28 – English
Maintenance
9 Lift the unit until it stops and a clicking sound is heard. The
unit locks automatically in the vertical position.
Restoring from service position
1 Grip the front edge of the unit and loosen the lock, fold
down and slide in the unit.
2 Replace the cutting height stay and the belt.
3 Tension the belt with the belt adjuster.
4 Fit the front cover.
Checking and adjustment of the
cutting unit’s ground pressure
To achieve the best cutting results the cutting unit should
follow the underlying surface without pressing too hard
against it. Pressure is adjusted using a screw and spring on
each side of the Rider.
The adjustment must be made in the stated order.
Starting position:
1 Check the tyre pressures. The tyre pressure should be 0,8
bar / 80 kPa / 11,6 PSI for all wheels
2 Place the machine on a flat surface.
3 Put the lifting lever in the mowing position.
4 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 between the frame and
scales so that the support wheels do not bear any weight.
5 Adjust the cutting unit’s ground pressure by screwing the
adjuster screws, which are located behind the front
wheels on both sides, in or out. The ground pressure
should be between 12 and 15 kg and the springs evenly
tensioned.
Checking the cutting unit’s
parallelism
Check the cutting unit’s parallelism as follows:
1 Check the tyre pressures.
2 Place the machine on a flat surface.
3 Put the lifting lever in the mowing position.
4 Measure the cutting deck at the front and the rear. The
rear dimension should always be at least 4 mm higher
than the front.
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