Scag Power Equipment SWZ Manual de usuario

MODEL SWZ

OPERATOR’S MANUAL

THIS MANUAL CONTAINS THE OPERATING

INSTRUCTIONS AND SAFETY INFORMATION

FOR YOUR SCAG MOWER. READING THIS

MANUAL CAN PROVIDE YOU WITH ASSIS-

TANCE IN MAINTENANCE AND ADJUST-

MENT PROCEDURES TO KEEP YOUR MOWER

PERFORMING TO MAXIMUM EFFICIENCY.

THE SPECIFIC MODELS THAT THIS BOOK

COVERS ARE CONTAINED ON THE INSIDE

COVER. BEFORE OPERATING YOUR MA-

CHINE, PLEASE READ ALL THE INFORMA-

TION ENCLOSED.

PART NUMBER 03044

FAILURE TO FOLLOW SAFE OPERATING PRACTICES

MAY RESULT IN SERIOUS INJURY.

* 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.

* Read this manual completely as well as other manuals that came

with your mower.

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.

lways use the entire serial number listed on the serial number

tag when referring to this product.

WARNING:

This manual covers the operating instructions

and illustrated parts list for:

SWZ36-14KA with seri l number of 3230001-3239999

SWZ36-14KH with seri l number of 3240001-3249999

SWZ48-14KA with seri l number of 3250001-3259999

SWZ48-14KH with seri l number of 3260001-3269999

SWZ48-14KAE with seri l number of 3270001-3279999

SW48-16BV with seri l number of 3280001-3289999

SWZ-14KA with seri l number of 3300001-3309999

SWZ-16BV with seri l number of 3310001-3319999

SWZ-16BVE with seri l number of 3320001-3329999

SWZ-18BV with seri l number of 3330001-3339999

SWZ-20CVE with seri l number of 3340001-3349999

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 and through-

out 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 on safety decals and through-

out this manual that alerts the viewer to the existence

and relative degree of the ha ard.

The signal word DANGER denotes that an ex-

tremely ha ardous situation exists on or near the

machine that could result in high probability of death

or irreparable injury if proper precautions are not

taken.

The signal word WARNING denotes that a ha ard

exists on or near the machine that can result in injury

or death if proper precautions are not taken.

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.

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 instruc-

tions in this manual.

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.

A replacement Operator's Manual is available from

your Scag Servicing Dealer or by contacting Scag

Power Equipment, Service Department, at P.O. Box

152, Mayville, WI 53050. Please indicate the com-

plete model and serial number of your Scag product.

USE O OTHER THAN ORIGINAL SCAG

REPLACEMENT PARTS WILL VOID THE

WARRANTY.

The Right and Left, Front and Rear of the

machine are referenced from the operators perspec-

tive when in the normal operating position and facing

the forward travel direction.

GENERAL SAFETY INSTRUCTIONS

READ THIS OPERATOR'S MANUAL and

instructions furnished with attachments.

Perform only those maintenance procedures de-

scribed in this manual. If major repairs are ever

needed or assistance is desired, contact an Author-

i ed Scag Dealer. To ensure optimum performance

and safety, always purchase genuine SCAG replace-

ment parts and accessories.

Your safety and the safety of others depends signifi-

cantly upon your knowledge and understanding of all

correct operating practices and procedures of this

machine.

WARNING:

CAUTION:

BEFORE OPERATING

1. Know the controls and how to stop quickly.

2. Do not allow children to operate the machine.

Do not allow adults to operate the machine

without proper instruction.

3. Remove all debris or other objects that might be

picked up and thrown by the cutter blades. Keep

all bystanders away from the mowing area.

4. Keep all shields, safety devices, and decals in

place. If a shield, safety device or decal is defec-

tive or damaged, repair or replace it before

operating. Also, check all nuts, bolts and screws

for proper tightness, to assure the machine is in

safe operating condition.

5. Do not operate the machine while wearing

sandals, tennis shoes, sneakers or shorts. Also,

do not wear loose fitting clothing which could get

caught in moving parts. Always wear long pants

and substantial shoes. Wearing safety glasses and

safety shoes is advisable and required by some

local ordinances and insurance regulations.

6. Fill the fuel tank with clean, fresh gasoline, with a

minimum octane rating of 87. Avoid spilling

gasoline. Gasoline is highly flammable, handle it

carefully.

A. Use an approved gasoline container.

B. Do not fill the tank while the engine is hot or

running.

