Servicing the Troy-Bilt Wide Cut 33” Combination Mower
3
1.4.
Using a 9/16 inch socket and opened end
wrench, remove the front idler pulley to allow the
belt to be removed from around the pulley. See
Figure 8.
NOTE:
Maintain correct order of parts.
1.5.
Using a 9/16 inch socket and opened end
wrench, remove the rear idler pulley to allow the
belt to be removed from around the pulley. See
Figure 8.
NOTE:
Maintain correct order of parts. The pul-
ley mounts to the front hole in the idler arm.
1.6.
Drop the belt off the engine pulley.
1.7.
Replace the belt and assemble in the reverse
order.
NOTE:
Maintain orientation of belt guides during
reassembly. See Figure 8.
Figure 8
Front Idler Pulley
Rear Idler Pulley
Idler Pulley Mounting Bracket
2.
DECK IDLER PULLEY INSPECTION
2.1.
Using a 9/16 inch socket and opened end
wrench, remove the front and rear deck idler pul-
leys and inspect for wear.
NOTE:
There is a pyramid washer under the
front mounting bracket that helps maintain the
position of the front idler pulley. See Figure 9.
3.
BLADE DRIVE BELT ADJUSTMENT
3.1.
Using a ½ inch socket remove the four screws
securing the belt cover and remove the cover.
3.2.
With mower on level ground, adjust the blade
cutting height to about 3”.
3.3.
With the blade drive control disengaged, set a
gap of 1/8” between the spring and the flat
washer on the end of the threaded portion of the
lift crank by adjusting the nut. See Figure 10.
Figure 9
Rear Idler Pulley
Front Idler Pulley
Nut
Nut
Lock Washer
Lock Washer
Flat Washers
Flat Washer
Pyramid Washer
Hex Head
Hex Head
Belt Guide
Belt Guide
Bracket Position
Bracket Position
Cap Screw
Cap Screw
Figure 10
1/8” Gap
Summary of Contents for 12A-E753B063
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