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10

3.      Be sure the trailing edge of blade (opposite sharp edge) 

is up toward the engine.

4.      Install the blade bolt with the lock washer and hard ened 

washer into blade adapter and crank shaft.

5.   Use block of wood between blade and lawn mower 

housing and tighten the blade bolt, turning clock wise.

•      The recommended tightening torque is 35-40 ft. lbs.  

IMPORTANT:  BLADE BOLT IS HEAT TREATED.  IF BOLT NEEDS 
REPLACING, REPLACE ONLY WITH APPROVED BOLT.

MAINTENANCE

LAWN MOWER

Always observe safety rules when performing any main-
 te nance.

TIRES

•      Keep tires free of gasoline, oil, or insect control chem-

 i cals which can harm rubber.

•      Avoid  stumps,  stones,  deep  ruts,  sharp  objects  and 

other hazards that may cause tire damage.

DRIVE WHEELS

Check front drive wheels each time be fore you mow to be 
sure they move freely.

The wheels not turning freely means trash, grass cuttings, 
etc. are in the drive wheel area and must be cleaned to 
free drive wheels.

If necessary to clean the drive wheels, be sure to clean 
both front wheels.

1.    Remove hubcaps, locknuts and washers.

2.    Remove wheels from wheel ad just ers.

3.   Remove any trash or grass cuttings from inside the 

dust cover, pinion and/or drive wheel gear teeth.

4.    Put wheels back in place.

NOTE:  If after cleaning, the drive wheels do not turn freely, 
contact a qualifi ed service center.

BLADE CARE

For best results, mower blade must be kept sharp.  Re place 
bent or dam aged blades.

CAUTION:  

Use only a replacement blade 

approved by the manufacturer of your 
mower.  Using a blade not approved 
by the manufacturer of your mower is 
hazardous, could damage your mower 
and void your warranty.

TO REMOVE BLADE (See Fig. 11)
1.    Disconnect spark plug wire from spark plug and place 

wire where it cannot come in contact with plug.

2.    Turn lawn mower on its side. Make sure air fi lter and 

carburetor are up.

3.    Use a wood block between blade and mower hous ing 

to prevent blade from turning when re mov ing blade bolt.

NOTE:  Protect your hands with gloves and/or wrap blade 
with heavy cloth.

4.    Remove blade bolt by turning counter-clockwise. 

5.      Remove blade and attaching hardware (bolt, lock wash er 

and hardened wash er).

NOTE:  Remove the blade adapter and check the key inside 
hub of blade adapter. The key must be in good condition to 
work properly. Replace adapter if dam aged.

TO REPLACE BLADE (See Fig. 11)
1.      Position the blade adapter on the engine crank shaft. Be 

sure key in adapter and crankshaft key way are aligned.

2.   Position blade on the blade adapter aligning the two 

(2) holes in the blade with the raised lugs on the 
adapter.

FIG. 11

BLADE
BOLT

HARDENED
WASHER

LOCK 
WASHER

BLADE ADAPTER

KEY

BLADE

TRAILING EDGE

CRANKSHAFT

KEY WAY

CRANKSHAFT

BELT

RETAINER

TO SHARPEN BLADE
NOTE:  We do not recommend sharp en ing blade - but if you 
do, be sure the blade is balanced.  An un bal anced blade 
will cause eventual damage to lawn mower or engine. 

•      The blade can be sharp ened with a fi le or on a grinding 

wheel. Do not attempt to sharpen while on the mower.

•     To check blade balance, drive a nail into a beam or 

wall. Leave about one inch of the straight nail ex posed. 
Place centre hole of blade over the head of the nail. 
If blade is balanced, it should remain in a horizontal 
position. If either end of the blade moves downward, 
sharpen the heavy end until the blade is balanced.

GRASS CATCHER

•      The grass catcher may be hosed with water, but must 

be dry when used.

•      Check your grass catcher often for damage or de te -

ri o ra tion.  Through normal use it will wear.  If catcher 
needs replacing, replace only with ap proved replace-
ment catcher shown in the Repair Parts section of this 
manual.  Give the lawn mower model number when 
ordering.

GEAR CASE 

•      To keep your drive system working properly, the gear 

case and area around the drive should be kept clean 
and free of trash build-up.  Clean under the drive cover 
twice a season.

•      The gear case is fi lled with lubricant to the proper level 

at the factory.  The only time the lubricant needs atten-
tion is if service has been performed on the gear case.

•     If lubricant is required, use only ELF Multis EP00.

Do not substitute.

Содержание XT721F

Страница 1: ...XT721F Owner s Manual 96143006200 2009 12 532 43 10 10 12 03 09 BY Printed in U S A ...

Страница 2: ...vices in place See manufacturer s instructions for proper operation and installation of accessories Only use accessories approved by the manufacturer Stop the blade s when crossing gravel drives walks or roads Stop the engine motor whenever you leave the equip ment before cleaning the mower or unclogging the chute Shuttheengine motor offandwaituntilthebladecomes to complete stop before removing gr...

Страница 3: ...aineropeningatalltimesuntilfuelingiscomplete Do not use a nozzle lock open device If fuel is spilled on clothing change clothing immedi ately Never overfill fuel tank Replace gas cap and tighten securely V GENERAL SERVICE Never run a machine inside a closed area Never make adjustments or repairs with the engine motor running Disconnect spark plug wire and keep wire away from plug to prevent accide...

