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91
Revision A
1.
Start the engine.
2.
Lower the rotary disc pull-type fully.
1018203
A
B
C
D
Figure 3.111: Hydraulic Center-Link
3.
Decrease (flatten) the cutterbar angle by operating the
tractor hydraulic control so that cylinder (C) retracts and
moves gauge (D) toward the green zone (A).
4.
Increase (steepen) the cutterbar angle by operating the
tractor hydraulic control so that cylinder (C) extends and
moves gauge (D) toward the red zone (B).
3.15.4
Ground Speed
Choose a ground speed that allows the cutterbar to cut the crop smoothly and evenly. Try different combinations of disc
speed and ground speed to suit your specific crop. Refer to your tractor operator
’
s manual for instructions on changing
ground speed.
CAUTION
Reduce speed when turning, crossing slopes, or traveling over rough ground.
In tough cutting conditions (such as native grasses), set the disc speed to MAXIMUM.
In light crops, reduce the rotary disc pull-type
’
s disc speed while maintaining ground speed.
NOTE:
Operating the rotary disc pull-type at the minimum disc speed will extend the wear life of cutting components.
The example shown in Figure
illustrates the relationship between ground speed and cut area for an R113
and an R116 rotary disc pull-type. The chart demonstrates that a ground speed of 21 km/h (13 mph) would produce a cut
area of approximately 8 hectares (20 acres) per hour.
