Manual Makita HM 1140C (page 6 of 40) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Spanish, Norwegian, Finnish)

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Side handle (auxiliary handle) (Fig. 4)

The side handle can be swung 360° on the vertical

and secured at any desired position. It also secures at

eight different positions back and forth on the horizon-

tal. Just loosen the clamp nut to swing the side handle

to a desired position. Then tighten the clamp nut

securely.

Switch action (Fig. 5)

CAUTION:

Before plugging in the machine, always check to see

that the machine is switched off.

To start the machine, push the ‘‘ON I’’ button on the

left side of the machine. To stop the machine, push

the ‘‘OFF O’’ button on the right side of the machine.

Speed change (Fig. 6)

The blows per minute can be adjusted between 1,300

and 2,650 BPM just by turning the adjusting dial. This

can be done even while the machine is running. The

dial is marked 1 (lowest speed) to 5 (full speed). Refer

to the table below for the relationship between the

number settings on the adjusting dial and the blows

per minute.

Number on adjusting dial Blows per minute

5 2,650

4 2,350

3 1,950

2 1,550

1 1,300

Chipping / Scaling / Demolition (Fig. 7)

Hold the machine firmly with both hands. Turn the

machine on and apply slight pressure on the machine

so that the machine will not bounce around, uncon-

trolled. Pressing very hard on the machine will not

increase the efficiency.

MAINTENANCE

CAUTION:

Always be sure that the machine is switched off and

unplugged before carrying out any work on the

machine.

Replacement of carbon brushes (Fig.8&9)

Whenever carbon brushes must be replaced, they cut

out the machine 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 carbon brushes at the same time. Use

only identical carbon brushes.

Lubrication (Fig. 10 & 11)

This machine requires no hourly or daily lubrication

because it has a grease-packed lubrication system.

Lubricate the machine every time the carbon brushes

are replaced.

Run the machine for several minutes to warm it up.

Switch off and unplug the machine. Remove the crank

cap using a socket wrench. Rest the machine 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 genuine grease

(optional accessory). Filling with more than the speci-

fied amount of grease (approx. 30 g) can cause faulty

hammering action or machine failure. Fill only with the

specified amount of grease. Reinstall the crank cap

and tighten with the socket wrench. Do not tighten the

crank cap excessively. It is made of resin and is

subject to breakage.

To maintain product safety and reliability, repairs,

maintenance or adjustment should be carried out by

Makita Authorized Service Center.

GUARANTEE

We guarantee Makita machines in accordance with

statutory/country-specific regulations. Damage attrib-

utable to normal wear and tear, overload or improper

handling will be excluded from the guarantee. In case

of complaint, please send the machine, undismantled,

with the enclosed GUARANTEE CERTIFICATE, to

your dealer or the Makita Service Center.

HM1140C (E) (’98. 9. 9)

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Makita HM 1140C Manual

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