Troubleshooting
37
The blade does not
rotate
V-belt is insufficiently tensioned
or damaged.
Authorised service centre.
Bowden cable is defective.
Authorised service centre.
Strong vibrations dur-
ing operation
Imbalance of the blade caused
by incorrect sharpening or chips
on the blade.
Have blade resharpened and balanced
by an authorised service centre. Re-
place a damaged blade immediately.
Blade drive shaft is bent due to
collisions with foreign objects.
Authorised service centre.
Engine fastening is loose.
Authorised service centre.
Blade fastening is loose.
Authorised service centre.
Irregular noises
Loose fastening elements.
Authorised service centre.
Silencer is defective.
Authorised service centre.
Hydrostatic drive is overheated. Cool down (see also Maintenance and
cleaning).
Hydrostat defective.
Authorised service centre.
Engine is smoking
Air filter is dirty or drenched with
oil.
Maintain or replace air filter (see Main-
tenance).
Oil level is too high.
Have authorised service centre lower
the oil level up to the marking.
Engine gets hot
Ventilation grid is dirty.
Clean ventilation grid.
Oil level in the engine is too low. Refill engine oil (see operating instruc-
tions of the engine manufacturer).
Cooling fins of the engine are
dirty.
Have cooling fins cleaned by authorised
service centre.
Uneven cut, lawn be-
comes unsightly
Blade is dull or worn.
Have blade resharpened and balanced
by an authorised service centre. Re-
place a damaged blade immediately.
Speed is too high proportion-
ately to the cutting height.
Reduce speed and/or select the correct
cutting height.
Housing of the mower is heavily
contaminated.
Clean.
Different tire pressure.
Check the tire pressure.
Mower housing is not parallel to
the ground.
Adjust (authorised service centre).
Mulching result with
high plant material
not satisfactory
Speed is too high.
Reduce speed.
Mulching result with
low plant material not
satisfactory
Plant material is ejected too
quickly.
Increase speed.
Housing is jammed
Mowed grass was too long or
too damp.
Adjust cutting height and mowing speed
to the mowing conditions.
Blade is worn.
Authorised service centre.
Engine speed is too low despite
full power.
Authorised service centre.
The device does not
stop when the brake
is activated
Brake is adjusted incorrectly,
worn, or defective.
Check the parking brake (see chapter
Maintenance). Authorised service
centre.
The engine does not
switch off
Switching off system is defect-
ive.
Close the fuel valve.
Authorised service centre.
The tires become flat
Thorns or sharp objects dam-
age the tires.
If necessary, use tire protection gel (au-
thorised service centre).
