Tension Adjustment - Rh Sickle Drive Belts, A40-D; Removal - Rh Sickle Drive Belt, A40-D - MacDon A30-S Operator's Manual

Installation –LH Sickle Drive Belts, A40-D
(cont'd)
Double V-Belts
Install the sickle drive double V-belts (E) as
follows:
IMPORTANT
Belts are a matched set. Replace both
drive belts even if only one needs
replacing.
When installing new belt, never pry belt
over pulley. Be sure adjusting screw is
fully loosened, then tension belt.
IMPORTANT
To prolong belt and drive life, do not over-
tighten belts.
D
a. Slip belts onto pulleys (H) and (D).
b. Turn adjuster bolt (G) to move pulley (H) until a
force of 8-12 lbf (35-50 N) applied at mid-span to
each belt deflects each belt (E) 0.16 inch (4
mm).
c. Tighten jam-nut at (G) and three nuts (F).
d. Re-adjust tension of a new belt after a short run-
in period, (about 5 hours).
Form # 169000
MAINTENANCE/SERVICE
NOTE
H
F
G
7.8.11.4 Tension Adjustment - RH Sickle Drive
Belts, A40-D
To prolong belt and drive life, do not over-
tighten belts.
Adjust the RH sickle drive belt (A) tension as
follows:
C
a. Open RH end shield.
b. Loosen three nuts (B) and jam-nut on adjuster
bolt (C).
E
c. Turn adjuster bolt (B) to move pulley (L) until a
force of 5-6.5 lbf (22-30 N) deflects belt (A) 0.55
inch (14 mm) at mid-span.
d. Tighten jam-nut at (C) and three nuts (B).
e. Re-adjust tension of a new belt after a short run-
in period, (about 5 hours).
7.8.11.5 Removal – RH Sickle Drive Belt, A40-D
Remove the RH sickle drive belt (A) as follows:
a. Loosen three nuts (B) and jam-nut on adjuster
bolt (C).
b. Turn adjuster bolt (C) so that sickle drive belt (A)
can be slipped off pulley (L).
c. Remove bolt-in plate in LH end sheet at wobble
d. Slip belt off wobble box pulley and route belt
through this hole to remove it.
122
IMPORTANT
L
A
B
Model Year - 2009