Filter
Top Products
7. Frequently check the water level in the vacuum water
trap. When water trap becomes half full, stop drilling
and empty water.
8. After using, turn drill motor ON/OFF switch to the
OFF position, then turn vacuum motor ON/OFF switch
to the OFF position, unplug power cord and remove,
clean and store vacuum seal.
NOTE! Vacuum can be released by turning vacuum
release valve (Figure 2).
Ceiling Jack Anchor Method
1. Cut pipe or wood to the required length to fit be-
tween ceiling and ceiling jack screw (Figure 1) on
top of mast.
2. Tighten ceiling jack screw to force machine against
floor.
3. Stabilize and plumb machine by adjusting 4 leveling
screws on base.
Operating Instructions
WARNING!
Do not wear cloth gloves or loose clothing when
operating Drilling Machine. Keep sleeves and jack-
ets buttoned. Do not reach across the machine.
Keep hands and fingers away from drill bits.
Do not use this Drilling Machine if the ON/OFF
switch or other controls are broken. Always wear
eye protection to protect eyes from dirt and other
foreign objects.
Do not use Drilling Machine if it is not securely an-
chored.
1. Thread the drilling bit (Figure 4) onto drilling spindle
(Figure 1) and tighten securely with bit wrench.
Never turn drill ON with bit resting on
the concrete.
2. Check hole alignment by lowering drill until it is about
1
/
2
″ from concrete.
3. Position 2-speed selector knob on drill to desired
speed. Move selector down towards spindle to select
high speed for up through 4″ bits. Move selector
up away from spindle to select low speed for bits
Ridge Tool Company 7
over 4″. Make certain speed is proper for bit diame-
ter being used.
DO NOT move speed selector while drill
spindle is rotating.
NOTE! If a water collector ring and pump is used, plug
pump into a properly grounded 115V receptacle.
Have suitable container for draining.
4. With water control valve shut OFF. connect water
inlet hose to drill and water source.
NOTE! Water can be supplied by a standard garden
hose or by a pressure tank. Water is fed through
inlet hose, down inside of bit, washing cuttings
from under bit crown, up and outside of hole. Be
sure that any method used has adequate water
pressure to supply a flow of 1-2 gallons per
minute. Lack of water can cause diamonds to
polish or burn the bit causing bit end to turn blue.
5. With drill motor ON/OFF switch in OFF position, plug
power cord into a properly grounded receptacle.
6. Open water control valve allowing water to flow at 1-
2 gallons per minute.
Before turning drill motor ON, be certain
that machine is securely anchored.
7. Turn drill motor ON/OFF switch to ON position.
DO NOT apply full load until entire bit
crown has penetrated the material.
8. Turn feed handle to apply load on bit. To prevent bit
from wandering, apply light pressure on feed handle
while starting to drill.
NOTE! The AMP-meter has a green and red area to in-
dicate proper pressure and drilling speed,
preventing motor overload and providing longer
bit life. The green area is the working range;
the red area indicates too much pressure being
applied. Keep Amp-meter needle in the green
area. Too little pressure can polish bit and too
much can cause undue wear.
9. Drill bit feed should be uniform without excessive
force. Drilling penetration of 1″ to 4″ per minute may
be achieved in concrete depending on material and bit
diameter. Proper feed pressure is determined by load
on motor and reading on Amp-meter. To maximize life
of drill bit, regulate feed rate so that needle on Amp-
meter is in upper green area of 20 amp range. If
needle goes into red area above 20 amps, decrease
feed rate as undue bit wear will result.
NOTE! If the cooling water turns clear, it is an indication
you are drilling through rebar.
RB-214/215 Core Drilling Machine
CAUTION
CAUTION
WARNING
CAUTION