DFD6361-Maintenance - 第198页

B-126 Procedur es for checkin g operatio n of the air pressur e sensor (C ontinued) Step No. Do This (Continued from the previous section) 1 Wear the protective gloves. 2 Verify that the spindle is completel y stopped. 3…

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B-125
4-2-2. Checking operation of the air pressure sensor
Procedures for checking operation of the air pressure sensor
CAUTION
When you perform maintenance with the outer cover removed,
observe the following precaution. If you stand the removed outer
cover against the machine, you may receive injury by the cover if it is
toppled by the earthquake or like that.
When you take off the outer cover for maintenance purposes, store it
sufficiently away from the working area.
CAUTION
If the air supply is shut off during spindle rotation, the spindle seizes
up. Therefore, be sure to stop spindle rotation before shutting off the
air supply.
NOTICE
When you rotate the regulator knob, first raise the knob to unlock it.
After you finish necessary work, press down the knob to properly lock
it.
Regulator knob
Unlock
Lock
B-126
Procedures for checking operation of the air pressure sensor (Continued)
Step No. Do This
(Continued from the previous section)
1
Wear the protective gloves.
2
Verify that the spindle is completely stopped.
3
Remove the outer cover [A] and [B].
FRONT SIDE
[B][A]
4
Store the outer cover sufficiently away from the working area.
B-127
Procedures for checking operation of the air pressure sensor (Continued)
Step No. Do This
5
Pull up the regulator knob to unlock it.
6
Rotate the regulator knob counterclockwise to reduce the
pressure. Then verify that an error occurs with the alarm beeping
at the pressure level which was predetermined with the air
pressure sensor within the internal facilities control cover.
Regulator knob
Unlock
Lock
Reduce the
pressure
7
After verification, while checking the air pressure sensor, rotate
the regulator knob until the air pressure sensor reading reverts to
approximately 0.5MPa.
8
Press down the regulator knob to lock it.
9
Press the <Alarm Clr> button on the touch panel to clear the
alarm.
10
Reinstall the removed cover [A] and [B].