PB2
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16
3.6. Operating
After you connect the machine to the correct supply, press the ON/OFF lever to start.
In the electric/battery motor, set the gear 1. In the battery motor, set the gear 1
and the maximum torque, and then press and hold the ON/OFF switch. To lock the
switch in the position ON (not available in the battery motor), press the ON switch
lock before you release the ON/OFF switch. To adjust the speed, use the dial or, in
the battery motor, change the force you apply on the ON/OFF switch.
Apply the coolant on the working edge. Then, rotate the feed knob to the right to
bring the tool bits close to the pipe. If needed, put the handle into the knob hole and
rotate the handle to start the feed (
1
, Fig. 7).
After some rotations, retract the tool bits from the workpiece (2). Then,
use the handle to tighten the knob and remove the clearance (3)
.
Fig. 7.
Using the handle
If the pipe end is not perpendicular to the pipe axis, the tool bit will cut only a
small part of the pipe during initial rotations. Thus, use a low feed rate until the tool
bit is in continues contact with the pipe during at least one rotation. The feed is
1.5 mm (0.06
″) per one full turn of the feed knob.
Rotate the feed knob to the right to continue machining. Use such a feed rate so
that the chip is continuous. If the feed rate is too low, only small chips are removed.
If the feed rate is too high, machining is difficult and the chips are rough or torn.
1
3
2
