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Stihl 4140 User Manual

Stihl 4140
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NOTICE
Do not pull out the starter rope all the way – it
might otherwise break.
9.2.4 Both versions
Do not let the starter grip snap back. Guide it
slowly back into the housing so that the starter
rope can rewind properly.
Continue cranking.
9.2.5 When engine begins to fire
8
232TI015 KN
After no more than five pulls, move the choke
lever (8) to e and
continue cranking.
9.2.6 As soon as the engine runs
Squeeze the throttle trigger to disengage the
tongue – the engine will settle down to idle
speed.
WARNING
Make sure the carburetor is correctly adjusted.
The cutting attachment must not rotate when the
engine is idling.
Your machine is now ready for operation.
9.3 Stopping the engine
Move the stop switch to
0.
9.4 If engine does not start
Choke lever
If you did not move the choke lever quickly
enough to e after the engine began to fire, the
engine is flooded.
Set choke to e and
Move the stop switch to I, interlock lever and
throttle trigger to the starting throttle position.
Start the engine by pulling the starter rope
briskly – 10 to 20 pulls may be necessary.
If the engine still does not start
Move the stop switch to 0.
Remove the spark plug – see "Spark Plug".
Dry the spark plug.
Crank the engine several times with the starter
to clear the combustion chamber.
Refit the spark plug – see "Spark Plug".
Move the stop switch to I.
Set choke to e – even if the engine is cold.
Now start the engine.
9.4.1 Fuel tank run until completely dry
After refueling, press the manual fuel pump
bulb at least five times – even if the bulb is fil‐
led with fuel.
Set the choke knob to suit the engine temper‐
ature.
Start the engine.
10 Operating Instructions
10.1 During break-in period
A factory-new machine should not be run at high
revs (full throttle off load) for the first three tank
fillings. This avoids unnecessary high loads dur‐
ing the break-in period. As all moving parts have
to bed in during the break-in period, the frictional
resistances in the engine are greater during this
period. The engine develops its maximum power
after about 5 to 15 tank fillings.
10.2 During Operation
After a long period of full throttle operation, allow
the engine to run for a short while at idle speed
so that engine heat can be dissipated by the flow
of cooling air. This protects engine-mounted
components (ignition, carburetor) from thermal
overload.
10.3 After Finishing Work
Storing for a short period: Wait for the engine to
cool down. Empty the fuel tank and keep the
machine in a dry place, well away from sources
of ignition, until you need it again. For longer out-
of-service periods – see "Storing the Machine".
10 Operating Instructions English
0458-232-0121-F 17

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Stihl 4140 Specifications

General IconGeneral
BrandStihl
Model4140
CategoryTrimmer
LanguageEnglish

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