Diamond Products Core Bore Handbuch - Seite 6

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crown, up and outside of hole. Be sure
pressure to supply
diamonds to
polish
5. With
Drill Motor ON/OFF
grounded 3-prong receptacle.
6. Open Water Control Valve
Caution: Before turning Drill Motor
anchored by a method described on Pages 3 or
7. Turn Drill Motor
ON/OFF
Caution:
DO NOT apply full load until entire Bit
Crown has penetrated the material.
8. Turn Feed Handle to apply load on Bit. To
on Feed
Handle while
Note:
The Amp-meter has a green and red area to in dicate proper pressure
drilling speed, preventing Motor overload and providing longer Bit
the working range; the red area indicates too much pressure
Amp-meter needle
can cause undue wear.
9. Drill Bit teed
should
inches per minute may be achieved in
Proper
teed
pressure is determined by load
maximize lite
of
green area of 20 amp
motor). It needle goes
Note:
When water turns
10.
Your Control
encounter
rebar, lessen teed rate to allow needle to return to the green area.
Note:
It is
recommended
loose pieces
of
Caution: When drilling steel embedded in
you are drill ing in low
solid
steel.
Warning: Use extreme care when drilling through
of
all per sonnel and material below the
completion
Removing Cores
Breaking a Core
1. It you are not dri
screwdriver
into
the drilled groove and prying the core
2. Use a second screwdriver to lift core out.
Removing Broken Core Below the Surface
1. Use
a 1/8-inch
diameter
a
flow of
1-2
gallons per minute. Lack of
or burn the
Bit,
causing
Switch in
OFF
(Fig.
5) allowing
Switch to ON position.
starting
to drill.
in
the green area. Too little pressure can polish Bit
be
uniform
without excessive
concrete
Drill
Bit, regulate teedrate so that needle
range (15
amp range on 15
into
red area decrease teed rate as undue Bit wear
clear,
you are
Panel
amp-meter will
go
that after
steel, then
proceed.
speed.
of
the hole.
l
ling completely
through,
steel
rod.
that
any
method
used has ade quate water
Bit
end to turn blue.
position,
plug Power
water
to flow at 1-2 gallons per minutes.
on,
be certain
that
4.
prevent
Bit from wandering,
force.
Drill
depending on material and Bit diameter.
on
motor
and reading on Amp meter. To
on
amp
motors;
drilling through rebar.
into
the red area when you hit steel. When
cutting
steel,
you
stop and break out
concrete,
never switch to high speed
These Bits are
not
floors.
area.
Cores generally drop from Drill
the
core can be easi
to the
6
water can
cause
Cord
into a properly
Machine is securely
apply
light pressure
and
lite.
The green area is
be·
ing
applied.
and too
i
ng penetration of 1 to 4
Amp-meter
is
in upper
18 amp range
on
18
will
result.
you
core and
designed to
drill
through
Provide for protection
l
y
broken by inserting a
op posite side.
Keep
much
amp
any
if
Bit
at