MacDon 963 Harvest Header - Manual (Page 44)

43
MAINTENANCE/SERVICE
SICKLE AND SICKLE DRIVE (continued)
Sickle Sections
Check daily that sections are firmly bolted to the
sickle back and are not worn or broken. Replace
as required.
To replace sickle section:
1. A worn or broken sickle section (A) can be
replaced without removing sickle from
cutterbar.
2. Remove lock nuts and lift section off of bolts.
IMPORTANT: Do not mix heavy and light
sickle sections on same sickle.
3. Clean any dirt off of sickle back and position
new sickle section on bolts. Secure with lock
nuts.
To Remove Sickle
WARNING: Always stand to rear and
grasp rear edge of sickle during
removal to reduce risk of injury from
cutting edges. Wear heavy gloves
when handling sickle.
1. Clean area around sickle head. Stroke sickle to
its outer limit and remove bolt (A).
2. Insert screwdriver in slot (B) and pry up on
sickle head pin to free sickle.
NOTE: For ease of disassembly, remove
grease fitting from pin to release vacuum.
3. Stroke pitman arm to clear bearing in sickle
head. Insert sickle head pin in sickle head to
shield bearing from dirt and replace grease
fitting if removed.
4. Wrap a chain around sickle head and pull
sickle out.
NOTE: For two-piece sickles, remove bolts from
splice plate and pull sickle out from both ends.
5. If sickle is not being immediately reinstalled,
cover sickle head to shield bearing from dirt.
BOLT-ON SECTIONS
A
REMOVING SICKLE
(Shield removed for photo clarity)
A
B