Viking LB 540, Instruction Manual

Page: 42 / 502

0478 670 9903 C - EN
40
– Empty fuel tank, clean fuel line and
carburettor (
@
), (
#
)
– Clean fuel tank (
@
), (
#
)
– Clean air filter (
@
), (
#
)
– Clean spark plug (
@
), (
#
)
Fault:
Engine overheating
Possible cause:
– Oil level in engine too low
– Dirty cooling ribs
Remedy:
– Check oil level and change engine oil if
necessary ( Ö 7.3)
– Clean cooling ribs ( Ö 11.2)
Fault:
Excessive vibration during operation
Possible cause:
– Defective scarifying unit
– Loose engine mounting
Remedy:
– Check blades, blade shaft, spacer
bushings, fastening and bearings of
scarifying unit and repair if necessary
(
Ö
11.3), (
#
)
– Tighten engine mounts (
#
)
Fault:
Poor working results
Possible cause:
– Blades set too deep (bare patches, high
grass content in scarified material)
– Blade set too shallow (little or no lawn
thatch is removed)
– Blades have reached wear limit
– V-belt defective, worn or insufficiently
tensioned
Remedy:
– Reduce working depth ( Ö 7.6)
– Increase working depth ( Ö 7.6)
– Replace blades ( Ö 11.3), (
#
)
– Replace V-belt (
#
)
Fault:
Blades not turning freely
Possible cause:
– V-belt defective
– Scarifying unit defective
Remedy:
– Replace V-belt (
#
)
– Repair scarifying unit ( Ö 11.3), (
#
)
Fault:
Scarifying unit cannot be raised or lowered
Possible cause:
– Cable defective or detached
Remedy:
– Replace or repair cable (
#
)
Fault:
Working depth cannot be set
Possible cause:
– Scarifying unit in operating position
– Rotary handle or adjustment element
defective
Remedy:
– Place scarifying unit in transport
position ( Ö 7.5)
– Repair rotary handle or adjustment
element (
#
)
20. 1 Handover confirmation
20.2 Service confirmation
Please hand this instruction manual
to your VIKING specialist dealer in
the case of maintenance work.
He will confirm the service operations
performed in the pre-printed boxes.
20. Service schedule
Service performed on
Next service date
1 5