MacDon D60 Draper Headers - Manual (Page 42)

SECTION 7. OPERATION
Form 169441 40 Revision B
7.12.6 DRAPER SPEED
a. The draper speed is controlled with the windrower
CDM (Cab Display Module). Refer to your Self-
Propelled Windrower Operator’s Manual.
b. Adjust draper speed to achieve good feeding of
crop onto adapter draper. Excessive draper
speed will reduce draper life.
NOTE
If sufficient draper speed cannot be
achieved, a possible cause is low relief
pressure. Refer to the Technical
Service Manual for checking and
adjusting relief pressure.
7.12.7 KNIFE SPEED
The header sickle drive is driven by the
windrower hydraulic pump and is controlled with
the windrower CDM.
The default speed is 600 revolutions per minute
(rpm). Refer to your Self-Propelled Windrower
Operator’s Manual.
7.12.7.1 Knife Speed Guidelines
Header Size
Recommended Knife
Speed Range (RPM)
SK
(Single Knife
Header on SP
Windrower)
DK
(Double Knife
Header on SP
Windrower)
15 FT. --- 750 - 950
20 and 25 FT. 600 - 750 700 - 850
30 FT. 600 - 700 600 - 800
35 FT. 550 - 650 600 - 750
40 FT. 525 - 600 550 - 700
Refer to the following charts for guidelines on the
recommended knife speeds to suit a particular
crop.
A chart is provided for each header size or range
of sizes and whether the header is a single (SK)
or double knife (DK) machine.
Refer to examples below each chart.
15 Foot Double Knife
15 DK
700
725
750
775
800
825
850
875
900
925
950
975
1 2 3 4 5 6 7 8 9
GROUND SPEED (miles/hr)
KNIFE SPEED (r
pm)
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
1.6 3.2 4.8 6.4 8.0 9.7 11.3 12.9 14.5
GROUND SPEED (km/hr)
KNIFE SPEED (spm)
FORAGE RANGE
GRASS RANGE
Example
Use Knife Speed Between 850 - 900 rpm (1700 -
: Cutting Forage at 5.0 mph (8.0 km/hr)
1800 spm).