Replacing Blades

1. CAUTION: Before servicing machine, refer to PRACTICE SAFE SERVICE PROCEDURES at the beginning of this section.

   IMPORTANT: Operating with loose blade hardware will damage the blade holder and blades. Whenever the blades have been removed or replaced, blade hardware MUST also be replaced. Always use genuine John Deere parts. Check blade hardware torque after the first eight hours of operation.

   NOTE: Blade bolt loosening requires 1-1/2 in. socket with extension and a torque multiplier.

   
   W09193-UN-29NOV07

   Position to Loosen

   
   W09194-UN-29NOV07

   Position to Tighten

   
   W09204-UN-05DEC07

   A - Lock Nut

   B - Blade Bolt

   Manually rotate driveline to align blade hardware with access hole in top of deck. Position torque multiplier, as shown, to replace blades. Discard mounting hardware.

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2. Install new hardware and tighten lock nut to specification.

   Item	Measurement	Specification
   Blade Bolt Lock Nut	Torque	850 N•m (627 lb-ft)