C. Do not smoke while handling gasoline.

D. Fill the fuel tank outdoors and up to approxi-

mately 1" (25 mm) below the bottom of the

filler neck.

E. Wipe up any spilled gasoline.

7. Before attempting to start the engine, move the

speed adjustment lever into the neutral position,

move the blade engagement switch to the OFF

position, apply the parking brake, and move the

neutral latches to neutral.

WHILE OPERATING

1. Start the engine when the neutral latches are in

the neutral lock position, the cutter blades are

disengaged, the parking brake is on and the speed

adjustment lever is in the neutral position.

2. Do not run the engine in a confined area without

adequate ventilation. Exhaust fumes are ha ard-

ous and could possibly be deadly.

3. Using the machine demands attention. To

prevent loss of control:

A. Mow only in daylight or when there is good

artificial light.

B. Watch for holes or other hidden ha ards.

C. Do not drive close to a drop-off, ditch, creek

bank, or other ha ard.

D. Reduce speed when making sharp turns and

when turning on hillsides.

E. Always be sure of your footing. Keep a firm

hold on the handles and walk---never run.

F. Do not operate where conditions are slippery.

4. The discharge chute must always be installed and

in the down position on the side discharge cutter

deck except when the Scag optional grass

catcher or mulching plate are properly installed.

If the discharge area should plug, shut the engine

off and wait for all movement to stop before

removing the obstruction.

5. Disengage the blades and wait for them to stop

before crossing gravel drives, walks or roads.

6. Shut the engine off and wait until the blades

come to a complete stop before removing the

grass catcher container.

7. Never raise the cutter deck while the blades are

rotating.

8. Always park the mower and/or start the engine

on a level surface. Apply the parking brake to

prevent the mower from moving when you are

not in the operators position.

9. If the cutting blades should strike a solid object

or the equipment should start to vibrate abnor-

mally, stop the engine, disconnect the spark plug

wire, and check immediately for the cause.

Vibration is generally a warning of trouble.

Check the machine for damaged or defective

parts. Repair any damage before starting the

engine or operating the cutter deck. Be sure the

blades are in good condition and the blade bolts

are tight.

10. 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.

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. ALWAYS FOLLOW OSHA

APPROVED OPERATION.

11. Do not touch the engine or muffler while the

engine is running or soon after it is stopped.

These areas could be hot enough to cause a burn.

12. Before leaving the operators position or leaving

the mower unattended, move the speed adjust-

ment lever into the neutral position, place the

neutral latches in the neutral lock position, apply

the parking brake, and move the blade engage-

ment switch to OFF. Shut the engine OFF and

remove the key.

13. Do not pass or stand on the grass discharge side

of any mower with the engine running. Stop

operation when another person approaches.

14. Use only Scag approved riding attachments.

Scag Approved Riding Attachments:

RS-ZT

Using unapproved attachments, (especially "stand-

up" riding attachments) may be ha ardous.

MAINTENANCE AND STORAGE

1. Disconnect the spark plug wire from the spark

plug to prevent accidental starting of the engine

when servicing, adjusting or storing the machine.

2. If the mower must be tipped to perform mainte-

nance or adjustment, remove the battery, drain

the gasoline from the fuel tank and the oil from

the crankcase.

3. To reduce potential fire ha ard, keep the engine

free of excessive grease, grass, leaves and accu-

mulations of dirt.

4. Be sure the machine is in safe operating condition

by keeping nuts, bolts, and screws tight. Check

the blade mounting bolts and nuts frequently to

be sure they are tightened.

5. If the engine must be running to perform a

maintenance adjustment, keep hands, feet, cloth-

ing and other parts of the body away from the

cutter deck blades and other moving parts.

6. Do not overspeed the engine by changing gover-

nor settings. To be sure of safety and accuracy,

have an authori ed dealer check maximum engine

speed with a tachometer.

7. The engine must be shut off before checking the

oil or adding oil to the crankcase.

8. Allow the engine to cool before storing the

mower in any enclosure such as a garage or

storage shed. Make sure the fuel tank is empty if

the machine is to be stored in excess of 30 days.

Do not store the mower near any open flame or

where gasoline fumes may be ignited by a spark.

WARNING:

WARNING

FALLING HAZARD

USE ONLY SCAG APPROVED

RIDING ATTACHMENTS

SEE OPERATOR'S MANUAL

481109

9. Always store gasoline in a safety-approved, red

container.

