MacDon A40-D - Manual (Page 121)

SECTION 7 MAINTENANCE AND SERVICING
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119
Revision E
7.8 SICKLE AND SICKLE DRIVE
CAUTION
To avoid personal injury, before servicing
header/mower conditioner or opening drive
covers, follow procedures in Section 7.1
PREPARATION FOR SERVICING.
CAUTION
Wear heavy gloves when working around or
handling sickles.
WARNING
Keep hands clear of the area between guards
and sickle at all times.
7.8.1 Sickle Section Replacement
Check daily that sections are firmly bolted to the
sickle back, and are not worn or broken.
Replace as required. A worn or broken sickle
section can be replaced without removing sickle
from cutterbar.
a. Stroke sickle as required to expose sickle
sections.
b. Remove lock nuts (A), and lift section (B) off of
bolts.
IMPORTANT
Do not mix heavy and light sickle sections
on same sickle.
c. Clean any dirt off of sickle back, and position
new sickle section on bolts.
d. Secure with lock-nuts, and tighten to required
torque.
7.8.2 Sickle Removal
WARNING
Stand to rear of sickle during removal to
reduce risk of injury from cutting edges.
Wear heavy gloves when handling sickle.
a. Stroke sickle to its outer limit.
b. Clean area around sickle head, and remove nut
and bolt (C).
c. Remove grease zerk from pin (D).
d. Insert screwdriver in groove of pin (D), and pry
up on sickle head pin to free sickle. Pin does
not have to be removed from arm.
e. Pull sickle out.
f. Cover sickle head to shield bearing from dirt.
C
D
A
B