AS MOTOR AS 901 SM Operating Instructions Manual page 26

Problem
Mulching result with
high plant material
not satisfactory
Discharge channel
is jammed
The device does not
stop when brake is
actuated
The engine does not
switch off
The tires become
flat
26
Possible cause
Speed is too high proportion-
ately to the cutting height.
Housing of mower is heavily
soiled.
Different tire pressure.
Speed is too high.
Mowed grass was too long or
too damp.
Blade is worn.
Engine speed too low despite
full power.
Brake is adjusted incorrectly,
worn, or defective.
Switching off system is defec-
tive.
Thorns or other sharp objects
damage the tires.
Remedy
Reduce speed and/or select the
correct cutting height.
Clean.
Check tire pressure.
Reduce speed.
Adjust cutting height and mowing
speed to the mowing conditions.
Authorised service centre.
Authorised service centre.
Authorised service centre.
Close the fuel valve.
Authorised service centre.
If necessary, use tire protection gel
(authorised service centre).