Bedienungsanleitung Alpina TR 250 J (Seite 17 von 24) (Alle Sprachen)

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MAINTENANCE AND STORAGE

Correct maintenance is essential to maintain the

original eciency and safety of the machine over

time.

WARNING! During maintenance ope-

ra tions:

– Remove the spark plug cap.

– Wait until the engine is suciently cold.

– Never dispose of oils, fuel or other polluting

materials in unauthorised places.

CYLINDER AND SILENCER

To reduce re risks, periodically clean the cylinder

aps with compressed air and clear the silencer

area to get rid of sawdust, branches, leaves or

other debris.

STARTING SYSTEM

To avoid overheating and damage to the engine,

always keep the cooling air vents clean and free

of sawdust and debris.

The starter rope must be replaced as soon as it

shows signs of wear.

NUTS AND SCREWS

Periodically check that all the nuts and screws are

securely tightened and the handgrips are tightly

fastened.

CLEANING THE AIR FILTER (Fig. 12)

IMPORTANT Cleaning the air lter is es-

sential to guarantee the eciency and duration of

the machine. Do not work with a damaged lter or

without a lter, as this could permanently damage

the engine.

It must be cleaned after every 15 working hours.

Clean the lter as follows:

– Loosen the knob (3), remove the cover (1) and

the lter element (2).

– Wash the lter element (2) with soap and wa ter.

Do not use petrol or other solvents.

– Leave the lter to dry in the open air.

– Fit the lter element (2) and the cover (1) back

on, tightening the knob (3) again.

CHECKING THE SPARK PLUG (Fig. 13)

Periodically remove and clean the spark plug us-

ing a metal brush to get rid of any deposits.

Check and reset the correct distance between the

electrodes.

Replace the spark plug and fasten it rmly using

the supplied wrench.

The spark plug must be replaced with one with

the same characteristics whenever the electrodes

have burnt or the insulation has worn, and in any

case every 100 working hours.

TUNING THE CARBURETTOR

The carburettor is tuned by the manufacturer to

achieve maximum performance in all situations,

with a minimum emission of toxic gas in compli-

ance with the regulations in force.

In the case of poor performance contact your

Dealer for a check of the carburetion and engine.

• Tuning minimum speed

WARNING! The cutting device must

not move when the engine is running idle. If

the cutting device moves when the engine is

running idle, contact your dealer to correctly

regulate the engine.

SHARPENING THE LINE CUTTING KNIFE

(Fig. 14)

– Remove the line cutting knife (1) from the guard

(2) by unscrewing the screws (3).

– Fix the line cutting knife in a vice and sharpen it

using a at le, being careful to retain the origi-

nal cutting angle.

– Ret the knife on the guard.

HEAD LINE REPLACEMENT (Fig. 15)

– Follow the sequence indicated in the gure.

8. MAINTENANCE AND STORAGE

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Alpina TR 250 J Seite 17

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