Husqvarna ST724 owner manual Traction Drive Belt, To Replace Belts, Auger Drive Belt

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SERVICE AND ADJUSTMENTS

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.

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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Contents ST724 Safety Rules Before USECalifornia Proposition 65 Warning Table of Contents Owners InformationInternational Symbols III.1 IIIIII.4 III.5III.6 III.7 III -A III -BIII.9 III III.11 III.12III.13 III.1410III.15 III.17III.18 III.19III.20 III.21III.22 III.23III.24 III.25III.26 III.27 III.28 III.29III.30 III.31III.32 III.34Assembly Contents of Shipping Tools Required for Carton AssemblyTo Install the Crank Assembly To SET the Skid HeightTo Install the Shifter ROD To CHECK/ADJUST Clutch Control CablesTo Install Chute Assembly to Chute Flange To Install Remote Chute Deflector Lever KnobOperation Fill GAS To Stop EngineWarm Start Frozen Starter Snow Throwing TipsIf the starter is frozen and will not turn engine Maintenance General RecommendationsService and Adjustments To Adjust Skid HeightTo Adjust Scraper BAR To Adjust the Clutch Control CablesTo Adjust the Belt Guides Traction Drive BeltTo Replace Belts Auger Drive BeltTo Adjust the Friction Wheel To Replace Friction WheelTo Replace Auger Shear Bolt Drain Gasoline Outdoors Away from Fire or FlameTo Adjust Carburetor To Adjust or Replace the Spark PlugTo Adjust To ReplaceStorage Snow ThrowerTroubleshooting Points Trouble Cause CorrectionEngine Repair Parts Snow Thrower Model STFrame Repair Parts NUT, 1/2 Push onDrive Component Repair Parts Gear BOX Repair Parts Auger Housing Repair Parts 505497 504 506 532 500Discharge Chute Repair Parts Wheel Assembly Repair Parts 673 675 653 671 650 678 676 652 655 656 654 677Handles Repair Parts Control Panel Repair Parts 774 770 772 773 784 789 788 790View from Rear Tank DecalsChute Control ROD Repair Parts 856 854 855 850 860 863 861 875 872 864 873 866 874 867