Sharp 21F-A30 Manual del operador descargar pdf (Pagina 135)

MAINTENANCE AND SERVICING

Form 169000 / 169040 133 Revision C

7.8.10.3 Installation: LH Sickle Drive Belts,

A30-D

CAUTION

Stop engine, and remove key from ignition

before leaving Operator's seat for any

reason. A child or even a pet could engage

an idling machine.

a. Route sickle drive belt (A) through opening in

end sheet onto wobble box pulley and sickle

drive pulley (D) as shown.

NOTE

When installing new belt, never pry belt

over pulley. Be sure idler is fully

loosened, then tension belt.

IMPORTANT

To prolong belt and drive life, do not over-

tighten belts.

b. Turn adjuster bolt (C) to move pulley (D) until a

force of 5 - 6.5 lbf (22 - 30 N) deflects belt (A)

0.55 in. (14 mm) at mid-span.

c. Tighten jam-nut at (C) and three nuts (B).

d. Re-position V-belts (K) on pulley (D)

e. Turn adjuster bolt (J) to move drive pulley until a

force of 8 - 12 lbf (35 - 50 N) applied at mid-span

on each belt (K) deflects each belt 0.16 in.

(4 mm).

f. Tighten jam-nut at (J) and three nuts (H).

g. Re-position chain on large sprocket (G).

h. Turn adjuster bolt (F) to tighten chain to give

(5 mm) slack at mid-span. Tighten nut (E) on

idler sprocket.

i. Rotate auger and check chain for slack at

tightest point. Re-adjust position of idler

sprocket to achieve required slack.

j. Install bolt-in plate in LH end sheet at wobble

box, and close endshield.

k. Re-adjust tension of a new belt after a short

run-in period, (about 5 hours).

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Sharp 21F-A30 Manual del operador Pagina 135