Checking and Adjusting Starter (Generator) Belt

  1. CAUTION: Rotating parts can catch fingers, loose clothing, or long hair. Wait for engine and all moving parts to stop before leaving operator’s station to adjust or service machine.

    Park the vehicle safely. (See Parking Safely in the SAFETY section.)

  2. Allow vehicle to cool completely.

  3. Raise and secure cargo box.

  4. MXAL47537
    MXAL47537-UN-12APR13

    Inspect starter (generator) belt (A) for wear or damage. Replace if needed. (See Replacing Starter (Generator) Belt next in this section.)



  5. Check belt tension by applying thumb force to starter (generator) belt halfway between belt pulleys. Belt inward deflection should meet specification.

    ItemMeasurementSpecification
    Starter (Generator) Belt Tension40 N (9 lb)
    Starter (Generator) BeltDeflection (approximate)4 mm (5/32 in.)

  6. Adjust belt deflection if necessary:

    • Remove nuts (B) and starter (generator) cover (C) from drive belt area.
    • MXAL47538
      MXAL47538-UN-12APR13

      Loosen nuts on pivot bolts (D).

    • Loosen nut on adjusting bolt (E).
    • Move starter (generator) (F) upward to tighten belt or downward to loosen belt. Hold starter (generator) in position, and tighten nuts on pivot bolts (D) to specification.

      ItemMeasurementSpecification
      Starter (Generator) Pivot BoltTorque73 N·m (54 lb-ft)

    • Tighten nut on adjusting bolt (E) to specification.

      ItemMeasurementSpecification
      Starter (Generator) Adjustment Bolt NutTorque37 N·m (27 lb-ft)

    • Check belt tension, and repeat procedure as necessary.
    • Install starter (generator) cover and nuts until snug. (To avoid damage to cover, do not over-tighten nuts.)



  7. Lower cargo box.

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