Husqvarna ZTHKH4818A Manual de usuario

Operators manual Models:

968999157 / ZTHKH4818A

968999158 / ZTHKH4820A

968999168 / ZTHKW4818A

968999169 / ZTHKW4821A

968999170 / ZTHQL4218A

968999172 / ZTHQL4221A

MANUAL NO. 539105116 REV. 03 (12/13/00)

Please read these instructions carefully and make

sure you understand them before using the machine.

Continuous dedication to improve our products require that specifications and design are

subject to change without notice.

Congratulations onthepurchaseof yourHusqvarna mower.Thismanual hasbeenprepared

for the owners and operators of the Zero Turn Small Frame 48" commercial mowers. Read,

understandandfollow thesafetyand operatinginstructions.

! WARNING

Failure to follow cautious operating practices can result in serious injury to the operator or

other persons. The owner must understand these instructions, and must allow only trained

persons who understand these instructions to operate the mower. Each person operating

the mower must be of sound mind and body and must not be under the influence of any mind

altering substance.

! CAUTION

1.Keep all shields,guards andsafety devices inplace andin properworking condition.

2.Stop engineandremove sparkplug wiresor removekey beforeadjusting, servicing, orper-

formingmaintenance.

TECHNICAL ASSISTANCE

If you have any questions pertaining to your mower contact your dealer. To locate the nearest

dealerplease call1-800-HUSKY-62.

Fortechnicalassistancepleasewrite: Husqvarna,7349StatesvilleRoad,Charlotte,NC,28269

orcall: 1-800-HUSKY-MD.

WARNING: Engine exhaust, some of it’s constituents, and certain vehicle componets

contain or emit chemicals known to the State of California to cause cancer and birth

defects or other reproductive harm.

WARNING: Battery posts, terminals and related accessories contain lead and lead

compounds, chemicals known to the State of California to cause cancer and

birth defects or other reproductive harm. Wash hands after handling.

TABLE OF CONTENTS

SAFETY:

1.Training

2.Preparation

3.Operation

4.Transportation

5.Maintenance

SETUP AND ADJUSTMENTS:

1. Park brake

2.Cuttingheight

3.Mower deckleveling

4.Front deckbelt routing

5.Throttlelevertension

6.Reversespring detentadjustment

7.Motioncontrollinkageadjustment

OPERATING INSTRUCTIONS:

1.Controls

2.Starting andoperation

MAINTENANCE:

1.Engine oillevel

2.Pump compartment

3.Mower blades

4.Safety interlocksystem

5.Hardware

6.Aircleaner

7. Engine oil

8.Hydraulic oil

9.Tire pressure

10.Battery

11. Belts

12.Lubrication

13.Fuel filter

14.Hydraulic filterand oil

TROUBLE SHOOTING:

SAFETY

TRAINING:

1. Read this manual carefully and question your dealer if something is not clear.

2. Be thoroughly familiar with the controls and proper use of the equipment.

3. Never allow children, teenagers, or people unfamiliar with these instructions to use the

mower.

4. Do not mow while people, particularly children, or pets are nearby.

PREPARATION:

1. The use of personal protective equipment such as (but not limited to) protection for the

eyes, ears, feet and head is recommended.

2. Never operate the mower without proper guards, covers, safety switches and devices in

place and properly functioning. Inspect these items daily for their condition and proper op-

eration. If the condition or operation of any of these devices is questionable they must be

replaced or repaired before using the mower.

3. Thoroughly inspect the area to be mowed and remove all stones, sticks, wire and other

debris that may be thrown by the mower. Also note or mark other obstacles such as holes,

stumps, etc..

4. Do not operate the mower when barefoot or wearing open shoes. Always wear substantial

footwear and long pants.

5. Fill gas tank(s) before starting mower. DO NOT SMOKE near gasoline containers. Do not

fill gas tank indoors or when engine is hot or running. Clean off any spilled gasoline before

starting the mower.

