Replacing Mower Drive Belt (48A and 54A Mower)

Replacing Primary Belt

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

2. Allow engine and muffler to cool completely.

3. Lower mower deck.

4. CAUTION: Avoid Injury! Component is spring-assisted and under tension. Injury can occur if spring-assisted component is released suddenly.

   
   MXT014285-UN-27MAY15

   48A Shown

   Using a 3/8 in. ratchet, rotate and hold tension arm (A), under right side of fender deck, forward, while removing mower belt (B) from engine sheave (C).

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5. Clean belt with a clean cloth.

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

7. Install belt on mower sheave and engine sheave.

8. Rotate tension arm toward rear of machine to tighten drive belt.

Replacing Secondary Belt

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 shields

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

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

   3. Repeat for other side.

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5. CAUTION: Avoid Injury! Components are installed under spring tension. Wear eye protection and use proper tools when installing and removing components with spring tension.

   
   MXT014301-UN-07JUL15

   48A Shown

   Using a 3/8 in. ratchet, rotate and hold tension arm (A), forward, while removing mower belt (B) from deck sheaves (C).

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

7. Clean top surface of mower deck and sheaves.

8. Reinstall belt on mower deck.

9. 
   MXT015024-UN-29JUN15

   Install Sheave Shields

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

   2. Tighten nuts to specification.

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

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10. Install mower deck.