Preparing The Air (For Machine With Air Motor); Operating - Promotech PRO 5 PB Operator's Manual

3.5. Preparing the air (for machine with air motor)

Connect the machine to a correctly prepared air source of sufficient purity by using
a hose with the internal diameter of at least 12 mm (0.5''). The air source must be
equipped with an air preparation unit: filter, regulator, and lubricator (FRL). To achieve
full power of the air motor, all internal diameters of the air source must be at least
10 mm (0.4'').
Maintain the FRL unit as required to keep the water trap drained, filter cleaned,
and the lubricator oil reservoir filled so that there is a drop of oil every 2–5 seconds.
Use only oil whose ignition temperature is more than 260°C (500°F). If the machine is
to be left idle for at least 24 hours after the work is finished, increase the delivery of oil
and run the motor for 2–3 seconds, which will prevent rusting and degrading of the
rotor vanes.

3.6. Operating

After the machine is connected to a proper supply, press the ON/OFF lever to start.
For the machine with an electric motor, set the gear 1 and, in cordless motor, the
maximum torque, and then press and hold the ON/OFF switch. To lock the switch in
the position ON (not available in cordless), press the ON switch lock before releasing
the ON/OFF switch. To adjust the speed, use a dial or, in cordless motor, change the
extent to which the ON/OFF switch is pressed.
Spread the coolant on the working edge. Then, bring the tool bit(s) close to the
pipe by rotating the spoke handles to the right. If the pipe face is not perpendicular to
the pipe axis, the tool bit will machine only a small segment of the pipe during initial
rotations. Thus, the feed rate should be chosen slow until the tool bit is contacting the
pipe continually during at least one rotation. The axial feed is 0.11 mm (0.004'') per
graduation (Fig. 6) or 2 mm (0.08'') per one complete turn of the spoke handles.
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0.11 mm (0.004'')
Fig. 6. View of the feed indicator
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PRO 5 PB/PBE/PBC
Feed direction