OPERATION:

1. Mow only in daylight or good artificial light.

2. Do not operate the mower in wet grass if possible.

3. Mow up and down slopes. Use extreme caution when mowing or turning on slopes.

Always turn to the downhill side. Do not mow excessively steep slopes ( mower may tip

over and cause injury or death ).

4. Use caution when backing up.

5. Stop the blades when crossing surfaces other than grass; or when traveling to and from

the area to be mowed.

6. Never operate the mower with defective, broken or excessively worn parts. Keep all

guards, shields, and safety devices in place and in proper working order.

7. Do not change the engine governor settings or over speed the engine. Operating the

engine at excessive speeds will increase the hazard of injury and can severely damage your

machine.

8. Keep hands, feet and clothing away from rotating parts when operating mower.

9. Stop the blades and engine and set park brake before leaving the operators position for

any reason.

10. Never make adjustments to the mower while engine and/or blades are running.

11. After striking a foreign object, stop mower and remove key. Inspect the mower for any

damage and repair it immediately before continuing to mow.

12. Never operate this equipment in an enclosed or confined area without proper ventilation

of the engine exhaust.

13. Do not allow any passengers to ride on the mower. It is designed for the operator only.

Keep others away from the mower when in operation.

SAFETY

TRANSPORTATION:

Use a heavy duty trailer to haul mower. Set park brake, turn off fuel valve and strap mower to

trailer.NOTE: Parkbrakewillnot holdmowerinplace whentransporting.Besure totiedownthe

mowerto thetrailer.Always backonto thetrailerto preventpossible tipover.

1. Keepall nuts,boltsand screwstight tokeep mowerin safe operatingcondition.

2. Enginemaintenanceshouldcomplywith enginemanufacturesspecifications. Seetheengine

manualfor specifications.

3. Neverstore themowerwith gasin thetankinside abuilding wherefumescan reachanopen

flameor spark.

4. To reduce the risk of fire, keep the mower free of grass, leaves and excessive grease or oil.

5. Haveyour mowerinspected andservicedeach yearby anauthorizedHusqvarnadealer.

6. Use only authentic Husqvarna replacement parts to insure the safety and quality of your

moweris maintained.

7. Safety decals should be replaced if they are missing or illegible. Decals can be purchased

from yourHusqvarna dealer.

8. Thehydraulicsystemincluding allhosesandfittings shouldbecheckedfrequentlyfor wearor

leaks. Never check for leaks with your hands, use a piece of cardboard or wood. Hydraulic oil

under pressure could be injected into your body and must be surgically removed within a few

hours.

EQUIPMENT SETUP AND ADJUSTMENTS

1. Uncratemower

2. Mountdrivewheels usingthefour lugnutsinstalledon thehub.

3. Check tire pressure in all four tires. Pressure for all four tires is 15 psi

4. Removethe motioncontrol leversandinstall onthe insideof thecontrol arms(Seefigure 1).

Alignthe leversso theyareeveninthe neutralposition. (Seefigure 6)

5. Installseat lanyardto the seatframe with5/16" hardware.Seat lanyardis locatedunder the

seatin thehydraulicpump area.Attach thelanyardto theleft frontseatstud ontheseatframe.

6. Checkengine oilwithdip stick. Addifneeded perengine manufacturesspecifications. (See

Kawasakiengine manualfor enginespecifications.)

7. Loosen the discharge chute slightly and lower into position. Chute should be snug but still

pivotfreely.

Figure 1

ADJUSTMENTS

PARK BRAKE:

1.Stop engineandremovekey. Whiletheparkbrake lever”A”isintheonposition. Thedistance

betweenthe swivel”C”and thebolt head”B”should be3/8” to1/2”approximately.(SeeFig.2)

2.If adjustmentis needed,usingtwo 1/2”wrenches, loosenthe nut”F”abovethe turnbuckle”G”

whileholding theturnbuckle”G” fromturning. Afterthe nut”F”is looseandout ofthe way. While

holdingthebolthead”B” fromturning. Turntheturnbuckle”G”theproperdirectionto lengthenthe

distance or to shorten the distance. After the proper distance is obtained retighten the nut”F”

againsttheturnbuckle”G”.

