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CAUTION: READ THE WHOLE INSTRUCTIONS MANUAL
Principle of Annular cutter's work
This drilling machine's spindle has a 19mm Weldon Shank type and is specifically designed for use with Annular cutters.
Annular cutter (1) is located inside arbor body (2) and is fastened with grub screws (3). When fastening the cutter
in the arbour, ensure that the grub screws are firmly tightened to avoid them coming loose during operation. It is
important to position the cutter in relation to the arbour in such a way that fixing flats on the cutter shank are
positioned opposite to the grub screws (3). Both grub screws(3) should be used to fasten the cutter. The Pilot Pin (5)
is located inside the cutter to easily position the annular cutter over centre of a planned hole. During drilling as the cutter
goes into the material, the pilot pin moves back into the arbour body and pressurizes the discharge spring (4).That spring
ejects the slug which is a by-product of drilling the hole with a centre free cutter.
The machine is supplied in a metal box. Some components of the
drilling machine are coated with grease film for protection during transit and
storage. Prior to use of the machine this should be wiped clean.
a) In order to start the machine press the magnet switch (1) on "I". Now you can start the motor by pressing
Start-Stop Switch (2) green button "I"
b) Stopping the motor is executed with red button „O" ( the motor is switched OFF but the electromagnetic base is still ON).
c) The speed at which the spindle rotates can be controlled by turning the speed control dial (3) clockwise to increase,
or anti-clockwise to decrease.
d) To move machine into next drilling spot, stop the motor as described above and push the magnet switch (1) to the
position "O".
NOTE: As a power saving function, Switching the Magnet Switch(1) to "I" will supply the electromagnet with
50% power. Switching the Start-Stop Switch(2) to "I" will increase the electromagnet to 100% power.
8
8
START UP AND OPERATION
BEFORE ATTEMPTING TO START UP
CONTROL PANEL
Control elements include:
-
Magnet Switch (1),
-
Start-Stop Switch (2),
-
Speed Control Dial (3),
www.itmtools.com.au
HMPRO75 OPERATOR'S MANUAL
Fig. 1
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