Fine Cut Chopper Blades—Replacing and Configuration

H87281-UN-01AUG07

A - Lock Nut

B - Cap Screw

C - Washers

D - Bushings

Rotor shown illustrates blade replacement examples for both scoop and paddle blades. Always maintain original factory provided blade pattern.

Outer Blades

If removing blades or bushings for inspection purposes, be certain to reinstall blades on SAME support from which they were removed. This must be done to maintain balance. It is a good practice to mark each blade before removal.

Install new cap screws and lock nuts in the same direction as it was removed when installing or replacing blades.

Remove lock nut (A), cap screw (B), washers (C), and bushings (D).

Inspect and replace bushings if worn. Replace lock nuts and cap screws with new hardware.

Replace blades and bushings. Install cap screw, washers, and lock nut. Tighten nut to specification.

Chopper Blade Lock Nut	Torque	70 N·m (52 lb·ft)

H107307-UN-22MAR13

A—D - Paddle Blades

Chopper balance MUST be maintained. Replace BOTH blades on single support and BOTH blades on opposite support (180 degrees). Four blades MUST be installed to replace one broken blade, or all blades can be replaced at one time. This MUST be done to maintain balance.

If the blade (A) is broken, replace blades (A—D).

H98142-UN-21SEP10

A - Lock Nut

B - Cap Screw

C - Bushings

D - Bushings

If removing blades or bushings for inspection purposes, be certain to reinstall blades on SAME support from which they were removed. This must be done to maintain balance. It is a good practice to mark each blade before removal.

Install new cap screws and lock nuts in the same direction as it was removed when installing or replacing blades.

Remove lock nut (A) and cap screw (B).

Remove and inspect bushings (C and D).

Inspect and replace bushings if worn. Replace lock nuts and cap screws with new hardware.

Replace blades and bushings. Install cap screw and lock nut. Tighten nut to specification.

Chopper Blade Lock Nut	Torque	70 N·m (52 lb·ft)