Bedienungsanleitung Alpina EA 1800 (Seite 13 von 24) (Alle Sprachen)

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PREPARING TO WORK 7

1. CHECKING THE MACHINE

Make sure the machine is

not plugged into the mains socket.

Before starting work please:

– check that the mains frequency and voltage is

the same as the rating data on the “identication

plate” (see chap. 1 - 10.8);

– ccheck that all the screws on the machine and

the bar are tightly fastened;

– check that the chain is tensioned correctly,

sharp and there are no signs of any damage;

– check that handgrips and protection devices

are clean and dry, correctly mounted and well

fastened to the machine;

– check that the chain brake is working eciently;

– check that the trigger switch and the safety

button should move freely without forcing and

return automatically and rapidly back to their

neutral position;

– check that the trigger switch must remain locked

until the safety button is pressed;

– make sure the cooling air vents are not clog ged

up with sawdust or debris;

– check that the power cable and extension lead

are not damaged;

– check that the chain’s oil level is not below the

«MIN» level mark and top up to 1 cm from the

rim of the ller if necessary.

2. CHECKING THE CHAIN TENSION

Make sure the machine is

not plugged into the mains socket.

• MACHINES WITH STANDARD

CHAIN TENSION ADJUSTER

– Loosen the guard nut, using the wrench (Fig. 5).

– Turn the chain tension adjuster screw (4) to ad-

just the chain tension (Fig. 5).

– Raise the bar and tighten the guard nut securely

using the wrench (Fig. 6).

The tension is correct when the drive links do not

slip out of the chain guides if you hold the chain in

the middle of the bar (Fig. 7).

Loosen the brake by pressing both the switch

and the safety button. Using a screwdriver, run

the chain along the guides to check that it moves

smoothly.

WARNING!

• MACHINES WITH “Q-TENS”

QUICK CHAIN TENSION ADJUSTER

– Loosen the handle (11). (Fig. 5a).

– Turn the ring-nut (12) to obtain the desired chain

tension level (Fig. 5a).

– Raise the bar and tighten the handle (11)

securely (Fig. 6a).

The tension is correct when the drive links do not

slip out of the chain guides if you hold the chain in

the middle of the bar (Fig. 7).

Loosen the brake by pressing both the switch

and the safety button. Using a screwdriver, run

the chain along the guides to check that it moves

smoothly.

3. CHECKING THE CHAIN BRAKE

This machine is equipped with a double braking

system that intervenes in two situations:

a) When the switch lever is released, a brake

is automatically activated that slows and stops

chain movement, in order to prevent the risk of

injury should the chain continue to turn after it

has been switched o.

b) In the event of a kickback while working,

following an irregular contact of the tip of the

bar, with a brusque upward movement that

causes the hand to strike the front guard. In

this case, the brake blocks chain movement

and must be released manually in order to di-

sengage it.

This brake can be operated manually by pushing

the front guard forward. To release the brake, pull

the front guard towards the handgrip until you hear

a click.

To check that the brake works eciently, proceed

as follows:

– Start the engine by holding the front handgrip

and push the front hand guard forwards with

your thumb (towards the bar).

– When the brake is engaged, release the trigger

switch.

The chain must stop as soon as the brake is en-

gaged.

5. PREPARING TO WORK

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