MacDon CA25 OM - Manual (Page 144)

SECTION 8. MAINTENANCE AND SERVICING
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Revision B
8.9.10 Sickle Drive Box
CAUTION
To avoid personal injury, before servicing
machine or opening drive covers, follow
procedures in Section 8.1 PREPARATION
FOR SERVICING.
8.9.10.1 Mounting Bolts
Check four sickle drive box mounting bolts (B)
torque after the first 10 hours operation, and
every 100 hours thereafter. Torque should be
200 ft·lbf (270 N·m).
8.9.10.2 Sickle Drive Box Removal
a. Loosen sickle drive belt, and slip it off sickle
drive box pulley. Refer to Section 8.9.8 Sickle
Drive Belts: Non-Timed Drive.
b. Remove sickle head pin. Refer to Section 8.9.2
Sickle Removal, steps a. and b.
c. Remove bolt (A) from pitman arm.
d. Remove pitman arm from sickle drive box shaft.
e. Remove bolts (B) attaching sickle drive box to
frame.
IMPORTANT
Do NOT remove or loosen locating
tab (C). This is a factory
adjustment.
f. Remove sickle drive box.
8.9.10.3 Pulley Removal
a. Loosen nut and bolt from pulley.
b. Remove pulley using a 3-jaw puller.
8.9.10.4 Pulley Installation
a. Remove any rust or paint from shaft and pulley
splines. For replacement parts, remove
oil/grease with degreasing agent.
b. Apply Loctite ® #243 adhesive (or equivalent) to
spline. Apply in two bands around shaft as
shown, with one band at end of spline, and one
band approximately mid-way.
c. Install pulley on shaft until flush with end of
shaft, and secure with bolt and nut. Torque bolt
to 160 ft·lbf (217 N·m).
A
B
C