10. Be careful when servicing the battery as it con-

tains acid, which is corrosive and could cause

burns to skin and clothing.

11. Batteries release explosive gases when being

charged or discharged. Keep batteries away

from any source of sparks and/or flame.

12. Make sure all hydraulic connections are tight and

all hydraulic hoses and lines are in good condi-

tion before starting the machine.

13. Hydraulic fluid is under high pressure. If you

need service on your hydraulic system, please see

your authori ed Scag dealer.

INITIAL RUN-IN PROCEDURES

(FIRST DAY OF USE OR APPROXI-

MATELY 10 HOURS)

1. Check the belts for proper tension at 2, 4 and 8

hours. Adjust as needed.

2. Check the steering control rods and the speed

control for neutral adjustment. (See Adjust

ments, page 6-8)

3. Check the tires for proper pressure.

Caster Wheels 25 psi.

Drive Wheels 15 psi.

4. Check for loose hardware. Tighten as needed.

5. Check the safety switches for proper adjustment:

* The engine should crank and start if the

machine is in neutral, the PTO engage-

ment switch is OFF and the parking brake

is ON.

6. Apply lubricant to all the grease fittings. Lubri-

cant was applied at the factory. This is just a

precautionary check to make sure that all the

fittings have been lubricated.

MOWER OPERATION

-NOTE-

Use gasoline with an octane rating no less than

87.

* The speed adjustment lever must be in

NEUTRAL.

* The blade clutch switch must be in the OFF

position.

* The neutral latches must be in the neutral

lock position.

* The key switch must be on.

* The parking brake must be on.

3. Start the engine:

* Choke as required. If the engine is cold, pull

the choke knob out. When the engine starts,

slowly push the choke in. If the engine stalls,

repeat the above operation. When the engine

is warm, choking may not be necessary.

4. Engage the cutter blades by lifting and pushing

the blade cluch switch into the ON position. Pull

the switch to the OFF position to disengage the

cutter blades.

-NOTE-

When PTO is engaged or (possibly) disengaged,

a squealing sound rom the underside o the

machine is normal. It is caused by the electric

clutch plates meshing as the mower comes up to

speed. For best equipment li e, engage the

clutch with the engine at 1/2 throttle, not under

ull load.

1. Read and understand the safety instructions

before attempting to operate this machine.

2. Before starting the engine:

* Check the oil level in the engine and the

hydraulic reservoir.

* Fill the fuel tank with clean, fresh, lead-free

gasoline.

* Open the fuel valve on the bottom of the

fuel tank.

If you are not familiar with the operation of the

hydrostatic drive and zero turn feature, practice

turning and maneuvering with the hand controls

before engaging the blades.

5. Release the parking brake. Move the speed

adjustment lever to the desired mowing speed.

-NOTE-

Top speed is suggested only or transport!

6. While squee ing the steering brake levers with

both hands, release both neutral latches.

7. When the steering brake levers are released, the

machine will travel straight. To make a right

turn, squee e the RH lever. To turn left,

squee e the LH lever.

8. TO STOP, squee e both levers, lock the neutral

latches, and move the speed adjustment lever to

neutral.

9. To move the machine in reverse, squee e up on

both steering control levers.

10. To "freewheel" or move the machine around

without the engine running, turn the dump valve

levers located at the back of the pumps to the

"freewheel" positions.(see Figure 1). To operate

the machine the dump valve levers must be

returned to the closed positions.

ire pressure can be adjusted for

WARNING:

Dump Valve Levers

(normal position)

SGB112

Figure 1 Dump Valves

CUTTER DECK BELT ADJUSTMENTS

-NOTE-

The hydro drive belt is spring loaded and does

not require adjustment.

1. Remove the belt cover.

2. Adjust the cutter deck 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

nut. (See figure 2)

SC400G

BELT

WASHER

"J" BOLT

NUT

CUTTER DECK DRIVE BELT TENSION

ALIGNMENT IDLER - L.H.

END OF L-SHAPED

BRACKET

Figure 2 Deck Drive Belt Adjustment

-NOTE-

Due to initial belt stretch and to prevent the belt

rom slipping, check this adjustment a ter the

irst 2 hours, 4 hours and 8 hours o 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

nut. (See figure 3)

"J" Bolt

Nut

Belt

Deck

Washer

Figure 3. Cutter Deck Belt Adjustment R.H.

4. Replace the belt cover.

CUTTER DECK ADJUSTMENTS

Due to the 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 on these decks, pitch and height.

