FujiFilm PB-30 Operation Manual page 40

Chapter 6 Preparation and Inspection
(8) Press the toggle switch 2 once again.
Make sure that the inside light lights up and the balloon
deflates.
(9) Inflate the balloon again and make sure that there is no air
leakage by putting the end of the endoscope into water.
After confirmation, press the toggle switch 2 to deflate the
balloon by discharging air.
(10) Turn off the power switch.
6.5.2 Inspecting the Pressure Control Mechanism
(1) Turn on the power switch.
The power switch lights up in green and air is discharged
from the channel on the over-tube side and that on the
endoscope side.
(2) Press the display mode toggle switch to switch to the
pressure value display mode.
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