Chopper Drive Speeds—Changing

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

H87258
H87258-UN-22JAN07

H89504
H89504-UN-08AUG07

A - Arm

B - Bracket

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

Lift and place arm in slot on bracket (B) to hold in detensioned position.

H72013
H72013-UN-30APR02

H71849
H71849-UN-30APR02

H71850
H71850-UN-30APR02

A - Latch

B - Shield

C - Pins

D - Quick-Lock Pin

E - Shield

F - Bracket

G - Sheave

H - Idlers

I - Sheave

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.

OUO6075,0000885-19-20070808