Replace Flywheel Shear Bolt—L1533 Only (If Equipped)

1. Needles must be in HOME position when replacing shear bolt. Using a substitute shear bolt can damage machine.

   Shear bolts are designed to fail under a predetermined load. Always replace shear bolts with recommended parts.

   
   E77559-UN-16DEC14

   
   E77560-UN-12NOV14

   A - Shear Bolt

   B - Bushing

   C - Nut

   D - Lubrication Fitting

   Stop PTO.

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2. Zero the hydraulic pressure in the machine.

3. Determine cause of shearing and correct:

   • Shear plane may be separated.
   • Shear bolt hub may be damaged around shear bolt hole (hole edges must be sharp).
   • Bushing may be worn.
   • Obstruction in bale chamber.
   • Needles in bale chamber.
   • Needles or feeder system is out of time.
   
   

4. Install new specified flywheel shear bolt (A) by aligning shear bolt hub with rear bushing (B) in back of flywheel. Install nut (C) to shear bolt (A) and tighten to specification.

   Flywheel Shear Bolt Nut	Torque	15 N·m (132 lb-in)

5. If needles are in bale chamber when bolt shears, return needles to HOME position by hand using flywheel.

6. Lubricate at lubrication fitting (D) on shear bolt hub after replacing shear bolt.

7. Start PTO and allow machine to build hydraulic bale pressure.