1.5 Oil Filling
The pump is shipped without oil. After level installation and correct rotation has been established, fill the pump
with recommended motor oil through the oil fill port. Oil level should be at the 3/4 position on the oil sight
glass.
Non-detergent oil should be used. Airtech recommends either ATO-1000 for normal duty operation or ATO2000
for severe duty operation. ATO oil is a high quality vacuum oil that will provide longer running time between oil
changes, better lubrication at high operating temperatures and prolongs the life of the exhaust filter elements.
Oil detergent additives can cause exhaust filters to become clogged and shorten their service life.
The following table gives the approximate quantities of oil required for each model.
OIL
Do not add fill oil with pump running or through the inlet or exhaust ports! Do not overfill.
2.0 OPERATION
2.1 Start-up
Check rotation of the motor as described in paragraph 1.3 …Power Requirements.
Fill the pump with oil as described in paragraph 1.5 …Oil Filling
Start the pump with the inlet closed. Run the pump for a few minutes and then shut down. Check the oil level
again and make sure the oil level is between the ¾ mark and full on the upper oil sight glass.
Add oil if necessary. Pump oil should only be added when the pump is off and circulating oil has sufficient time
to return to the oil sump.
2.2 Stopping the Pump
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