Troy-Bilt 12A-E753B063, Service Manual

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Servicing the Troy-Bilt Wide Cut 33” Combination Mower
7
6.4. Using a socket remove the Sems nuts and flat
head screws securing the brake pad to the idler
arm and remove the old brake pad. See Figure
21.
6.5. Loosely install the new brake pad.
6.6. Release the operator presence control and allow
the new brake pad to engage the sheave of the
idler pulley. See Figure 22.
6.7. Tighten the Sems nut to secure the brake pad to
the idler arm.
7. WHEEL DRIVE BELT REMOVAL AND
REPLACEMENT.
NOTE: Some older units may not have all the
belt guides installed.
7.1. Release all mower controls.
Figure 21
Brake Pad
Sems Nuts
Figure 22
Brake pad seats into sheave
7.2. Using a ½ inch socket, remove the two screws
attaching the flap bracket to the frame. Remove
the flap bracket. See Figure 23.
7.3. Using a ½ inch socket remove the four screws
securing the belt cover and remove the cover.
7.4. Temporarily remove the blade drive belt from
around the engine pulley.
7.5. Use a 9/16 inch socket to loosen the locknut
securing the pulley and belt guide to the front
idler bracket. Remove the belt guide and pulley.
See Figure 24.
NOTE: Maintain correct order of parts:
- Pulley
- Washer
- Belt Guide
- Nut
Figure 23
Flap Bracket
Screws
Figure 24
Front Idler Bracket Pulley
Engine Pulley
Trans. Pulley
Backside Idler Pulley
Trans. Pulley Belt Guide Cap Screw