Makita DPC7001 Owner's Manual download pdf (Page 8)

Cutting

metals

IMPORTANT!

Always wear approved respiratory protection!

Materials that can release toxic substances may be cut only

after notifying the proper authorities and under their supervi-

sion or that of a person appointed by them.

CAUTION!

The rapid rotation of the cutting disc heats metal and melts

at the point of contact. Swing the guard as far down as possible

behind the cut

(19)

order to direct the stream of sparks

forward, away from the operator (fire hazard).

Determine the direction of cutting, mark the cut and apply the

disc to the material at moderate speed, to cut a guide groove

before going to top speed and applying more pressure to the

Power Cut.

Keepthediscstraightandvertical. Donottipit, asthiscan break

it.

The best way to get a good, clean cut is to pull or move the

Power Cut back and forth.

not simply press the disc into the

material.

Thick round stock is best cut in stages

(20).

Thin tubing and pipes can be cut with a simple downward cut.

Cut large-diameter pipes as for round stock.

prevent tipping

and for better control, do not let the disc sink too deeply into the

material. Instead, always cut shallow around the whole piece.

Worn discs have a smaller diameter than new discs,

that at

the same engine speed they have a lower effective circumfer-

ential speed and therefore do not cut as well.

Cut I-beams and L-bars in steps; see Figure

21.

Cut bands and plates like pipes: along the wide side with a long

cut.

When cutting material under stress (supported material or

material in structures), always make a notch in the thrust

(pressure) side, and then cut from the tension side,

that the

disc does not lock in

(22).

CAUTION!

If there is a chance that the material

under stress, be

prepared for it to kick back. Make sure you can get out of the

way if you have

to!

Be particularly careful in scrap-metal yards, junkyards, at

accident sites, and with haphazard piles of material. Precari-

ously balanced pieces or pieces under stress can act in

unpredictable ways, and may slide, jump out, or burst. Always

exercise extreme caution and use only equipment that is

perfect working order.

Observe the accident-prevention rules and regulations of your

employer andlor insurance organization.

Cutting masonry and concrete

IMPORTANT!

Always wear approved respiratory protection!

Asbestos and other materials that can release toxic sub-

stances may be cut only after notifying the proper authorities

and under their supervision or that of a person appointed by

them. When cutting prestressed and reinforced concrete piles,

follow the instructions and standards of the responsible au-

thoritiesorthe builder of thestructural member. Reinforcement

rods must be cut

the prescribed sequence and

accordance

with applicable safety regulations.

NOTE:

Mortar, stone, and concrete develop large quantities of dust during

cutting.

increase the lifetime of the cutting disc (by cooling), to

improve visibility, and to avoid excessive dust creation, we strongly

recommend wet cutting instead of dry cutting.

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Makita DPC7001 Owner's Manual Page 8

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