps in neutral, you have moved out 5.
of the neutral band and will have to turn the tracking
adjustment nut clockwise until the machine does not
creep.

Repeat steps 1 and 2. If the machine continues 6.
to pull to one side, stop the mower by placing
the steering control levers in the neutral position.
Turn the tracking adjustment nut on the faster side
clockwise until the machine tracks straight.

If tracking cannot be acheived, contact your Scag 7.
servicing dealer.

Deck Drive Belt AdjustmentFigure 6-4.

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Section 6

WASHER

NUT

SC401G

BELT

DISCHARGE

AREA

BELT TENSION

ADJUSTMENT IDLER

SC402G Rev.2

CHECK BLADE DRIVE

BELT TENSION HERE

LOW CUT (1-3/4" to 3")

HIGH CUT
(3-1/4" to 4-1/2")

MID RANGE

(2-1/2" to 3-3/4")

Pin

Spacers

2003SGB005

-NOTE-

Due to initial belt stretch and to prevent the belt
from slipping, check this adjustment after the first
2 hours, 4 hours and 8 hours of operation.

3.

Adjust the RH blade drive belt using a belt tension
gauge. Adjust the belt so that the belt moves 1/2"
with 10 pounds of pressure. Adjust the tension by
tightening or loosening the J-bolt. See Figure 6-5
and Figure 6-6.

Cutter Deck Belt Adjustment R.H.Figure 6-5.

Due to many cutting conditions that exist, it is difficult to
suggest a cutter deck setting that will work for every lawn.
There are two adjustments that can be made to the cutter
deck, pitch and height.

PITCH is the angle of the blades (comparing front to
rear).

HEIGHT is the nominal distance the blade is off of the
ground. This measurement is made with the blades pointed
side to side and distance is measured between the cutting
tip and ground. (Also see Blade Height Adjustment).

Changes to the cutting height can be acheived by
repositioning the cutter deck. (This adjustment will also
effect the pitch of the deck). There are three available
positions. See Figure 6-7.

Caster spacers also can be repositioned to change the
cutting heights and to change the pitch of the cutter deck.
See Figure 6-8.

BELT ALIGNMENT6.7

Belt alignment is important for proper performance of
your Scag mower. If you experience frequent belt wear
or breakage, see your authorized Scag service center for
belt adjustment.

ADJUSTING CUTTING HEIGHT6.8

The mower deck can be adjusted from a height of 1-3/4
inches to 4-1/4 inches at 1/4-inch intervals.

Cutter Deck BeltFigure 6-6.

Adjusting Cutting HeightFigure 6-7.

Caster Wheel SpacersFigure 6-8.

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Section 6

2002 SC407G

BLADE HEIGHT ADJUSTMENT

Adjusting the blade height can be done by moving any number
of the five smaller 1/4" spacers on the blade mounting bolts
to the top of the spindle shaft or below the spindle shaft.

-NOTE-

All blades should be positioned equally.

WARNING

Blades have a sharp cutting edge. Wear proper
eye protection and protective gloves or wrap the
blades with protective material when removing,
sharpening and installing blades.

For best cut and discharge, a minimum of three spacers
should be installed between the blade and the spindle. See
Figure 6-9.

CUSTOM-CUT BAFFLE ADJUSTMENT

The Custom-Cut Baffle is designed to deliver optimum
airflow and superior cutting performance in any type of
grass. The Custom-Cut Baffle can be raised or lowered
to precisely tailor the deck's performance for the type of
grass being cut. The baffle can be set in seven (7) different
positions for optimum performance.

A. 3-1/2" or 3-3/4" Position - (See Figure 6-10). For
very tall, wiry or tough-to-cut grass.

B. 4" (factory setting), 4-1/4" or 4-1/2" Position - (See
Figure 6-10). For general purpose cutting. This gives
the best mix of cutting performance in all types of
grass.

C. 4-3/4" or 5-1/4" Position - (See Figure 6-10).
Placing the baffle in either the 4-3/4" or 5-1/4" setting
will enhance fall cutting (leaf pickup) and reduce cutter
deck "blowout".

