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RIDER 850RIDER 850RIDER 850
MAINTENANCE
Checking and adjustment of the cutting
unit’s ground pressure Rider 970
To achieve the best cutting results the cutting unit
should follow the underlying surface without press-
ing too hard against it.
The pressure is adjusted with a screw on each side
of the machine.
Adjusting of the cutting unit’s ground pressure is
conducted as follows:
1. Place a set of bathroom scales under the cutting
unit’s frame (front edge) so that it rests on the
scales. If necessary a block can be placed be-
tween the frame and scales so that the support
wheels do not bear any weight.
2. Adjust the unit’s ground pressure by screwing in
or out the adjusting screws located behind the
front wheels on both sides.
The ground pressure should be between 12 and
15 kg.
Checking the cutting unit’s parallelism
Check the parallelism of the cutting unit as follows:
1. Place the machine on a level surface.
2. Measure the distance from the ground to the
edge of the unit, at the front and back of the
hood.
If the values are the same the cutting unit is
parallel.
850,970 Eng 97-10-14, 14.3025