MacDon R85 Rotary Disc 16 Foot Pull-Type - Manual (Page 77)

OPERATION
5.14.4 Turning Square Corners
The following procedure is intended only as a guide to developing a turning procedure for the tractor being used.
Specific distances are not given due to the variances in tractor maneuverability.
1. As the tractor approaches the corner, guide the
tractor sharply away from the crop. Steer the mower
conditioner to maintain a straight cut ahead as the
tractor moves away from the crop.
2. As soon as the mower conditioner cuts past where
the new corner will be, raise the mower conditioner
sufficiently for skid shoes to clear the ground, then
steer the mower conditioner to the extreme direction
away from the uncut crop.
3. As the tractor passes the corner, steer it sharply back
towards the uncut crop, taking care that the inside
tractor tire does NOT contact the hitch.
4. Guide the tractor to straddle the last cut windrow. As
the mower conditioner finishes turning, steer it back
towards the uncut crop, align the mower conditioner
with the crop edge, and lower mower conditioner to
cutting height.
Figure 5.71: Square corners
5.14.5 Performing a 180-Degree Turn
NOTE: When cutting back and forth on one side of the field, approximately 50 ft. (15 m) is required at each
end of the field to make a 180-degree turn-around.
1. Beginning at position (A), the tractor is guided away from the uncut crop, while the mower conditioner is guided
straight ahead until cutting through the end.
2. As soon as the mower conditioner cuts through, raise the mower conditioner to lift the skid shoes clear of the
ground, and steer the mower conditioner to the extreme direction away from the uncut crop.
NOTE: For ease of operation, both levers can be activated with one hand, and held until steering cylinder
completes its stroke.
3. At position (B), start turning the tractor back towards the uncut crop.
IMPORTANT
When turning, take care that the inside tractor tire does NOT contact the mower conditioner hitch.
1. In positions (C) and (D), continue turning towards the uncut crop, (with the mower conditioner steered towards
the outside of the turning circle), being aware of hitch-to-tire clearance.
2. At position (E), the tractor completes the circle, and the front wheels are turned to straddle the last cut windrow.
At this point, steer the mower conditioner to line up with the edge of the uncut crop.
3. At position (F), lower mower conditioner to cutting height, and begin a new cut through the field.
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