Service And Adjustments - Husqvarna HU550FH / 961430096 Operator's Manual

SERVICE AND ADJUSTMENTS

CAUTION: TO AVOID SERIOUS INJURY, BEFORE PERFORMING ANY SERVICE OR ADJUSTMENTS:
1. Release control bar and stop engine.
2. Make sure the blade and all moving parts have completely stopped.
3. Disconnect spark plug wire from spark plug and place where it cannot come in contact with plug.
LAWN MOWER
TO ADJUST CUTTING HEIGHT
See "TO ADJUST CUTTING HEIGHT" in the Operation
section of this manual.
REAR DEFLECTOR
The rear deflector, attached between the rear wheels of your
mower, is provided to minimize the possibility that objects
will be thrown out of the rear of the mower into the opera-
tor's mowing position. Replace the deflector if damaged.
TO REMOVE DRIVE BELT
(See Figs. 17 and 18)
1. Remove drive cover and belt keeper.
2. Remove belt from gearcase pulley.
NOTE: Before tipping lawn mower to remove drive belt,
empty fuel tank by running engine until fuel tank is empty.
3. Turn lawn mower on its side with air filter and car bu re-
tor down.
4. Remove blade and blade adapter.
5. Remove belt from engine pulley.
TO REPLACE DRIVE BELT
(See Figs. 18 and 19)
1. Place new drive belt on engine pulley, inside tabs of
belt retainer.
2. Route the other end of the new drive belt through hole
in housing.
3. Reinstall blade adapter and blade. The recommended
tightening torque is 35–40 ft. lbs. (47–54 Nm).
4. Return mower to upright po si tion.
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.
BLADE ADAPTER
BLADE
LOCK
WASHER
BLADE
HARDENED
BOLT WASHER
TRAILING EDGE
15
GEARCASE
BELT
FIG. 18
KEY CRANKSHAFT
CRANKSHAFT
FIG. 19
DRIVE
COVER
PULEY
BELT
KEEPER
KEY WAY
BELT
RETAINER