RB-214/215 Core Drilling Machine
Ridge Tool Company
8
10. Your control panel amp-meter will go into the red
area when you hit steel. When you encounter rebar,
lessen feed feed rate to allow needle to return to the
green area.
NOTE! It is recommended that after cutting steel, you
stop and break out core and any loose pieces of
steel, then proceed.
When drilling steel embedded in con-
crete, never switch to HIGH speed if you are drilling in
LOW speed. These bits are not designed to drill through
solid steel.
Use extreme care when drilling through
floors. Provide for protection of all personnel and mate-
rial below the area. Cores generally drop from drill bit at
completion of the hole.
Removing Cores
Breaking a Core
1. If you are not drilling completely through, the core can
be easily broken by inserting a screwdriver into the
drilled groove and prying the core to the opposite side.
2. Use a second screwdriver to lift core out.
Removing Broken Core Below the Surface
1. Use a
1
/
8
inch diameter steel rod.
2. Make a
1
/
4
inch long 90° bend at one end.
3. Insert rod down side of broken core to depth of break,
twist 90° and lift core out.
Removing Broken Core Stuck In Bit
Unplug machine cord from power source.
1. Increase water pressure and try to free core with
your hands.
2. If unable to free core, remove bit from drill.
3. Push core gently through from top of bit with a rod
using a capped bit.
Removing a Lodged Bit from Hole
Unplug machine cord from power source.
1. Turn Water ON.
2. Using bit wrench, try to rotate bit in both directions and
lift out using feed handle.
3. If unable to free bit, turn water OFF and disconnect bit
from drill spindle. Use bit wrench again, rotating back
and forth and rocking until free.
Installing Bit Extension Rods
In order to drill deeper than the 13
″
long bit will allow, bit
extension rods must be used. Drilling rate will be slower
because of the extra amount of drag on the bit walls.
NOTE! When it is necessary to place the drilling ma-
chine above the surface being drilled, do not
use a bit extension rod that is longer than 12
″
.
1. Drill to full depth of bit.
2. Back drill out and remove bit and core.
3. Put drill bit back into hole and connect a 4, 6 or 12
″
bit
extension rod to bit and secure with spindle wrench.
4. Screw bit extension rod onto drill spindle and secure
with spindle wrench.
5. Proceed with drilling.
Accessories
Only the following RIDGID products have
been designed to function with the Core Drilling Machine.
Other accessories designed for use with other tools may
become hazardous when used on this machine. To pre-
vent serious injury, use only the accessories listed below.
Accessories for Core Drilling Machines
Small Anchor Base (7
″
x 12
″
)
Anchor-Vacuum Base (13
″
x 17
″
)
Anchor-Vacuum Drill Stand
Vacuum Motor (115V) 60Hz
Vacuum Motor (230V) 50Hz Export
Vacuum Motor with Fittings (115V) 60Hz
Vacuum Motor with Fittings (230V) 50Hz
Control Panel (115V)
Control Panel (230V)
2
″
Spacer Block (Applications Over 10
″
)
20 Amp (115V) 25-60Hz, 450/1200 RPM Motor
10 Amp (230V) 25-60Hz, 4501200 RPM Motor
Spindle Wrench
Water Collector & Pump (115V)
Water Collector & Pump (230V)
Water Collector Ring
Water Pump (115V) 50-60Hz
Water Pump (230V) 50-60Hz
NOTE! See Ridge Tool catalog or a Ridge distributor for
a complete list of Core Drill Bits, Adapters and
Bit Extensions.
CAUTION
WARNING
WARNING
WARNING
WARNING
