25 ft draper – MacDon D60 Draper Headers User Manual
Page 43
SECTION 7. OPERATION
Form 169441
41
Revision B
20 and 25 Foot Single and Double Knife
Group A: Forage/Alfalfa/Flax
Group B: Canola/Cereals/Edible Beans
30 Foot Single and Double Knife
Group A: Forage/Alfalfa/Flax
Group B: Canola/Cereals/Edible Beans
Example: Cutting Group A Crops at 5.0 mph (8.0 km/hr) With Single Knife
Use Knife Speed Between 710 - 735 rpm (1420 - 1470 spm).
20-25 FT DRAPER
600
625
650
675
700
725
750
775
800
825
850
875
1
2
3
4
5
6
7
8
9
GROUND SPEED (miles/hr)
K
N
IF
E
SPEED
(
rp
m
1200
1250
1300
1350
1400
1450
1500
1550
1600
1650
1700
1750
1.6
3.2
4.8
6.4
8.0
9.7
11.3
12.9
14.5
GROUND SPEED (km/hr)
K
N
IF
E
SPEED
(s
p
m
DK GROUP A RANGE
DK GROUP B RANGE
SK GROUP A RANGE
SK GROUP B RANGE
KNIFE
SPEE
D (rp
m
)
KNIFE
SPEE
D (sp
m
)
Example: Cutting Group A or B Crops at 5.0 mph (8.0 km/hr) With Double Knife
Use Knife Speed Approximately 680 rpm (1360 spm).
30 FT DRAPER
550
575
600
625
650
675
700
725
750
775
800
825
1
2
3
4
5
6
7
8
9
GROUND SPEED (miles/hr)
K
N
IF
E
SPE
ED
(r
p
m
1100
1150
1200
1250
1300
1350
1400
1450
1500
1550
1600
1650
1.6
3.2
4.8
6.4
8.0
9.7
11.3
12.9
14.5
GROUND SPEED (km/hr)
KNI
F
E
S
P
E
E
D (
s
p
m
DK GROUP A MAX
DK GROUP A MIN/GROUP B MAX
DK GROUP B MIN
SK GROUP A & B RANGE
KNIFE
SPEE
D (rp
m
)
KNIFE
SPEE
D (sp
m
)