3. While the park brake lever”A” is still in the on position, measure the length of the spring”D”.

Shouldmeasure 2”.(SeeFig. 2)

4. If adjustment is needed loosen or tighten the nut”E” below the spring”D”. While holding the

turnbuckle”G”tokeep theassemblyfromturning.

FIGURE 2

CUTTING HEIGHT:

1. Stop the mower and disengage the blades.

2. Raise the deck height lever to the transport position.

3. Remove the height adjustment pin and place it in the desired cutting height hole. Move

deck height lever down onto the pin and mow. NOTE: anti-scalp rollers must be in the proper

position for maximum deck floatation. See the decal on the front deck.

MOWER DECK LEVELING:

1. Position mower on a flat surface and stop engine.

2. Check the tire pressure of all four tires. Inflation should be 15 psi.

3. Place two 2x4’s on edge under the cutting deck from front to rear and lower the deck down

onto the 2x4’s.

4. Adjustthe fourupper chainbolts “H”to thecenter ofthe slotin thedeck liftarms(SeeFig2).

NOTE:make suredeck liftblocks aretightly boltedto theframe .

5. Checkchains forequaltension. If unequal,adjust upperchainbolt inslot.

6. Place deck in the 5" cutting height and measure from the cutting edge of the blade to a flat

surfaceto checkdeckcutting height.

ADJUSTMENTS

FRONT DECK BELT ROUTING: (See Fig. 4)

Figure 4

THROTTLE LEVER TENSION:

1. Stop engine and remove key.

2. If throttle lever becomes loose, tension may be adjusted by tightening the pivot bolt. The

pivot bolt holds the throttle arm to the throttle mounting bracket which is located under the

console. Access is gained by removing the foot plate and the kick plate. See page 3.

REVERSE SPRING DETENT ADJUSTMENT:

1.Stop engineand removekey.

2.Pullthemotioncontrolleverbacktothereverse positionandreleasethelever. Whenthelever

stopsit shouldbe inline withthe neutralslot, soyou canrotate thelever outwith out hittingthe

sideof theconsole.

3. If adjustment is needed put the seat in the rear slide position, tilt seat forward, remove seat

lanyardfrom seatframe, androtateseatforwardto reston theframe.

4.On theback ofthe consolewhere thespring isfastened. Loosen3/8” nutand boltenough to

allowthe bolt toslide inthe slot.(SeeFig. 5a)

5. Rotate the motion control lever out into the neutral slot. While the lever is swung out pull it

againstthe backedgeof theneutralslot. Holdingthelever adjustthespring byslidingtheboltin

the slot to remove all the slop and retighten the 3/8” nut and bolt.(Repeat steps on other side if

needed.)(See Fig. 5a)

6.Check youradjustmentby repeatingsteptwo.

7.If nomoreadjustmentisneeded refastenthe seatlanyardto theseat frame.

Figure 5a

(Leftside cutaway view)

Figure 5b

(Leftside cutaway view)

ADJUSTMENTS

MOTION CONTROL LINKAGE ADJUSTMENT:

1. This adjustment must be made with the drive wheels rotating. Raise rear of the unit and

block it up so the wheels are free to rotate. CAUTION:Keep hands, feet and clothing away

from rotating tires.

2.Tiltseat forwardand removethe seatlanyard fromseat sothe seatcan rotatedown ontothe

frame.Make surethe seat isadjusted towardthe rearof theunit soitclears thecontrols onthe

console.

3.Placea 2x4boardapproximately10to 12incheslongbetween thefootplateand thecenterof

theseat toengagethe seatsafety switch.NOTE:You maywantto coverthe endofthe 2x4with

arag toprotect theseatfrom marring.

