MacDon M155, Operator'S Manual

Page: 316 / 510

OPERATION
4.7.3 Knife Speed
The ideal knife cutting speed should achieve a clean cut. Crop types and conditions usually in fl uence the knife
and forward speeds.
When the header is fi rst attached to the windrower, the windrower control module (WCM) receives a code from the
header that determines the knife speed range and the minimum speed.
The desired speed can be programmed on the cab display module (CDM) and stored in the WCM memory so the
knife will operate at the original set-point after the header is detached and reattached to the windrower.
If no header code is detected, the CDM displays NO HEADER and the knife speed reverts to the Operator’s selection
from a range of 800–1000 strokes per minute.
Refer to the header operator’s manual for the suggested knife speed for a variety of crops and conditions.
NOTE:
The knife speed cannot be programmed outside the range speci fi ed for each header.
NOTE:
The knife speed can be adjusted without shutting down the machine, though it is recommended that the
windrower be stopped before adjusting CDM settings.
Setting Knife Speed “On the Go”
Figure 4.301: Operator Console
CAUTION
Check to be sure all bystanders have cleared the area.
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