215651
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Revision B
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Figure 5.38: Standard Guard Hold-Down
2.
Use a feeler gauge to measure the clearance between the
standard guard hold-down (A) and the knife section. Ensure
the clearance is 0.1
–
0.6 mm (0.004
–
0.024 in.).
3.
To lower the front of the hold-down and decrease
clearance, turn bolt (B) clockwise; to raise the front of the
hold-down and increase clearance, turn bolt (B)
counterclockwise.
NOTE:
For larger adjustments, it may be necessary to loosen
nuts (C), turn adjuster bolt (B), and then retighten nuts.
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Figure 5.39: Center Guard Hold-Down
4.
Use a feeler gauge to measure the clearance between the
center guard hold-down (A) and the knife section. Ensure
the clearance is between the following measurements:
•
At hold-down tip (B):
0.1
–
0.4 mm (0.004
–
0.016 in.)
•
At rear of hold-down (C):
0.1
–
1.0 mm (0.004
–
0.040 in.)
5.
Adjust the clearance as follows:
a.
Tighten nuts (D) until finger tight.
b.
Turn three adjuster bolts (E) clockwise to raise the
front of the hold-down and increase clearance, or
counterclockwise to lower the front of the hold-down
and decrease clearance.
c.
When all the adjustments are complete and the
specified clearances are achieved, torque nuts (D) to
88 Nm (65 lbf
∙
ft).
WARNING
Check to be sure all bystanders have cleared the area.
6.
Complete the hold-down adjustments, run the header at low engine speed, and listen for noise caused by insufficient
clearance.
IMPORTANT:
Insufficient hold-down clearance will result in overheating of the knife and guards
—
readjust as necessary.
Checking and Adjusting Hold-Down at Double-Knife Center Pointed Guard
To adjust the hold-down at the double-knife center pointed guard, follow the recommended adjustment procedure
provided here.
DANGER
To prevent bodily injury or death from the unexpected startup of the machine, always stop the engine and remove the
key before adjusting the machine.
1.
Shut down the engine, and remove the key from the ignition.