4.Loosen thenuts directlybehind eachballjoint onboth rodsthat connectthe pumparmtothe

motion control assemblies. (See Fig 5b )

5.Starttheengine.Theparkbrakemustbe engagedandthemotioncontrolleversmustbeinthe

neutralslot (Seefigure6 page10)to starttheengine. Runengine atapproximately1/2throttle.

6.Releaseparkbraketoallowwheelstorotate.CAUTION:Keephands,feetandclothingaway

fromrotating tires.

7. Begin with either side and put the motion control lever into the neutral position. Adjust the

motion control linkage by rotating the double nuts on the rod in the proper direction until the

wheel stops rotating (See Fig 5b ).

Move the motion control lever forward then into the neutral position and place it into the

neutral slot. The wheel must be stopped completely at this point. Now do the same in reverse

and release the lever. The lever should return to neutral on its own. If not see reverse spring

detentadjustmentsection.

8.Run engineatfull throttletomake surewheelsdo notrotate.Readjust ifanyrotationoccurs.

9.Repeat onthe oppositeside andtighten nutsagainst balljoints.

10. Remove the 2x4 board and make sure the seat wiring is connected to the wiring harness.

WARNING: Seat must be connected for safety interlock system to properly function.

OPERATING INSTRUCTIONS

CONTROLS:

1. Be thoroughly familiar with all controls their function and how to operate them before

operating the mower.

2. Motion control levers located on each side of the console control direction of movement.

The left lever controls the flow of oil from the left hydro pump to the left wheel motor. The right

lever controls the flow of oil from the right hydro pump to the right wheel motor.

OPERATING INSTRUCTIONS

NOTE: To begin motion the operator must be in the seat and the brake disengaged before

the levers can be moved from the neutral slots or the engine will kill.

By moving the levers an equal amount forward or back the mower will move in a straight line

in that direction.

Movement of the right lever forward will cause the right wheel to rotate in a forward direction.

Movement of the left lever forward will cause the left wheel to rotate in a forward direction. To

stop forward travel pull levers back into the neutral position.

To turn right while moving in a forward direction pull the right lever back towards the neutral

position, this will slow the right wheel and cause the mower to turn in that direction.

To turn left while moving in forward direction pull the left lever back towards the neutral

position, this will slow the left wheel and cause the mower to turn in that direction.

To zero turn pull one lever back beyond neutral while holding the other slightly ahead of

neutral. NOTE: The direction of the zero turn will be determined by which lever is pulled back

beyond neutral. Thus, left lever back, left turn and opposite for right turn. Use caution when

using this maneuver unit can spin very rapidly if one lever is positioned too much

ahead of the other.

3. Blade engagement switch: Located on the console. Pull up on switch to engage blades,

push down to turn blades off. See page 3

4.Chokecontrol: Locatedontheconsole.Pushthethrottle controlallthewayforward.Usewhen

startingcold enginedo notrunchoke whenengine iswarm. Seepage 3

5. Throttle control: Located on the console. Used to control engine RPM. See page 3

6. Park brake: Located at the left end of the console. Pull lever back to engage the park

brake, push lever forward to release brake. NOTE: Use tie downs when transporting unit, the

park brake is not enough to hold the unit in place in this situation. See page 3

7. Key switch: Located on the console. The operator must be in the seat, park brake on,

motion control levers out in the neutral slots and blade switch off before engine will start. See

page 3

8. Fuel shut off valve: Located on the front of console at the top of the kick plate. The valve

has three positions left tank, right tank and straight down is the off position. See page 3

9.Pumprelease valves:Locatedat theback leftcorner ofthe pumps.Used torelease thesys-

temsounitmaybemovedbyhandwhennotrunning.Tilttheseatuptogainaccesstothe pumps.

Rotatevalve towardsthefront oftheunit toreleasethe systemusinga 5/8wrench.NOTE: Only

rotateabout a1/4 ofa turnto releasesystem.

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