"Camel" Liquid Ring Medical Vacuum
Medical Systems
B-7
B.5 Maintenance
B.5.1 Periodic Maintenance
B.5.1.1 General
a. Check that the seal liquid flow rate is as specified in Table B-1.
B.5.1.2 Monthly
a. Clean the seal liquid line strainer.
B.5.1.3 Semi-Annually
a.
Check and lubricate the motor bearings as specified in the motor manufacturer's standard
recommendations.
b.
Check for proper operation of the seal liquid solenoid valve.
B.5.1.4 Annually
a.
Check the inlet check valve for proper operation.
b.
Check that the vacuum relief valve is free to operate properly.
B.5.2 Bearing Lubrication
Refer to the motor manufacturer's instructions for motor bearing lubrication requirements.
B.5.2 Shutdown Periods
If the vacuum pump must be taken out of service for more than two weeks, perform the following steps:
a.
Remove the drain plug from the pump and drain all liquid compressant.
b.
On all iron vacuum pumps, apply a good flushing oil (rust inhibitor) at the liquid compressant inlet
and run the pump for not more than one minute to coat the interior with oil.
c.
Rotate the motor shaft by hand every two weeks during the shutdown period.
When the pump is to be put back into service, start it in accordance with the starting directions in Section B.3.
