10.Your control panel
NOTE! It is recommended that after cutting steel, you stop and break out core and any loose pieces of steel, then proceed.
CAUTION 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.
WARNING 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
WARNING 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
WARNING 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
WARNING 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″)
Control Panel (230V)
2″ Spacer Block (Applications Over 10″)
20 Amp (115V)
10 Amp (230V)
Water Collector & Pump (115V)
Water Collector & Pump (230V) Water Collector Ring
Water Pump (115V)
Water Pump (230V)
NOTE! See Ridge Tool catalog or a Ridge distributor for a complete list of Core Drill Bits, Adapters and Bit Extensions.
8 | Ridge Tool Company |