Sharp 21F-A30 Manuel de l'opérateur télécharger pdf (Page 133)

MAINTENANCE AND SERVICING

Form 169000 / 169040 131 Revision C

7.8.10 Sickle Drive Belts: A30-D

7.8.10.1 Tension Adjustment: LH Sickle Drive

Timing Belt, A30-D

IMPORTANT

To prolong belt and drive life, do not over-

tighten belts.

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. Open LH endshield.

b. Loosen three nuts (B).

c. Loosen jam-nut on adjuster bolt (C).

d. 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.

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

f. Close endshield.

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

run-in period, (about 5 hours).

7.8.10.2 Removal: LH Sickle Drive Belts, A30-D

a. Open LH endshield.

b. Loosen nut (E) on idler sprocket.

c. Turn adjuster bolt (F) to loosen chain so that it

can be removed from large sprocket (G).

d. Loosen nuts (H) and jam-nut on adjuster bolt (J).

e. Turn adjuster bolt (J) to loosen V-belts (K) so

that belts can be slipped off pulley (D).

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Sharp 21F-A30 Manuel de l'opérateur Page 133