To Replace Drive Belt; Service And Adjustments - Husqvarna HU725AWD Operator's Manual

SERVICE AND ADJUSTMENTS

8. Remove front belt keeper.
9. Remove belt from front gearcase pulley.
10. Remove all three idler pulleys from idler assembly.
11. Remove belt from blade adapter/engine pulley and
idler assembly.
12. Remove rear gearcase pulley by clamping locking
pliars to input shaft (beneath pulley) and loosening
pulley with a 9/16" box wrench.
13. Remove old belt from mower and discard.
TO REPLACE DRIVE BELT (See Figs. 18 & 19)
NOTE: Always use factory approved belt to assure proper
fi t and long life.
1. Place new belt on rear gearcase pulley. Be sure the
new belt is inside the tabs of the belt keeper.
2. Reinstall rear gearcase pulley.
3. Route the other end of the new belt through hole in
housing to front gearcase pulley.
4. Route new belt through idler assembly to blade adapter/
engine pulley.
REAR
GEARCASE
PULLEY
REAR
GEARCASE
BELT
KEEPER
BELT
RETAINER
BLADE ADAPTER /
ENGINE PULLEY
KEY
INPUT RETURN
SHAFT SPRING
CRANK-
SHAFT
KEYWAY
5. Reinstall all three idler pulleys.
6. Position the blade adapter/engine pulley on the engine
crank shaft. Be sure key in blade adapter/engine pulley
and crankshaft keyway are aligned; and that the new
belt is inside the tab of the belt retainer.
7. Install new belt on front gearcase pulley.
8. Reinstall front belt keeper. Be sure the new belt is
inside the front belt keeper.
9. Reinstall drive cover.
10. Reattach cable to rear gearcase.
11. Reattach return spring to rear baffl e / rear gearcase
belt keeper.
12. Reinstall rear baffl e.
13. Reinstall debris shield.
14. Reinstall blade. The recommended tightening torque
is 35–40 ft. lbs.
15. Return mower to upright po si tion.
16. Reattach spark plug wire to spark plug.
CABLE
IDLER
ASSEMBLY
IDLER
PULLEYS
FIG. 19
16
FRONT
TABS
BELT
FRONT BELT
KEEPER
FRONT
GEARCASE
PULLEY