Adjusting Hold-Downs With Stub Guards - MacDon FlexDraper FD1 Series Operator's Manual

5. Double-knife center stub guard: Manually stroke
knife to locate sections under hold-down (B).
6. Measure clearance between knife sections (A) and (C)
with a feeler gauge. The clearance should be as
follows:
•
At hold-down tip (D): 0.1–0.4 mm
(0.004–0.016 in.)
•
At rear of hold-down (E): 0.1–1.0 mm
(0.004–0.040 in.)
7. If necessary, refer to
Guards, page 451.

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.
1. Shut down the engine, and remove the key from the
ignition.
2. Use a feeler gauge to measure the clearance between
the stub 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.)
3. Adjust the clearance as follows:
a. Tighten nuts (D) until they are finger tight.
b. To lower the front of the hold-down and decrease
clearance, turn the three adjuster bolts (E)
clockwise; to raise the front of the hold-down and
increase clearance, turn the adjuster bolts (E)
counterclockwise.
c. Torque the nuts (D) to 72 Nm (53 lbf∙ft) after all the
adjustments are complete and the specified
clearances are achieved.
WARNING
Check to be sure all bystanders have cleared the area.
214683
MAINTENANCE AND SERVICING
Adjusting Hold-Downs with Stub
E
Figure 5.110: Double-Knife Center Stub Guard
Hold-Down
E
Figure 5.111: Stub Guards
451
B
A
D
C
A
D
C
B
Revision A