Knifehead Shield - MacDon D65 Operator's Manual

Sheet metal hold-down:
9. Manually stroke knife to center section (A) under hold-
down (B) as shown.
10. Decrease clearance by turning bolt (C) clockwise to lower
front of hold-down. Clearance should be 0.1–0.6 mm
(0.004–0.024 in.).
11. Increase clearance by turning bolt (C) counterclockwise to
raise front of hold-down.
NOTE:
For larger adjustments, it may be necessary to loosen
nuts (D), turn adjuster bolt (C), and then retighten nuts.
12. Torque nuts (D) to 88 Nm (65 lbf·ft) after all adjustments
are complete and specified clearances are achieved. For
instructions, refer to Checking Stub Guard Hold-Downs,
page 151.
DANGER
Check to be sure all bystanders have cleared the area.
13. Complete hold-down adjustments, run header at low engine speed, and listen for noise caused by insufficient
clearance.
IMPORTANT:
Insufficient hold-down clearance will result in overheating of knife and guards—readjust as necessary.

5.5.8 Knifehead Shield

The knifehead shield attaches to the endsheet and reduces the knifehead opening to prevent cut crop from accumulating
in the knifehead cutout.
IMPORTANT:
Remove the shields when cutting with the cutterbar on the ground in muddy conditions. Mud may pack into the cavity
behind the shield which could result in knife drive box failure.
The shields and mounting hardware are available from your MacDon Dealer.
214327
MAINTENANCE AND SERVICING
Figure 5.53: Double-Knife Center Stub Guard
Figure 5.54: Stub Guard Sheet Metal Hold-Down
153
C
D
F
A
E
A
D
C
B
B
Revision B