1. Shut down the windrower, and remove the key from
the ignition.
2. Use a feeler gauge to measure the clearance between
the normal 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.
Figure 5.38: Normal 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 guide tip (B):
0.1–0.4 mm (0.004–0.016 in.)
•
At rear of guide (C):
0.1–1.0 mm (0.004–0.040 in.)
5. Adjust the clearance as follows:
a. Tighten nuts (D) until they are
fi
nger tight.
b. Turn the 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. Torque the nuts (D) to 72 N·m (53 ft·lbf) after all
the adjustments are complete and the speci
fi
ed
clearances are achieved.
Figure 5.39: Center Guard Hold-Down
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
insuf
fi
cient clearance.
NOTE:
Insuf
fi
cient hold-down clearance will result in
overheating of the knife and guards—readjust
as necessary.
Adjusting Hold-Downs with Stub Guards
WARNING
To avoid bodily injury or death from unexpected startup of machine, always stop engine and remove key
before making adjustments to machine.
214044
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Revision A