MAC215986
332
Revision A
WARNING
Stand to the rear of the knife during removal to reduce the risk of injury from cutting edges. Wear heavy gloves when
handling the knife.
NOTE:
For single knife headers, the knifehead is located on the left side of the knife. For double knife headers, there are two
knifeheads and they are located both right and left sides of the knife. Verify which knife needs to be removed before
beginning.
1.
Shut down the engine, and remove the key from the ignition.
2.
Open the endshield. For instructions, refer to
Opening Header Endshields, page 35
3.
Manually move the knife to the middle of its stroke range.
1029137
A
B
C
Figure 4.115: Knifehead
4.
Clean the area around the knifehead.
5.
Remove grease fitting (A) from the pin.
NOTE:
Removing the grease fitting will make it easier to reinstall
the knifehead pin later.
6.
Remove bolt and nut (B).
7.
Use a screwdriver or chisel in slot (C) to release the load on
the knifehead pin.
8.
Use a screwdriver or chisel to pry the knifehead pin
upwards in the pin groove until the knifehead pin is clear of
the knifehead.
1032830
A
B
C
Figure 4.116: Left Knifehead
9.
Push knife assembly (A) inboard until it is clear of drive
arm (B).
NOTE:
Frame and endshield parts have been removed from the
illustration to reveal the knifehead components.
10. Unless it is being replaced, seal knifehead bearing (C) with
plastic or tape to keep out dirt and debris.
11. Pull knife drive arm (B) to the outside position to give
clearance for the knife.
12. Remove knife (A).
