Traction Drive Belt; To Replace Belts; To Adjust The Belt Guides - Husqvarna ST724 Owner's Manual

Press the auger drive lever. Check the tension on
the belt (opposite auger idler pulley). The belt
should deflect about 1/2" with moderate pressure
(See III.23).
NOTE: You may have to move the auger idler pulley
more than once to obtain the correct tension.
Replace the belt cover.
Check the clutch control cable adjustment.
Reconnect the spark plug wire.

TRACTION DRIVE BELT

The traction drive belt has constant spring pressure and
does not require adjustment.
Replace the traction drive belt if it is slipping (See To
Replace Belts paragraph in this section).

TO REPLACE BELTS

The drive belts on this snow thrower are of special
construction and should be replaced with original equip-
ment belts available from your nearest authorized ser-
vice representative. A distributor's list is on the inside
back cover of this manual.
You will need the assistance of a second person while
replacing the belts.
Drain the gasoline from the fuel tank by removing the fuel
line. Drain the gas and reinstall the fuel line.
DRAIN THE GASOLINE OUTDOORS,
AWAY FROM FIRE OR FLAME.
AUGER DRIVE BELT
If your snow thrower will not discharge snow, and the
auger drive belt is damaged, replace it as follows:
Disconnect the spark plug wire.
Remove the belt cover (See III.25).
Loosen the belt guides (See III.24) and pull away
from the engine drive pulley.
Loosen the nut on the idler pulley (See III.24) and
pull idler pulley away from the belt.
Remove belt from engine drive pulley.
Remove top two bolts securing auger housing to
motor mount frame. Loosen bottom two bolts (III.27).
Auger housing and motor mount frame will separate,
hinged by bottom two bolts.
Remove old belt from the auger drive pulley.
Install new replacement belt of the same type onto
the auger pulley.
Position belt onto engine drive pulley.
Adjust the auger drive belt (See To Adjust Auger
Drive Belt paragraph in this section).
Adjust the belt guides (See To Adjust The Belt
Guides paragraph in this section).
Replace top two bolts. Re-tighten bottom two bolts.
SERVICE AND ADJUSTMENTS
Reinstall the belt cover.
Check the clutch control cable adjustment (See To
Adjust The Clutch Contrl Cables in this section).
Reconnect the spark plug wire.
TRACTION DRIVE BELT
(See III.24)
If your snow thrower will not move forward, check the
traction drive belt for wear. (Check other causes also
in the Trouble Shooting Points section). If the traction
drive belt needs to be replaced, proceed as follows:
Disconnect the spark plug wire.
Remove the belt cover. (See III.25)
Loosen belt guides and pull guides away from the
engine drive pulley. (See III.24)
Loosen nut on auger idler and pull auger idler pulley
away from belt.
Remove auger drive belt from engine pulley.
Pull the traction drive belt idler pulley away from the
drive belt.
Remove drive belt.
Position new replacement belt of the same type onto
traction pulley.
Pull idler pulley away from belt, allowing belt to be
positioned onto engine pulley.
Release idler pulley. Ensure idler pulley is properly
engaged with belt.
Adjust belt guides and tighten the mounting screws
(See To Adjust The Belt Guides paragraph in this
section).
Reinstall the belt cover.
Reconnect the spark plug wire.

TO ADJUST THE BELT GUIDES

There are two belt guides on your sonw throwr, a left and
right. After you replace the tracton drive belt, you need
to adjust one or both of the belt guides. Proceed as
follows for each belt:
Disconnect the spark plug wire.
Remove the belt cover.
Engage the auger drive clutch lever.
Measure the distance between the belt guides and
the belt (See III.26). The distance should be 3/32" for
each guide.
If adjustment is necessary, loosen the belt guide
mounting bolts. Move the belt guides to the correct
position. Tighten the mounting bolts.
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