STIHL RM-4.0 RTP 63830113422 - Инструкция по эксплуатации - Страница 32

► Stop the engine.

► Detach the spark plug socket.

► Upend the lawn mower.

► Remove the blade.

► Sharpen the blade. Observe the sharpening

angle and cool the blade,   19.2.

Bluing of the blade during sharpening is not

permitted.

► Attach the blade.

► If anything is unclear: consult a STIHL special‐

ist dealer.

17 Repairing

17.1

Repairing the Lawn Mower

The user should not repair the lawn mower or

blade themselves.

► If the lawn mower or blade is damaged: do not

use the lawn mower or blade and consult a

STIHL specialist dealer.

► If warning signs are illegible or damaged: have

the warning signs replaced by a STIHL spe‐

cialist dealer.

18 Troubleshooting

18.1

Remedying Lawn Mower Faults

Fault

Cause

Remedy

Engine cannot

be started.

Control bar for mowing is not

pressed.

► Start engine as described in this instruction

manual.

Fuel tank is empty.

► Refuel lawn mower.

Fuel line is blocked.

► Consult a STIHL specialist dealer.

Inferior, dirty or old fuel in the

tank.

► Use fresh, good-quality unleaded petrol.

Air filter is dirty.

► Consult a STIHL specialist dealer.

Spark plug socket is detached

from spark plug or ignition lead

is not properly fastened to

socket.

► Connect spark plug socket.

► Check connection between ignition lead and plug.

Spark plug is dirty, damaged or

electrode gap is incorrect.

► Clean or replace spark plug.

► Adjust electrode gap.

Resistance at the blade is too

great.

► Set a higher cutting height.

► Start engine in lower grass.

Engine diffi‐

cult to start or

engine power

deteriorating.

Lawn mower housing is

blocked.

Clean lawn mower.

Cutting height is set too low or

rate of feed is too high.

Adapt cutting height or mow more slowly.

Water in fuel tank and carburet‐

tor or carburettor is blocked.

Empty fuel tank, clean fuel line and carburettor.

Fuel tank is contaminated.

Consult a STIHL specialist dealer.

Air filter is dirty.

Consult a STIHL specialist dealer.

Spark plug is dirty.

Clean or replace spark plug.

Engine over‐

heating.

Engine oil level is too low.

Add or change engine oil as described in the engine

instruction manual.

Cooling ribs are dirty.

Clean lawn mower.

Lawn mower

vibrates

excessively.

Blade is damaged.

Replace blade.

Blade is not correctly attached. Attach blade.

Grass is not

being cut

cleanly.

Blade is blunt or worn.

Sharpen or replace blade.

English

17 Repairing

32

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