HMPRO36AD OPERATOR’S MANUAL
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PRO 36 AD
3.3. Preparing
Before starting, clean steel parts, including the arbor, from anti-corrosion coating
used to preserve the machine for storage and transport.
Install the handle as described before.
Based on the hole size desired, select the proper annular cutter or drill bit with a
19 mm Weldon shank. Next, use a clean and dry cloth to wipe the arbor and cutter
(drill bit), and then install the cutter (drill bit) into the arbor as described before.
Position the machine on a flat ferromagnetic surface with a thickness of at least
6 mm (1/4’’). The workpiece must be clean, without rust or paint that decrease the
holding force. The force value depends also on the type, thickness, flatness, and
roughness of the surface, fluctuations of the supply voltage, and the wear of the
electromagnetic base bottom. Some types of steel are non-ferromagnetic (do not
conduct magnetic flux) and the machine is not capable to clamp onto them.
Connect the machine to the power source, and set the MAGNET switch to ‘I’ to
turn on the clamping of the electromagnetic base.
Use the safety strap to prevent the machine from falling and avoid possible injury
to the operator if the machine loses magnetic clamping in case of a power loss. To
protect the machine, insert the strap through the opening in the machine body and
attach the machine to a fixed structure. The strap must be tight, not twisted (except
standard twist for horizontal drilling from Fig. 5c), and must be replaced every single
time the machine hangs on the strap as a result of coming loose from steel. Never
insert the strap into the buckle from the front (Fig. 5d).
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