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

    GXT002326
    GXT002326-UN-06JUL15

    Remove spring (A) from tension arm.



  5. Disconnect spindle cover torsion spring (B) from wire form.

  6. GXT002327
    GXT002327-UN-06JUL15

    Lift left spindle cover. Align keyway in shield (C) with stake in wire form (D), and slide spindle cover (E) off wire form.



  7. Repeat step 4, 5, and 6 to remove right spindle cover.

  8. GXT002328
    GXT002328-UN-06JUL15

    Remove nut (F) on tension arm and lift sheave (G) up to remove belt from guide (H).



  9. Remove belt from deck and inspect for wear or damage; replace as necessary.

  10. Clean top surface of mower deck and sheaves.

  11. Install belt on mower deck as shown.

  12. GXT002329
    GXT002329-UN-06JUL15

    Shown without sheave for clarity only.

    Make sure sheave carriage bolt (I) is fully seated into tension arm (J). Install sheave with belt on tension arm.



  13. Tighten sheave hardware to specification.

    ItemMeasurementSpecification
    SheaveTorque47 N·m (35 lb·ft)

  14. Make sure that belt is properly seated on all sheaves.

  15. Install left and right spindle covers on wire forms.

  16. Install spring on tension arm.

  17. Install mower deck.

MX52301,0000F08-19-20160329