English – 33
MAINTENANCE
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 pres-
sing too hard against it.
The pressure is adjusted with a screw on each side
of the machine.
1. Check the air pressure in the tyres 60 kPa
(0.6 kp/cm
2
/8.5 PSI).
2. Place the Rider 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 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 (26.5-33 lb).
Checking the cutting unit’s parallelism
Check the parallelism of the cutting unit as follows:
1. Check the air pressure in the tyres 60 kPa
(0.6 kp/cm
2
/8.5 PSI).
2. Place the machine on a level surface.
3. Put the lifting lever in the mowing position.
4. Measure the distance between the ground and
the front and rear edges of the cutting unit hood.
The cutting unit should slope forwards slightly so
that the rear edge is 2-4 mm (1/8") higher than
the front edge.
6017-216
6008-019
6017-217
1
2
8
9
Installing BioClip 90
In order to install BioClip 90 the drive belt support
wheel must first be removed.
1. Release the tensioning wheel’s spring, see ring
in the diagram.
2. Remove the locking pin (1) that is located next to
the support wheel.
3. Screw off the nut and washer (2) under the
centre of the support wheel. Remove the screw
and support wheel.
4. Fit the cutting unit according to the instructions
above.
6017-142
