To Replace Drive Belt - Husqvarna HU725AWDH Operator's Manual

SERVICE AND ADJUSTMENTS
5. Disconnect return spring from rear baffle / rear gearcase
belt keeper.
6. Disconnect cable from rear gearcase.
7. Remove drive cover.
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. 19 & 20)
NOTE: Always use factory approved belt to assure proper
fit 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 beltthrough idler assemblyto blade adapter/
engine pulley.
5. Reinstall all three idler pulleys.
6. Position the blade adapter/engine pulley on the engine
crankshaft. 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 baffle / rear gearcase
belt keeper.
12. Reinstall rear baffle.
13. Reinstall debris shield.
14. Reinstall blade. The recommended tightening torque
is 35-40 ft. Ibs.
15. Return mower to upright position.
16. Reattach spark plug wire to spark plug.
REAR iNPUT RETURN
GEARCASE SHAFT
REAR
GEARCASE
BELT
KEEPER
\
\,
BELT \
RETAINER \
\
\
BLADE ADAPTER
LEY
/
/
\
'\
/
/
/
\
\,\
\\
\\
/
/
/\
\
\
\
CRAN_
SHAFT
KEYWAY
IDLER \.
ASSEMBLY \
/
/
\
\ TABS
\ \ BELT
/ /
/
/
/
/ /
/
/
// j
J FRONT BELT
KEEPER /
J
\
\
FRONT
GEARCASE
PULLEY
FIG. 20
16