MacDon M205 Operators Manual - Manual (Page 272)

OPERATION
Displayed value (##.#) = draper speed (mph or km/h 18 ).
4. Press FAST (C) or SLOW (D) on the CDM until desired draper speed is displayed at (A).
4.6.7 Knife Speed
The ideal cutting speed of the knife should achieve a clean cut. Crop types and conditions usually influence
the knife and forward speeds.
Table 4.2 Knife Speed Table
Header Description Knife Speed
Minimum Maximum
Type Size (ft)
rpm 19 spm 20 rpm 19 spm 20
15 750 1500 950 1900
20 and 25 700 1400 850 1700
30 800 1600
Draper Double
Knife
35 700 1400
20 and 25 750 1500
30
600 1200
Draper Single
Knife
35 550 1100
700 1400
When the header is first 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 specified 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.
18. Depending on CDM programming.
19. Revolutions per minute - Speed of knife drive box pulley
20. Strokes per minute of knife (rpm x 2)
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