MacDon CA25 OM - Manual (Page 140)

SECTION 8. MAINTENANCE AND SERVICING
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Revision B
L
d. Loosen two bolts (H) on sickle drive mounting
bracket.
e. Turn adjuster bolt (J) to loosen the two V-belts
(K), and remove belts.
f. Remove bolt in plate
(L) in left endsheet at
sickle drive box, and
remove plate. This
provides clearance
between pulley and
endsheet for the belt
when it is removed.
g. Slip timing belt off
sickle drive box pulley,
and route belt between
sickle drive box pulley and endsheet.
h. Remove belt from drive pulley.
Installation: Left End Timing Belt
a. Locate timing belt (M) onto drive pulley (N).
b. Route belt between sickle drive box pulley (O)
and endsheet, and locate on sickle drive box
pulley and over idler (P).
NOTE
When installing new belt, never pry
belt over pulley. Be sure adjusting
device is fully loosened, then tension
belt.
c. Position V-belts (K) onto drive pulleys.
d. Turn adjuster bolt (J) to move drive motor until
a force of 12 lbf (53 N) deflects V-belts (K)
1/8 in. (3 mm) at mid-span.
e. Tighten two bolts (H) on drive mounting
brackets.
(continued next page)
J
H
K
J
H
K
N
M
O
P