MacDon D50 - Knife Guards; Adjusting Knife Guards

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4.7.7 Knife Guards
Perform DAILY inspections to ensure the knife guards are aligned and the knife sections are contacting the shear surfaces
of the knife guards.
Adjusting Knife Guards
Bent knife guards may be able to be straightened with the optional guard straightening tool.
DANGER
To prevent injury or death from the unexpected start-up of the machine, always stop the engine and remove the key
from the ignition before leaving the operator’s seat for any reason.
NOTE:
Use guard straightening tool (MD #140135) available from your MacDon Dealer.
1. Shut down the engine, and remove the key from the ignition.
1001260
Figure 4.52: Upward Adjustment
2. Position the tool as shown, and pull up to adjust the guard
tips upwards.
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Figure 4.53: Downward Adjustment
3. Position the tool as shown, and push down to adjust the
guard tips downwards.
NOTE:
If you have trouble cutting tangled or fine-stemmed
material, replace the lower guards with stub guards and
install a knife hold-down on every guard. If the crop is
difficult to cut, install stub guards with top guards and
adjuster plates. A kit is available from your MacDon Dealer.
For information, refer to 5.2.3 Stub Guard Conversion Kit,
page 248.
MAINTENANCE AND SERVICING