PITCH is the angle of the blades (comparing front

to rear). A 1/4" downward pitch (front of deck

down) is recommended for best cutting perfor-

mance.

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 cutting tip and ground. (Also see Blade

Height Adjustment)

Changes to the cutting height can be achieved by

repositioning the cutter deck. (This adjustment will

also effect the pitch of the deck). There are three

available positions (see figure 4).

SC405G

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

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

MID RANGE

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

CUTTER DECK HEIGHT ADJUSTMENT

Figure 4 Cutting Height Adjustment

Caster spacers also can be repositioned to change

cutting heights and to change the pitch of the deck.

(See figure 5)

SC406G

PIN SPACERS

REPOSITIONING SPACERS

Figure 5. Caster Wheel Spacers

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.

For best cut and discharge, a minimum of three

spacers should be installed between the blade and the

spindle. (See figure 6)

CUTTER BLADES

Do not sharpen beyond 1/3 of the width of the blade.

(See figure 7)

-NOTE-

Dress the blade with a ile. Using a wheel

grinder may burn the blade. Check the balance

o the blade. I blades are out o balance, vibra-

tion and premature wear o spindle assembly can

occur. See your authorized Scag dealer or

blade balancing or special tools, i you choose to

balance your own blades.

SC407G

Figure 6. Blade Spacers

SC4O8G

ANGLE BLADE BACK

DO NOT CUT IN

X MUST NOT EXCEED

1/3 BLADE WIDTH

Figure 7. Blade Sharpening

NEUTRAL ADJUSTMENT

1. Raise the drive wheels off the ground and block

the caster wheels.

2. Remove the speed control spring and the steer-

ing control rod from the machine. (See figure 8)

Steering Control

Rod

Spring Handle Bellcrank

SC160G

Bolts

Figure 8 Neutral Adjustment

3. Loosen the wing nut and let the speed adjust-

ment bearing lever fall away from the cam.

4. Start the engine and observe the drive wheels. If

the drive wheels are rotating, Loosen the bolts

on the neutral adjustment handle and move the

handle up or down until the wheels are in neu-

tral. (See figure 8)

5. Tighten the bolts on the neutral adjustment

handle. When tightening the bolts, hold the

bellcrank to prevent it from moving and throw-

ing off the neutral adjustment.

6. Turn the engine off.

STEERING CONTROL ROD

ADJUSTMENT

-NOTE-

This adjustment is made to allow the steering

control levers to be moved out o the neutral

latch without engaging reverse.

1. Connect the steering control rods into the steer-

ing control levers on the handle. Do not install

the hair pin at this time.

2. Turn the swivel joint on the steering control rods

until the swivel joint is centered in the slot in the

bellcrank.

3. Remove the steering control rods from the

machine. Install the speed control spring onto

the swivel joint. Reinstall the steering control

rods onto the machine and secure using the hair

pins.

-NOTE-

Be ore proceeding with this adjustment be sure

that the tire pressures are correct. (see page 4)

and that the neutral adjustment and the steering

control rod adjustment have been completed.

1. Engage the neutral latch on both steering control

levers and move the speed adjustment lever into

the neutral position.

2. Position the speed adjustment lever so that the

bearing just contacts the speed adjustment cam.

(See figure 9)

Steering Control Rod

Speed Control Spring Bellcrank

SC161G

Swivel

Joint

Speed Adjustment

Cam

Bearing

Speed

Adjustment

Bearing Lever

TRACKING ADJUSTMENT

3. Tighten the bearing securing the speed adjust-

ment bearing lever and repeat on the opposite

side.

4. With the machine on a flat level surface, start the

engine and place the speed adjustment lever into

the speed that will most often be used.

5. Squee e the steering control levers and release

the neutral latch. Slowly release the steering

control levers allowing the machine to move

forward.

6. If the machine pulls to one side, put the speed

adjustment lever back into the neutral position

and turn the engine off.

7. On the side that the machine pulled toward,

loosen the wing nut securing the speed adjust-

ment bearing lever and move the bearing 1/16"

away from the cam. Start the engine and recheck

the tracking. Adjust as needed.

8. If tracking cannot be achieved, contact your Scag

servicing dealer.

PARKING BRAKE

1. Adjust the parking brake so that when the brake

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.

Adjust the brake only enough to hold the

machine. Excessive force may cause damage

to the machine or brake components.

2. Adjust the brake actuator rod on either side of

the machine to obtain proper brake adjustment.

CAUTION:

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