Manual Al-ko AL-KO 142 (page 38 of 124) (English, German, Dutch, French, Italian, Spanish)

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Operating and maintenance instructions

ENGLISH 18

9.6 Information about the spark plug

Check the spark plug regularly after 50 hours of

operation.

• Press the back tab of the spark plug cover (16)

down and remove in an upwards motion.

• Disconnect the spark plug cap.

• Unscrew the spark plug and dry the electrodes.

The spark plug should be replaced after 100 hours of

operation or if the electrodes are badly worn.

Do not turn the engine over while the spark plug has

been removed or the spark plug cap has been

disconnected from the high-tension ignition cable. A

spark may cause a fire!

Spark plugs with resistor (thermal value 200) are

available in different brands under the following

description:

BOSCH WSR6F

CHAMPION RCJ-6Y or comparable.

The correct electrode gap is 0.5 mm.

Only use spark plugs, where the contact nut has

been firmly fitted. Loose connectors may produce

sparks, which can cause a fire. Before restarting the

engine, check the high-tension ignition cable for any

damage to its insulation and ensure the cable is

connected securely to the plug cap

• Insert the spark plug into the cylinder head and

tighten it.

• Push the spark plug cap firmly over the spark plug.

• Position the spark plug cover onto the housing by

aligning it with the guiding pins, push down and

click into place.

9.7 Replacing the fuel filter

We recommend having the fuel filter (34) changed

annually by a specialised service centre.

A trained mechanic can carefully remove the fuel filter

via a wire loop through the fuel tank filler. Ensure that

the thicker part of the fuel hose on the tank wall is not

drawn into the fuel tank.

9.8 Shutdown and storage

Preferably, store the equipment in a dry and secure

place with a full fuel tank. Open flames or similar

must not be nearby. Prevent unauthorised use –

particularly by children.

For stops longer than four weeks the following steps

should be carried out:

• Empty and clean the fuel tank at a well-ventilated

location.

• Start the engine with an empty fuel tank. Run the

engine until the carburettor is empty and the

engine stalls. Otherwise the carburettor nozzles

could become encrusted with residual fuel mixture

and make a subsequent start harder.

• Clean the power tool well (particularly the air intake

openings, the cylinder fins, the air filter and the fuel

filler area).

• Preferably, store the equipment in a dry and secure

place with a full fuel tank. Open flames or similar

must not be nearby. Prevent unauthorised access

– particularly by children.

Fig. 23

Fig. 22

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Al-ko AL-KO 142 Manual

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