PRO 5 PB/PBE/PBC
This document is protected by copyrights.
Copying, using, or distributing without permission of PROMOTECH is prohibited.
14
Continue
machining
by
rotating
the
spoke
handles
to
the
right. Use adequate feed
rate to establish a continuous chip cut. If the feed rate is too slow, only light stringer
chips will be removed, while too fast feed will make machining difficult and the chip
will start to have a rough or torn appearance. Never allow the tool bit to burnish the
surface. If chatter problems occur, reduce the feed rate and speed, and make sure
the type
of
tool bits corresponds to the material and the tool bits are sharp. Stainless
steel, which work hardens, must be worked with a fast enough feed, 0.08
–0.15 mm
(0.003
–0.006’’) per rotation, to stay under the work hardened surface.
If the machine with electric motor becomes overloaded, the motor will be shut off
automatically.
However,
prevent
the
motor
from
overloading and, if possible,
machine
hard
materials with not too fast feed rate and rotational speed.
After the pipe end is machined completely, discontinue rotating the spoke handles
and allow several more turns to improve the finish of the surface.
Then,
turn
off
the
motor
by
using
the
ON/OFF
lever/switch, and wait until the rotation stops. Separate
the tool bit(s) from
the
pipe
end
to
at
least
3 mm
(0.12’’) by rotating
the
spoke
handles
to the left.
Finally,
loosen
the
draw
nut
with
the
13 mm socket wrench to release the
clamping, and then remove the machine from the pipe. Use petroleum ether to clean
the pipe from excess coolant.
Clean
the
machine
with a cotton cloth without using any agents.
