21
If the adjustment does not show any
improvement, have an authorised dealership
check the device.
Checking the reverse gear
1
1. Put the device on a non-slip surface (e.g.
concrete or asphalt).
2. Switch off the engine.
3. Actuate the reverse gear.
4. Try to pull the device backwards on its
front wheels.
If the front wheels lock, the reverse gear is
correctly adjusted. If you can pull the device,
the reverse gear must be re-adjusted.
Re-adjusting the reverse gear:
1. Release the lever for the reverse gear.
2. Unscrew the adjusting screw (
1) to the
point where the cable has no play.
If there is no improvement after the
adjustment, have the device checked by an
authorised service centre.
Checking the blade
Danger!
Improperly mounted and
maintained blades pose a severe
injury hazard.
Work at the blade shall only be
performed by an authorised
service centre.
Work on the blade requires special
qualifications because an unbalance test is
required and the torques must be observed.
Check the blade and slip clutch regularly
before and after each mowing and when
there are significant changes.
Vibrations indicate that the blade is worn
excessively or on one side. When a rubber
element between engine and housing breaks,
vibrations can result.
Improperly sharpened blades increase the
device load and result in fatigue cracks and
breakage!
Ejected pieces can cause severe injuries.
Blade change
1
1
2
2
It is absolutely necessary to change the
blade:
When one of the wear markings (1) was
reached. Original blade are engraved
with wear markings (marking in form of a
ball-shaped imprint on the rear side of the
blade).
When the thickness of the blade at the
rear edge of the vane (
2) or at another
point is below 1 mm (exception: cutting
edge).
At the least once per year or every
50 operating hours, whether there is wear
or not. The material deteriorates, may
show cracks and this can endanger
persons and material goods.
An original AS blade can be recognised by
these imprints:
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