Section 6 Troubleshooting
6-2
3. Push the tubing back on the hydrophobic lter barb. Pull the tubing o the vacuum right-angle tting on
the center of the canister lid. Turn on pump. Put your nger over the tubing. If there is not good suction,
then the section of tubing needs to be replaced.
4. Push the tubing back on the vacuum right angle tting on the center of the canister lid. Now pull the tubing
o the patient right angle on the perimeter of the lid. Turn on the pump. Put your nger over the open
patient right angle. If you still have good suction, then the pump, the lter, the tubing between the lter and
canister, and the canister itself are okay, So the only thing left is the long section of tubing between
the canister and the patient. Ensure there isn’t a kink in the tubing, or that tubing isn’t under a caster.
Otherwise, assume it needs to be replaced.
Do the above steps in the exact sequence stated and you will nd the cause of the low suction.
To prevent pump problems:
Filters will eventually clog with particulate from the air being sucked through them. Change as needed to
prevent extra wear on the pump because it is having to pull air through a clogged lter. Replace lters once a
month as a general rule, but depending on your usage, you may need to replace sooner or not as frequently. If
suction is good at end of month, test again in 2 weeks. Always consider replacing the lter if suction is reduced,
following the steps above to identify which component is aecting performance.
6.2. Troubleshooting the S 7401355 Suction/Pressure Foot Switch
Follow the steps below to check to see if the S 7401355 Foot Switch is functioning properly.
5. Switch the Foot Switch control panel switch to the “OFF” position. Press the right-side of the S 7401355 foot
switch and listen for the pressure pump to activate. Hold your hand over the end of the pressure hose to
verify that air is coming out.
6. Lift your foot o of the S 7401355 Foot Switch and with the control switch still in the “OFF” position
press the left -side of the foot switch. Listen for the vacuum pump to engage. Using a piece of paper, verify
that the vacuum is working by placing the paper over the end of the vacuum hose. If the vacuum holds the
paper to the end of the hose, the vacuum is working.
NOTE
!
To use the foot switch, the switch on the panel must be set to the “OFF” position.
Turn the Control Panel Switch
to the OFF Position
Figure 6-2 Foot Switch Control Panel
VACUUM
PRESSURE
OFF
MAIN
POWER
MAXI
TM
S M R
I
O
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