MAC215990
326
Revision A
Checking Center Hold-Down
–
Pointed Knife Guards
The pointed center knife guard hold-down prevent the center knife section on the cutterbar from lifting off of the guard,
while still allowing the knife to slide. The center hold-down will need to be inspected to ensure that there is adequate
clearance between the hold-down and the center knife section.
DANGER
To prevent bodily injury or death from the unexpected start-up of the machine, always stop the engine and remove the
key from the ignition before making adjustments to the machine.
WARNING
To prevent bodily injury from the fall of a raised reel, always engage the reel safety props before going under the
raised reel for any reason.
WARNING
Wear heavy gloves when working around or handling knives.
1.
Raise the reel fully.
2.
Shut down the engine, and remove the key from the ignition.
3.
Engage the reel safety props. For instructions, refer to
Engaging Reel Safety Props, page 37
.
4.
Open the endshield. For instructions, refer to
Opening Header Endshields, page 39
D
1028454
B
A
C
Figure 4.150: Pointed Center Hold-Down
5.
Rotate the flywheel attached to the knife drive box to
manually stroke the knife fully inboard until the knife
sections are under hold-down (A). Repeat this step to move
the other knife.
6.
Push down on the knife section with approximately 44 N
(10 lbf) of force, and use a feeler gauge to measure the
clearance between hold-down (A) and the knife section.
Ensure the clearance is as follows:
•
At tip (B) of hold-down: 0.1
–
0.5 mm (0.004
–
0.020 in.)
•
At rear (C) of hold-down: 0.1
–
1.0 mm (0.004
–
0.040 in.)
7.
If adjustment is required, refer to
Pointed Knife Guards, page 327
8.
If no adjustment is required, tighten nuts (D) to 85 Nm
(63 lbf·ft).
9.
Recheck clearance after tightening nuts, and adjust if
necessary.
10. Close the endshield. For instructions, refer to
