– Spark plug dirty.
Remedy:
– Clean lawn mower housing (detach
spark plug socket!). (
12.1)
– Select a higher cutting height or reduce
the pushing speed. (
8.4)
– 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.
– Cooling ribs dirty.
Remedy:
– Change engine oil. (
12.5)
– Clean cooling ribs. (
12.1)
Fault:
Excessive vibration during operation.
Possible cause:
– Cutting unit defective.
– Engine mounting loose.
Remedy:
– Check mowing blade, blade shaft and
blade fastening (blade fastening screw
and retaining washer), and repair if
necessary.
– Tighten engine mounting bolts.
Fault:
Poor cut, lawn turning yellow.
Possible cause:
– Mowing blade is blunt or worn.
– Rate of feed is too high in relation to
cutting height.
0478 111 9936 B - EN
– Housing is not parallel to ground.
Remedy:
– Sharpen or replace mowing blade
(
12.3), (
12.4).
– Reduce rate of feed and/or select
correct cutting height.
– Set front and rear cutting height to
same cutting level. (
8.4)
Fault:
No drive when self-propulsion lever is
actuated. (RM 2.0 RT)
Possible cause:
– Self-propulsion cable defective
(e.g. kinked).
Remedy:
– Replace cable.
20. Service schedule
20.1 Handover confirmation
20.2 Service confirmation
Please hand this instruction manual
to your STIHL specialist dealer in
the case of maintenance operations.
He will confirm the service operations
performed in the pre-printed boxes.
Service performed on
Next service date
17
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