MAINTENANCE AND REPAIR INSTRUCTIONS
INSPECTING/REPLACING THE DRIVE BELT

When servicing the snow thrower use only original MTD replacement parts. Inspect the drive belt once a year or every 50 hours of operation, whichever comes first, for wear. If the drive belt needs to be replaced, use the following instructions.

1.Remove the flange lock nut from the belt case cover with a wrench or nut driver (Fig. 7).

2.Remove the seven (7) screws from the belt case cover using a #T20 Torx bit or flat blade screwdriver (Fig. 7).

Cover

Screws (7)

Belt Cover

Case

Flange Lock Nut

Fig. 7

3.Pull the belt tensioner (idler arm) away from the drive pulley. Remove the damaged or broken belt from the driven pulley and drive pulley inside of the housing (Fig. 8).

4.Loop the new belt around the drive pulley and driven pulley (Fig. 8). Pull the belt tensioner (idler arm) away from the drive pulley to install the belt around the drive pulley.

NOTE: Make sure the washer is still in place on the driven pulley shaft prior to reinstalling the belt case cover (Fig. 8).

Belt Tensioner

(Idler Arm)

Drive Pulley

Belt

 

Driven

Washer

Pulley

Fig. 8

5.Reinstall the cover with the seven (7) screws. To make installation easier, place the narrow part of the cover into the recess of the housing. Install the top two screws, then push the rest of the cover down into the recess and over the rotor shaft. Torque all seven (7) screws to 18-23 in•lb (2.0-2.5 N•m).

6.Install the flange lock nut. Torque the nut to 80-100 in•lb (9.0-11.2 N•m).

NOTE: If the flange lock nut is damaged, do not replace it with a standard nut. Replace only with an original MTD replacement part.

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