26 –
English
Maintenance
Checking the engine’s cooling air
intake
Clean the air intake grille in the engine cover behind the
driver’s seat.
Open the engine cover.
Check that the cooling intake is free from leaves, grass and
dirt.
Check the air duct, located on the inside of the engine cover,
ensure it is clean and does not rub against the cooling air
intake.
A blocked cooling intake will interfere with the cooling of the
engine, which can damage the engine.
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.
1
Check the air pressure in the tyres 60 kPa / 0.6 bar / 9 PSI.
2
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.
3
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 air pressure in the tyres 60 kPa / 0.6 bar / 9 PSI.
2
Place the machine on a flat surface.
3
Measure the distance between the ground and cutting
unit’s edge at the front of the cover.
The cutting unit should have a slight slant, with the rear
edge 2-4 mm (1/8”) higher than the front edge.
Adjusting the parallelism of the
cutting unit
1
Check the air pressure in the tyres 60 kPa/0.6 kp/cm
2
/8.5
PSI.
2
Remove the front cover.
3
Loosen the parallelism stay’s nuts, the inner nut has a left-
hand thread.
4
Screw out (extend) the stay to raise the rear edge of the
cover. Screw in (shorten) the stay to lower the rear edge
of the cover.
5
Tighten the nuts after adjustment.
!
WARNING! The cooling air intake rotates
when the engine is running. Mind your
fingers.
