Pentax EC-380LKp, Owner'S Manual, Page: 12 / 52

- 9 -
3) Inspection of Air/Water Feeding
a) Prior to use, the air/water feeding valve (OF-B121)
should be inspected. Remove the valve from the
control body and make sure that the black rubber
check-valve (OE-C14) in good condition is prop-
erly attached to the bottom of the metal valve stem.
b) If the rubber check-valve is missing or not attached
properly, correctly reposition the check-valve by
turning it several times on the air/water valve stem.
For proper positioning, there should be no clear-
ance (gap) between the rubber check valve and the
metal air/water valve stem
c) To confirm that the check-valve is attached properly, visually inspect the check-valve and install the air/
water valve into the air/water cylinder on the control body. Proceed to test the air delivery function.
d) Connect the scope to the video processor. Turn air pump “ON” to desired pressure setting.
Place the scope distal tip into sterile water and confirm that no air bubbles exit the distal air nozzle.
e) To inspect air delivery, cover the hole at the top of
the air/water valve and confirm that air flows freely
from the air/water nozzle at the scope disital tip.
f) By depressing the air/water feeding valve, the water
delivery system is activated. Water should flow in a
steady stream from the air/water nozzle at the distal
tip of the endoscope. (This may take several sec-
onds on the initial attempt.)
USE STERILE
WATER ONLY.
WARNING:
A worn or damaged check-valve should be replaced with a new one which has already been subjected
to a high-level disinfection or sterilization procedure (Check valve set, model OE-C15 is optionally avail-
able). For repeated use, always ensure that the check-valve has already been reprocessed. A dam-
aged, worn or missing check-valve could create continous air flow or excessive air insufflation and result
in potential patient injury such as pneumatic perforation. If the check-valve is not attached properly, it
could fall off during the endoscopic procedure and result in potential injury to the patient.
CAUTION:
If there is any doubt as to the suitability for use of the rubber check-valve, replace with a fully reprocessed
one prior to each procedure. A set of 10 pieces of the OE-C14 check-valve are available in a package as
model OE-C15.
WARNING:
If air bubbles are observed during the test, the rubber check-valve MUST BE REPLACED. Repeat the
test procedure with a new check-valve (OE-C14).
OF-B121
OE-C14
Don’t let the skirt
fold under
Action
Result
Air
Feeding Water
Feeding
–