MacDon 922 - Manual (Page 46)

Form # 46620 Issue 01/06 44
MAINTENANCE/SERVICE
SICKLE AND SICKLE DRIVE
WARNING: Keep hands clear of the
area between guards and sickle at all
times.
CAUTION: Wear heavy gloves when
working around or handling sickles.
Sickle Lubrication
Apply SAE 10 or equivalent light weight oil daily
(one or two drops per section) along entire length
of sickle.
NOTE: Do not oil sickle if operating in sandy
conditions. Oil will cause sand to adhere to sickle
components, resulting in excessive wear.
Units with stub guards - Keep adjuster screws and
top guard adjuster bar well-lubricated, especially
before storage to prevent corrosion.
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 (C).
2. Insert screwdriver in slot (B) and pry up on
sickle head pin to free sickle.
3. Stroke pitman arm to clear bearing in sickle
head. Insert sickle head pin in sickle head to
shield bearing from dirt.
4. Wrap a chain around sickle head and pull
sickle out.
5. If sickle is not being immediately reinstalled,
cover sickle head to shield bearing from dirt.
KEEP HANDS AWAY FROM SICKLE
BOLT-ON SECTIONS
A
OIL SICKLE DAILY EXCEPT
IN SANDY SOIL
REMOVING SICKLE
C
B