Troubleshooting - BeaconMedaes Lifeline Camel Installation, Operation And Maintenance Manual

"Camel" Liquid Ring Medical Vacuum
B.4

Troubleshooting

Nash Type MHF vacuum pumps require little attention other than periodic checking of the ability of the vacuum
pump to obtain full volume or maintain constant vacuum. If operating difficulties arise, make the following checks:
a. Check for proper seal liquid flow rate. The seal liquid flow rate shall be as specified in Table B-1.
b. Check for the correct direction of pedestal assembly or drive motor shaft rotation as shown by the arrow
cast in the head of the vacuum pump.
c. Check that the vacuum pump operates at the correct rpm-not necessarily the rpm stamped on the vacuum
pump nameplate.
d. Check for an obstruction in the discharge piping. Backpressure at the pump discharge reduces capacity,
reduces vacuum, and increases the driving horsepower that is required.
e. Check for a restriction in the air inlet line by reading the vacuum gauge in the inlet piping, as close to the
pump as possible. Undersize inlet piping and line obstructions produce a higher vacuum on the vacuum
gauge than the readings obtained at the work or process.
f. Check process piping for leaks and/or malfunctioning valves.
g. If the pump is shut down because of a change in temperature, noise and/or vibration from the normal
operating conditions, check the condition of the pump pedestal or motor bearings, or coupling. Contact
your BeaconMedæs representative for assistance.
h. If the pump assembly causing the trouble has been dismantled previously, check for improper re-
assembly of pump and pedestal assembly parts.
If the trouble is not located through these checks, call your BeaconMedæs representative before dismantling or
disassembling the pump. He will assist in locating and correcting the trouble.
B-6
Medical Systems