909 HD850 Manual de instruções - Página 10

Procurar online ou descarregar pdf Manual de instruções para Perfurar 909 HD850. 909 HD850 13 páginas. 909 hd1050; hd850 high performance hammer action drill

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Gear selector

The gear selector (10) allows you to shift gears for greater

versatility of operation.

1. To select the low speed, high

torque setting (Position 1), turn

the tool off and let the motor

come to a complete standstill.

Turn the gear selector to

Position "1".

2. To select the high speed, low

torque setting, (Position 2), turn

the tool off and let the motor

come to a complete standstill.

Turn the gear selector to Position "2".

Note.

Do not change gears when the drill motor is turning.

If you are having trouble changing gears, make sure that

the gear selector is either completely in Position 1 or

completely in Position 2 as you rotate the chuck by hand.

Chuck replacement

Always wear eye protection.

Chuck removal

The chucks of reversible drills are always fixed by a screw

with left-hand thread. The screw, which is located in the

centre of the chuck, must be removed before the chuck can

be removed.

1. Tighten the chuck around the shorter end of a hex key

(not supplied) of 1/4" or greater size. Using a wooden

mallet or similar object, strike the longer end in the

clockwise direction. This will loosen the screw inside

the chuck.

2. Open chuck jaws fully.

3. Insert a screwdriver into front of chuck between jaws to

engage screw head. Remove screw by turning clockwise.

4. Place a hex key in chuck and

tighten. Using a wooden mallet or

similar object, strike key sharply

in the counter clockwise direction.

This will loosen the chuck so that

it can be unscrewed by hand.

Chuck installation

1. Screw the chuck on by hand as far as it will go and insert

screw (LH thread).

2. Tighten the chuck

around the shorter end

of a 1/4" or large hex

key (not supplied) strike

the longer end in the

clockwise direction with

a wooden mallet.

3. Remove the hex key

and open the jaws fully. Tighten the screw in the centre of

the chuck firmly.