Страница 4: ...carton thor ougly for additional loose parts HOW TO SET UP YOUR LAWN MOWER TO UNFOLD HANDLE See Figs 1 and 2 IMPORTANT UNFOLD HANDLE CAREFULLY SO AS NOT TO PINCH OR DAMAGE CONTROL CABLES 1 Raise handles until lower handle section locks into place in mowing position 2 Remove protective padding raise upper handle sec tion into place on lower handle and tighten both handle knobs 3 Remove handle paddi...

Страница 5: ...ENCE CONTROLBAR must be held down to the handle to start the engine Release to stop the engine STARTER HANDLE used for starting the engine HOUSING GRASS CATCHER DRIVE CONTROL LEVERS used to engage power pro pelled forward motion lawn mower MULCHER DOOR allows conversion to discharge or bagging operation OPERATOR PRESENCE CONTROL BAR STARTER HANDLE HANDLE KNOB These symbols may appear on your lawn ...

Страница 6: ...age drive wheels To keep drive control engaged when turning corners push down on the handle to lift the front wheels off the ground while turning lawn mower The operation of any lawn mower can result in foreign objects thrown into the eyes which can result in severe eye damage Always wear safety glasses or eye shields while operating your lawn mower or performing any adjustments or repairs We reco...

Страница 7: ...NE in the Mainte nance section of this manual CAUTION DO NOT overfill engine with oil or it will smoke heavily from the muffler on startup 1 Be sure lawnmower is level 2 Remove oil dipstick from oil fill spout 3 You receive a container of oil with the unit Slowly pour the entire container down the oil fill spout into the engine NOTE Initial oil fill requires only 18 oz due to residual oil in engin...

Страница 8: ...essary to raise the height of cut to reduce pushing effort and to keep from overloading the engine and leaving clumps of grass clippings It may also be necessary to reduce ground speed and or run the lawn mower over the area a second time For extremely heavy cutting reduce the width of cut by overlapping previously cut path and mow slowly For better grass bagging and most cutting conditions the en...

Страница 9: ...abuse or negligence To receivefullvaluefromthewarranty operatormustmaintain mower as instructed in this manual Some adjustments will need to be made periodically to properly maintain your unit At least once a season check to see if you should make any of the adjustments described in the Service and Ad justments section of this manual At least once a year replace the spark plug clean or replace air...

Страница 10: ...E Protect your hands with gloves and or wrap blade with heavy cloth 4 Remove blade bolt by turning counter clockwise 5 Removebladeandattachinghardware bolt lockwasher and hardened washer NOTE Removethebladeadapterandcheckthekeyinside hub of blade adapter The key must be in good condition to work properly Replace adapter if damaged TO REPLACE BLADE See Fig 11 1 Positionthebladeadapterontheenginecra...

Страница 11: ...ten under dusty conditions TO CLEAN AIR FILTER 1 Remove cover 2 Carefully remove cartridge 3 Clean by gently tapping on a flat surface If very dirty replace cartridge CAUTION Petroleumsolvents suchas kerosene are not to be used to clean cartridge Theymaycausedeterioration of the cartridge Do not oil cartridge Do not use pressurized air to clean or dry cartridge 4 Install cartridge then replace cov...

Страница 12: ...jury before performing any service or adjustments 1 Release control bar and stop engine 2 Makesurethebladeandallmovingparts have completely stopped 3 Disconnect spark plug wire from spark plug and place where it cannot come in contact with plug IN LINE FUEL FILTER See Fig 15 The fuel filter should be replaced once each season If fuel filter becomes clogged obstructing fuel flow to carburetor repla...

Страница 13: ...LACE DRIVE BELT See Fig 17 1 Place new drive belt on engine pulley inside belt re tainer 2 Route the other end of the new drive belt through hole in housing 3 Reinstall blade 4 Return mower to upright position 5 Install new belt on gearcase pulley 6 Reinstall belt keeper and drive cover NOTE Always use factory approved belt to assure proper fit and long life TO ADJUST HANDLE See Figs 18 and 19 The...

Страница 14: ...on from dust and dirt Cover your unit with a suitable protective cover that does not retain moisture Do not use plastic Plastic cannotbreathe whichallowscondensationtoformand will cause your unit to rust IMPORTANT NEVER COVER MOWER WHILE ENGINE AND EXHAUST AREAS ARE STILL WARM CAUTION Never store the lawn mower with gasoline in the tank inside a build ing where fumes may reach an open flameorspark...

Страница 15: ...ven 2 Wheel heights uneven 2 Set all wheels at same height 3 Buildup of grass leaves and trash under 3 Clean underside of mower housing mower Excessive 1 Worn bent or loose blade 1 Replace blade Tighten blade bolt vibration 2 Bent engine crankshaft 2 Contact a qualified service center Starter rope 1 Engine flywheel brake is on when control 1 Depress control bar to upper handle before hard to pull ...

Страница 16: ...has received a separate warranty with product at time of purchase SECTION 2 HUSQVARNA S OBLIGATIONS UNDER THE WARRANTY Husqvarna will repair or replace defective components without charge for parts or labor if a component fails because of a defect in material or workmanship during the warranty period SECTION 3 ITEMS NOT COVERED BY THIS WARRANTY The following items are not covered by this warranty ...

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