Wacker Neuson BTS 1030, Руководство оператора, Страница: 16 / 62

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CAUTION!
The rapid rotation of the cutting disc heats metal
and melts it at the point of contact. Swing the
guard as far down as possible behind the cut (19)
in 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.
- Keep the disc straight and vertical. Do not tip it, as this
can break it.
- The best way to get a good, clean cut is to pull or move
the Power Cut back and forth. Do 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. To
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, so
that at the same engine speed they have a lower
effective circumferential 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, so that the disc does not lock in (22).
Secure cutoff material from falling!
CAUTION!
If there is a chance that the material is 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. Precariously balanced pieces or
pieces under stress can act in unpredictable ways,
and may slide, jump out, or burst. Secure cutoff
material from falling (22)! Always exercise extreme
caution and use only equipment that is in perfect
working order.
Observe
the accident-prevention rules and
regulations of your employer and/or insurance
organization.
Cutting masonry concrete, asbestos or asphalt.
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