Bedienungsanleitung Makita HM 1242C (Seite 6 von 36) (Deutsch, Englisch, Holländisch, Dänisch, Französisch, Italienisch, Portugiesisch, Spanisch, Schwedisch, Norwegisch, Finnisch)

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Switch action (Fig. 6)

CAUTION:

Before plugging in the tool, always check to see that the

tool is switched off.

To start the tool, push the switch lever on the left side of

the tool. To stop the tool, push the switch lever on the

right side of the tool.

Speed change (Fig. 7)

The blows per minute can be adjusted between 950 and

1,900 BPM just by turning the adjusting dial. This can be

done even while the tool is running. The dial is marked 1

(lowest speed) to 6 (full speed). Refer to the table below

for the relationship between the number settings on the

adjusting dial and the blows per minute.

Chipping / Scaling / Demolition (Fig. 8)

Hold the tool firmly with both hands. Turn the tool on and

apply slight pressure on the tool so that the tool will not

bounce around, uncontrolled. Pressing very hard on the

tool will not increase the efficiency.

Indicator lamp (Fig. 9)

The green power-ON indicator lamp lights up when the

tool is switched ON. If the indicator lamp is lit but the tool

does not start, the carbon brushes may be worn out, or the

electric circuit or the motor may be defective. If the indica-

tor lamp does not light up and the tool does not start, the

ON/OFF switch or the mains cord may be defective.

The red service indicator lamp lights up when the carbon

brushes are nearly worn out to indicate that the tool

needs servicing. After approx. 8 hours of use, the motor

will automatically be shut off.

MAINTENANCE

CAUTION:

Always be sure that the tool is switched off and

unplugged before carrying out any work on the tool.

Replacement of carbon brushes (Fig. 10 & 11)

Whenever carbon brushes must be replaced, they cut out

the tool automatically. When this occurs, loosen the

screws which secure the rear cover. Pry up the rear cover

with a screwdriver and remove it. Then replace both car-

bon brushes at the same time. Use only identical carbon

brushes.

Lubrication

This tool requires no hourly or daily lubrication because it

has a grease-packed lubrication system. Lubricate the

tool every time the carbon brushes are replaced.

Run the tool for several minutes to warm it up. Switch off

and unplug the tool. Loosen the six screws and remove

the handle. (Fig. 12)

Remove the crank cap using a socket wrench. (Fig. 13)

Rest the tool on the table with the bit end pointing

upwards. This will allow the old grease to collect inside

the crank housing. Wipe out the old grease inside and

replace with a fresh grease (30 g). Use only Makita genu-

ine hammer grease (optional accessory). Filling with

more than the specified amount of grease (approx. 30 g)

can cause faulty hammering action or tool failure. Fill only

with the specified amount of grease. Reinstall the crank

cap and tighten with the socket wrench. (Fig. 14)

CAUTION:

• Be careful not to damage the terminals or lead wires

especially when wiping out the old grease or installing

the handle.

• Do not tighten the crank cap excessively. It is made of

resin and is subject to breakage.

To maintain product safety and reliability, repairs, mainte-

nance or adjustment should be carried out by a Makita

Authorized Service Centre.

Number on

adjusting dial

Blows per minute

61,900

51,800

41,600

31,300

21,050

1950

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