Festo CPA VI Series Manual page 46

3. Installation
3-6
Checking the lubricator setting
Proceed as follows:
Check the service unit in respect of condensate and lubri-
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cator setting twice a week.
1. Ascertain the cylinder which is furthest from the lubricator.
2. Ascertain the valve terminal which controls this cylinder.
3. Remove the silencer, if fitted, from connection 3/5.
4. Hold a piece of white cardboard 10 cm in front of the
exhaust port.
5. Let the system run for a short period.
– There must only be a slight yellow colouring on the
cardboard. If oil drops out, this is an indication that
too much oil has been used.
A further indication of excessive lubrication is the colouring
or status of the exhaust silencer. A distinctly yellow colouring
of the filter element or drops of oil on the silencer indicate
that the lubricator setting is too high.
Festo P.BE-CPA-EN en 0207c