Troubleshooting; Remedying Lawn Mower Faults - Stihl RM 248 Gebrauchsanleitung

18 Troubleshooting

18 Troubleshooting

18.1 Remedying Lawn Mower Faults

Fault Cause
Engine cannot be Control bar for mowing is not pressed. ► Start engine as described in this instruction manual.
started.
Fuel tank is empty.
Fuel line is blocked.
Inferior, dirty or old fuel in the tank.
Air filter is dirty.
Spark plug socket is detached from
spark plug or ignition lead is not
properly fastened to socket.
Spark plug is dirty, damaged or
electrode gap is incorrect.
Resistance at the blade is too great.
Engine difficult to Lawn mower housing is blocked.
start or engine
power
deteriorating.
Cutting height is set too low or rate of
feed is too high.
Water in fuel tank and carburettor or
carburettor is blocked.
Fuel tank is contaminated.
Air filter is dirty.
Spark plug is dirty.
Engine Engine oil level is too low.
overheating.
Cooling ribs are dirty.
0478-111-9647-A
Remedy
► Refuel lawn mower.
► Consult a STIHL specialist dealer.
► Use fresh, good-quality unleaded petrol.
► Consult a STIHL specialist dealer.
► Connect spark plug socket.
► Check connection between ignition lead and plug.
► Clean or replace spark plug.
► Adjust electrode gap.
► Set a higher cutting height.
► Start engine in lower grass.
Clean lawn mower.
Adapt cutting height or mow more slowly.
Empty fuel tank, clean fuel line and carburettor.
Consult a STIHL specialist dealer.
Consult a STIHL specialist dealer.
Clean or replace spark plug.
Add or change engine oil as described in the engine instruction
manual.
Clean lawn mower.
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