30
The blade slides
Replace friction discs.
Authorised service centre.
Strong vibrations
during operation
Unbalance at 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.
Engine is smoking
Air filter is soiled or drenched
with oil.
Maintain or replace air filter (see also
Maintenance and cleaning).
Oil level is too high.
Have authorised service centre lower
the oil level 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 author-
ised 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 cor-
rect cutting height.
Housing of the mower is heav-
ily contaminated.
Clean.
Discharge channel 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.
Authorised service centre.
The device does not
stop
Drive belt does not declutch.
Authorised service centre.
The engine does not
switch off
Switching off system is defect-
ive.
Close the fuel valve.
Authorised service centre.