Chapter 4: Routine Maintenance
Surgivet
®
Universal CDS 9000 Operation Manual
4-5
Use a pair of thin needle-nosed pliers to remove the ball from inside of the body. Do not lose the ball!
3.
Figure 4-4: Remove Ball
Place the ball on a soft cloth to avoid loosing the ball.
4.
Use a soft clean cloth and 70% isopropyl alcohol to clean the ball. Ball must be completely dry before
5.
reassembling.
Use a Q-Tip dipped in 70% isopropyl alcohol to clean the teflon o-ring located inside the chrome body.
6.
Apply a small amount of Krytox
7.
®
lubricant to the threaded areas on the knob threads.
WARNING! Do not apply Krytox
®
to the inside of the Pop-off Valve. Doing so will cause the ball to stick
and create a harmful increase in patient pressure.
Insert ball and make sure that it rests on the teflon o-ring.
8.
Screw knob assembly back into the chrome body and tighten set-screw.
9.
Test movement of the Valve’s knob by opening and closing completely several times. The knob should move
10.
smoothly.
Open Pop-Off Valve completely.
11.
WARNING! Failure to completely open the Pop-off Valve during Normal Operation may result in serious
injury or death. Verify the Pop-off Valve is in the Open position before use.
Test the relief function of the Pop-off Valve by flowing oxygen through the machine and partially occluding
12.
the breathing circuit. The breathing bag should fill and the manometer will build pressure to 2 cm H
2
O and
then release. Place your hand in front of the Pop-off Valve’s outlet to confirm the release of oxygen. The
manometer should return to zero.
Close the Pop-Off Valve completely.
13.
Test the sealing function of the Pop-off Valve by performing a Pressure Test. If the Pop-Off Valve leaks
14.
between the Chrome Body and the Black Base, the o-ring will need to be replaced. If o-ring needs to be
replaced, proceed to steps 15 - 21.
