MacDon M155 Operators Manual - Manual (Page 264)

OPERATION
4.9 Disc Speed
Disc speed is ideal when a clean cut is achieved. Crop types and conditions usually influence the disc and
forward speeds.
When the windrower is first attached to the header, the windrower control module (WCM) reads a code from the
header determining the speed range and minimum speed.
The desired speed is programmed on the cab display module (CDM) and stored in the WCM memory so the discs
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 disc speed reverts to a preset range that
can be changed by the Operator.
Refer to the header operator’s manual for the suggested disc speed for a variety of crops and conditions.
4.9.1 Setting Disc Speed
Figure 4.299: Operator Console
A - Display B - Header Index C - Fast
D - Slow E - Display Selector
CAUTION
Check to be sure all bystanders have cleared the area.
Display and set the desired disc speed as follows:
1. Engage header.
2. Set HEADER INDEX switch (B) to OFF.
3. On ground speed lever (GSL) press FAST (C) or SLOW (D) until desired disc speed is displayed at (A).
Display (A) shows #### DISC RPM.
#### = RPM
169883
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Revision A