AGP DM20 Sicherheitshinweise Seite 8

LIST OF CONTENTS
• Diamond core drilling machine.
• Water feed assembly
• Wrench
OPERATING INSTRUCTIONS
1) MOUNTING THE CORE BIT
CAUTION: Ensure that the threads of the spindle and the core bit match. Attempting to mount
mismatched threads will result in damage to both threads.
The spindle thread is 1-1/4" UNC. Ensure both the core bit and the machine spindle are clean. Any debris could
cause excessive run-out of the mounted core bit. Excessive run-out can cause premature failure of the core bit
and/or a safety hazard.
Tighten the bit to the spindle using two wrenches.
BIT THREADING FUNCTION
With heavy, large diameter bits, the Bit Threading function can assist in threading the bit onto the spindle.
Align the spindle with the bit, and with the motor OFF, press the Bit Threading Button on the control panel. (This
is a latching switch, so press once to activate, and once to stop.) A few moments after pressing the button,"CH"
will be displayed on the information screen, and the spindle will continuously rotate slowly clockwise. When
threading is completed, press the Bit Threading Button again to stop. Final tighten the bit with two wrenches.
Choosing the correct core bit for the job
Ensure that the bit you are using is suitable for the material you are drilling.
We recommend always using wet-type (sintered) bits with this machine.
2) WATER SUPPLY
Water is a basic requirement for diamond core drilling. The water serves as a
coolant to avoid the working surface at the tip of the bit from overheating. In
addition, the water is necessary to cool the motor and controller. Never use this
machine without water feed.
To connect the water supply. Attach the quick-release water coupling to a
water hose.
GB
8
Open
Water Feed Valve
Closed