MacDon A40-D, Operator'S Manual

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Revision A
3.10 Selecting Ground Speed
CAUTION
Reduce speed when turning, crossing slopes, or when travelling over rough ground.
Windrower ground speed SHOULD NOT EXCEED 13 km/h (8 mph). For most crop conditions a ground speed of
8 km/h (5 mph) has been found satisfactory.
Choose a ground speed that allows the knife to cut the crop smoothly and evenly.
The chart below indicates the relationship between ground speed and area cut for three header sizes. For example,
at a ground speed of 8 km/h (5 mph) with a 4.9 m (16 ft.) header, the area cut would be approximately 4 hectares
(10 acres) per hour.
Figure 3.130: Ground Speed and Area Cut
A
–
Acres/Hour B
–
Hectares/Hour C
–
Kilometers/Hour D
–
Miles/Hour
E
–
5.5 m (18 ft.) F
–
4.9 m (16 ft.) G
–
4.3 m (14 ft.)
OPERATION