To adjust the Custom-Cut Baffle height:

Place the cutter deck in the transport position.1.
Remove the hardware securing the Custom-Cut 2.

Baffle to the cutter deck.

- NOTE -

Hardware location used in the illustrations are for
reference only. Location of hardware may vary
depending on cutter deck size.

Move the Custom-Cut Baffle to desired position. 3.
(See Figures 6-10).

Reinstall the mounting hardware. Torque hardware to 4.
39 ft-lbs.

Blade SpacersFigure 6-9.

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Section 6

1

2

3

4

A
B

1

2

3

4

A

B

Custom-Cut Baffle Adjustment

Mounting Slot Selected Mounting Hardware Location

Slot “A” Hole 1 Hole 2 Hole 3 Hole 4
Height (inches) 3-3/4” 4-1/4” 4-3/4” 5-1/4”

Slot “B” Hole 2 Hole 3 Hole 4
Height (inches) 3-1/2” 4” 4-1/2”

Custom-Cut Baffle AdjustmentFigure 6-10.

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Section 6

INSPECTION WINDOW (x3)

INSERT 0.015 FEELER GAUGE HERE

ADJUSTMENT NUTS

ADJUSTMENT NUTS

ELECTRIC CLUTCH ADJUSTMENT6.9

The electric clutch serves two functions in the operation of
the mower. In addition to starting and stopping the power
flow to the cutter blades, the clutch also acts as a brake to
assist in stopping blade rotation when the PTO is switched
off or the operator presence circuit is interrupted.

When the clutch is disengaged, the air gap between the
armature and rotor must be adjusted to fifteen thousandths
of an inch, 0.015, for proper operation. The airgap
adjustment is made at three bolts on the clutch. There are
three inspection windows, one next to each adjusting bolt.
See Figure 6-11.

Clutch Air Gap AdjustmentFigure 6-11.

Locate the inspection windows on the clutch.1.
Place a 0.015 feeler gauge in the slot between the 2.

rotor and the armature. See Figure 6-12.

Clutch Air Gap AdjustmentFigure 6-12.

Tighten or loosen the adjusting bolt as needed to 3.
acheive the 0.015 inch airgap. See Figure 6-13.
Perform this operation at all three inspection
windows.

Clutch Air Gap AdjustmentFigure 6-13.

This adjustment should be done every 500 hours of
operation or annually, whichever comes first. In cases
where the machine is heavily used, airgap settings should
be checked more often.

If the air gap is too narrow, the clutch armature may drag
when disengaged, resulting in premature failure.

If the air gap is too wide, the clutch may be slow to engage
as the magnet must pull the armature in from a greater
distance.

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MAINTENANCE CHART - RECOMMENDED SERvICE INTERvALS7.1

BREAK-IN
(FIRST 10)

X

Section 7

MAINTENANCE

HOURS

PROCEDURE COMMENTS

8 20 40 100 200 500

Check all hardware for tightness

X

X
X
X
X
X
X
X
X

X

X

X

X

Check all belts for proper
alignment

Check engine oil level See paragraph 7.3
*Clean mower
Check tire pressure See paragraph 7.8
*Clean air filter element See paragraph 7.5
Check condition of blades See paragraph 7.7
Sharpen cutter blades See paragraph 7.7
Check tire pressure See paragraph 7.10
Check belt tension See paragraph 6.3
Check the operator interlock

system
Change engine oil and filter See paragraph 7.3

Grease spindle bearings

Check belts for proper alignment See paragraph 7.6

See paragraph 7.6

See paragraph 4.2

X

X

X
X
X
X

X

X

* Perform these maintenance procedures more frequently under extreme dusty or dirty conditions

Check all belts for proper
alignment

*Replace engine air filter See engine operator's

manual

Grease caster wheel bearings See paragraph 7.2
Check hydraulic system oil level See paragraph 7.3
Check all hardware for tightness
Change engine oil See paragraph 7.4
Grease brake lever and brake

actuator levers
*Clean air cleaner element See paragraph 7.5

See paragraph 7.2

24