P/N 80679, Rev. 10 Page 59
4.3 MACHINING
See Section 2.3 on page 21 for information on the location and function of the
controls. See Section 3.12 on page 48 for information on the feed box.
To avoid serious injury to hands or arms, do not reach inside the swing of
the turning arm during operation or while the machine is energized.
4.3.1 Pneumatic-powered machining
If the machine stops moving unexpectedly, de-pressurize and lock out the
pneumatic safety valve located on the pneumatic conditioning unit before
performing any troubleshooting.
Refer to the pneumatic conditioning
unit (PCU) controls described in
Section 2.3.1 on page 21 and shown in
Figure 4-2.
Do the following to operate the
machine:
1. Push the START button on the
PCU.
2. Use the SPEED ADJUSTMENT
VA LV E to turn on the drive
motor and to adjust the drive
motor speed to achieve the
desired rotation rate.
3. Turn on the FEED ON/OFF
VA LV E .
4. When the cut is complete, first
stop the feed and then stop the
machine rotation.
4.3.2 Hydraulic-powered machining
Refer to the hydraulic power unit (HPU) controls described in Section 2.3.2 on
page 21.This type of machine has a hydraulic powered rotation with a pneumatic feed.
FEED
ON/OFF
VALVE
SPEED ADJUSTMENT VALVE
FIGURE 4-2. PNEUMATIC POWERED MACHINING VALVES
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