Specifications

AIREFRIG AUSTRALIA PTY LTD
ALL PRICES ARE EXCLUSIVE OF GST
RECOMMENDED LIST PRICES
SUBJECT TO CHANGE WITHOUT NOTICE
A.B.N. 95 008 761 573
EFFECTIVE MARCH 2014
527
VACUUM PUMP PERFORMANCE CHECK
Vacuum Pump Quick Performance Check
This document describes a simple and quick method to conduct a basic operational and performance
check on a vacuum pump.
* Please ensure that your vacuum pump is in sound electrical and mechanical
condition prior to applying electrical power and operating.
1. Check the oil level in the sight glass is between the minimum
and maximum level indicators, oil should look clean and clear if
the pump has been recently serviced. Oil colour can vary from
water clear to honey colour depending on the brand, but it should
look translucent and not be dark or opaque which could indicate
the presence of contaminants.
2. Ensure the pumps flare inlet port connection that you will be
using is clean and dry, give it a wipe with a clean dry cloth to
remove any debris.
3. Attach your ball valve (ensure the tap is closed) with the vacuum gauge directly to the inlet port.
In some cases you may require the 3/8" female to 1/4" male adaptor depending on the individual vacuum pumps
inlet configuration. In some case you may also need to use the supplied 1/4" ‗ T ‘ adaptor and cap the unused ‗ T ‘
adaptor 1/4" male port.
4. Start the pump and allow it to run for a few minutes before opening the ball valve. Allow the pump to evacuate
the ball valve and vacuum gauge assembly for a couple of minutes prior to checking the vacuum reading.
Older model vacuum pumps may require a longer warm up period due to their internal construction, be guided by
the pumps owner who should know his equipment.
5. The best practice is to always close the ball valve prior to stopping the pump to reduce the chance of oil
migrating into the vacuum gauges sensitive sensor assembly.
6. If the reading is above 400 microns the pump could be internally worn, in need of an oil change, repairs, have an
air leak or perhaps faulty port caps on unused inlets.
Setup requiring the
3/8" to 1/4" adaptor
Typical test setup
(