Chopper Drive Speeds-Changing

CAUTION: Shut OFF engine, set parking brake and remove key.

NOTE: When changing chopper speeds make sure to cycle power ON and OFF. Combine will now recognize the new speed range.

Release chopper drive belt tension.

Pull arm (A) down, outward and up to release belt tension.

Install rubber strap (B) in slot to hold arm in the detensioned belt position.

A-Arm
B-Rubber Strap

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Release latch (A) and lift shield (B) over pins (C).

Remove pin (D) from shield (E) and remove shield from bracket (F).

For High Speed (2500 rpm):

Install belt on outside sheave grooves (G), idlers (H) and outside sheave grooves (I).

• Grain

For Low Speed (1600 rpm):

Install belt on inside sheave grooves (G), idlers (H), and inside sheave grooves (I).

• Corn

Install chopper shields.

Remove rubber strap from slot in arm and pull arm down to put tension on belt. Check belt idler tension spring to gauge. Washer on rear of spring should be even with gauge. Adjust as required.

A-Latch
B-Shield
C-Pins
D-Quick-Lock Pin
E-Shield
F-Bracket
G-Sheave
H-Idlers
I-Sheave

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