Replacing Mower Drive Belt (42A Mower)

1. Park machine safely. (See Parking Safely in SAFETY section.)

2. Allow engine and muffler to cool completely.

3. Remove mower deck.

4. 
   MXT015021-UN-27JUL15

   Remove sheave shield:

   1. Lift on lubrication port (A) to rotate left shield 90 degrees.

   2. Remove nuts (B) and belt cover assembly (C).

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5. Remove drive belt.

   
   MXT014299-UN-11JUN15

   1. Remove two cap screws (A) and belt guide (B).

   2. Rotate tension arm (C) and remove spring (D) from tension arm.

   3. Loosen hardware for two sheaves (E) to remove belt from guides (F).

   4. Remove mower belt.

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6. Inspect belt for wear or damage; replace as necessary.

7. Clean top surface of mower deck and sheaves.

8. Install belt on mower deck sheaves. Make sure that belt is in groove of each sheave, and on inside of guides at sheaves.

9. 
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   Install sheave shield:

   1. With cover (A) rotated up, install belt cover assembly (B) with two nuts (C).

   2. Tighten nuts to specification.

      Sheave Hardware	Torque	27 N·m (20 lb·ft)

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10. 
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    Install belt guide (A) with two cap screws (B).

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11. Tighten sheave hardware (C) to specification.

    Sheave Hardware	Torque	70.5 N·m (52 lb·ft)

12. Before installing deck, make sure tension spring (D) is installed. Rotate tension arm (E) clockwise and install spring into hole in tension arm.