Quincy Compressor QGD 40, Instruction Book

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Step Description
1 Run the compressor until warm. Stop the compressor after 3 minutes of unloaded operation.
Close the air outlet valve and switch off the voltage. Wait a few minutes and depressurise by
unscrewing oil filler plug (FC) just one turn to permit any pressure in the system to escape.
2 Air cooled units: loosen the vent plug (VP) of the oil cooler and wait for 5 minutes.
3 Remove drain plug (DP1) and open drain valve (Dm).
4 Collect the oil in a collector and deliver it to the local collection service. Refit and tighten the drain
and vent plugs after draining.
Close the drain valve (Dm).
5 Remove the oil filter (OF). Be aware that this filter has a left thread connection. Clean the seat
on the manifold. Oil the gasket of the new filter and screw it into place. Tighten firmly by hand.
6 Remove filler plug (FC).
Fill the air receiver (AR) with oil until the level reaches the filler neck.
Take care that no dirt drops into the system. Refit and tighten filler plug (FC).
7 Run the compressor loaded for a few minutes. Stop the compressor and wait a few minutes to
allow the oil to settle.
8 Depressurise the system by unscrewing filler plug (FC) just one turn to permit any pressure in the
system to escape. Remove the plug.
Fill the air receiver with oil until the level reaches the filler neck.
Tighten the filler plug.
9 Reset the service warning after carrying out all service actions in the relevant Service Plan:
For compressors with a graphic controller, see section
Service menu .
6.6 Coolers
General
Keep the coolers clean to maintain their efficiency.
Instructions for air-cooled compressors
• Stop the compressor, close the air outlet valve and switch off the voltage.
• Cover all parts under the coolers.
• Remove the service plates. (1)
Instruction book
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