AS MOTOR AS 53 B4/4T User Manual

25
Problem Possible cause Remedy
Poor quality, dirty, or old fuel. Always use fresh fuel.
Spark plug is sooted, damaged,
or incorrect electrode gap.
Clean spark plug and check
electrode gap (see also Maintenance
and cleaning). If necessary, replace
spark plug.
Housing of mower is jammed. See also Maintenance and cleaning.
No drive when drive
lever is actuated
Driving belt is insufficiently
tensioned.
Authorised service centre.
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 balanced and re-
sharpened by an authorised service
centre. Replace a damaged blade
immediately.
Blade drive shaft is bent by
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 defective. Authorised service centre.
Engine gets hot Ventilation grid is dirty Clean ventilation grid.
Cooling fins of the engine are
dirty.
Have cooling fins cleaned by
authorised service centre.
Uneven cut, lawn
becomes unsightly
Blade is dull or worn.
Have blade balanced and re-
sharpened by an authorised service
centre. Replace a damaged blade
immediately.
Speed is too high
proportionately to the cutting
height.
Reduce speed and/or select the
correct cutting height.
Housing of mower is heavily
soiled.
Clean.
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.

AS MOTOR AS 53 B4/4T Specifications

General

Brand	AS MOTOR
Model	AS 53 B4/4T
Category	Lawn Mower
Language	English