Replacing Mower Drive Belt (42 Mower)

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

2. Allow engine and muffler to cool completely.

3. Remove machine shields. (See Removing and Installing Machine Shields in the SERVICE MOWER section.)

4. Remove mower deck.

5. 
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   Remove drive belt:
   • Remove deck shields.
   • Loosen hardware for two sheaves (A) to remove belt from belt guides (B).
   • Remove two bolts for belt guide (C).
   • 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 as shown. Make sure belt is in the groove of each sheave, and on the inside of the guides at sheaves (B).

9. Install belt guide (C) and secure with two bolts.

10. 
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    Be sure belt guides (B) are in the rounded groove of deck bracket (D) and tensioning bracket (E).

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11. Tighten sheave hardware to specification.

    Item	Measurement	Specification
    Sheave Hardware	Torque	54 N·m (40 lb.-ft.)

12. Ensure tension spring (F) is installed. Rotate tension arm (G) clockwise and install spring onto bottom square hole in tension arm.

13. Install deck shields.

14. Install deck on machine.