Inspecting Timing Belt

Inspecting Belt

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

2. Disconnect negative (-) battery cable.

3. 
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   Picture Note: Components removed for better view.

   Remove bolt (A) and slide coupler forward onto drive shaft (B).

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4. Move drive shaft away from engine.

5. 
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   Remove three Torx head screws (C) and belt cover (D).

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6. 
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   Engine shown removed from machine for better view.

   Loosen bolt (E) and bolt (F).

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7. Rotate alternator (G) and remove belt (H) from alternator pulley, water pump pulley (I), and crankshaft pulley (J).

8. 
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   Remove four bolts and water pump pulley (K).

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9. Remove bolt (L) and crankshaft pulley (M), use a puller if necessary.

10. 
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    Remove seven bolts (N) and timing belt cover (O).

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11. 
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    Inspect timing belt (P) for cracks, fraying, wear, or damage. If replacing timing belt is necessary, see the technical manual for your machine, or see your John Deere Dealer.

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12. Inspect tensioning pulley before reinstalling components.

Inspecting Tensioning Pulley

1. IMPORTANT: Avoid damage! Do not rotate belt or engine pulleys from the current position. There are timing marks on bottom and top of engine that aligns critical internal engine components.

   
   MXT016465-UN-13NOV15

   Loosen bolt (A) on tensioning pulley (B). Push tension arm (C) inward slightly to release tensioning pulley tension from timing belt. Rotate tensioning pulley (B) and check for any noise or if it is loose. If it is loose, tighten bolt on tensioning pulley to specification.

   Item	Measurement	Specification
   Tensioning Pulley Bolt	Torque	25 N·m (18 lb·ft)

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2. If tensioning pulley is noisy, remove bolt (A) and pulley (B).

3. Install tensioning pulley. Push tension arm in direction of arrow (D) until the gap between the tensioning pulley (B) and the bottom of the water pump housing is approximately 5 mm (0.2 in) (E) as shown.

4. Tighten bolt (A) to specification.

   Item	Measurement	Specification
   Tensioning Pulley Bolt	Torque	25 N·m (18 lb·ft)

5. Installation of components is the reverse order of removal.

6. Connect negative (-) battery cable.