4 ” Z 1 C O R E D R I L L
9
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If using the machine with the water system, connect hose to the side of the machine
using the connector.
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This connector takes standard ¾” US garden hose hookup.
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Make sure the water valve is in the off position.
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This is generally at a 90 degree angle from the valve hose.
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Partially turn the water spigot on (usually half a turn).
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CAUTION: DO NOT turn the hose on fully! You need sufficient water
when using wet type bits. Using too much water pressure can cause
the bits to not cut properly as well as water entering the gearbox.
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Select appropriate size cutting bit and install by screwing the bit onto the spindle.
See section below for details on securing bit.
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Plug the machine into power source.
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Form a loose knot in the power cord close to the plug connection to prevent
fluid from running down the cord and into the power receptacle.
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Select the gear you will be using.
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Do not force the gear shifter when changing between gears. There is a
neutral position between gear 1 and gear 2.
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Change gears when the machine is stopped or almost stopped.
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Open the water valve to allow water to come out to the work surface.
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Turn the machine on by engaging the motor into the “on” position.
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CAUTION: When using the machine by hand, it is not recommended to use
the machine with the motor switch “hold” position engaged. It is
recommended to only use the finger trigger switch.
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ATTENTION: BE AWARE THESE MACHINES ARE EXTREMELY POWERFUL. THEY
HAVE A TREMENDOUS AMOUNT OF TORQUE WHICH MIGHT NOT BE SUITABLE
FOR ALL POTENTIAL USERS. ESPECIALLY IN LOW GEAR AND WITH LARGER BITS.
DESPITE THE SAFETY CLUTCH, THESE DRILLS CAN STILL INJURE THE USER. IF IN
DOUBT, CONTACT A PROFESSIONAL FOR ADVICE.
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Very slowly engage the cutting bit with the material surface by lightly engaging the
bit with the material.
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NOTE: During the initial stages of contact the bit may wander.
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NOTE: If wet drilling and not using a guide, a common way to start the hole
uses a 30 degree angle to slightly cut into the material. Once the bit has
bored slightly into the material, the user will slowly level the machine out
straightly. If unsure, it is recommended to contact a coring professional.
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After about 1/8” of cutting has been achieved in the work surface, slightly more force
can be applied. This will be the normal amount of force the rest of the hole.
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NOTE: Do not force the hole. Let the machine do most of the work.
Excessive physical effort should be avoided as it can cause damage to the
machine or cause injury to the user.
