3 Mounting and installation
Festo – P.BE-MPA-E N – 1309f – English 59
Note
Incorrect supplemental oil and an oil rate in the compressed air that is too high will
reduce the service life of the v alve terminal.
• Use Festo special oil OFSW-32 or the alternatives listed in the Festo catalogue (as
per DIN 51524-H LP32, basic viscosity 32 CST at 40 °C).
• The additional lubrication must not exc eed 25 mg/m
3
(ISO 8573-1 class 5).
• Check the correct lubricator setting ( subsequent sect io n)
This avoids operative malfunctions of the valves.
Setting the lubricator
With the machine running (typical operating status) 0.2 to max. 1 drop/min. or 0.5 to 5 drops/1000 l
air.
Check s etting
• Check the service units for condensate and lubricator setting twice a week.
The procedure described subsequently can be used to check the lubricator setting.
Proceed as follows:
1. Ascertain the actuator which is furthest from the lubricator.
2. Ascertain the valve terminal which c ontrols this ac tuator.
3. Remove the silencer, if present, from the port (3/5).
4. Hold a piece of white cardboard at a distance of 10 cm from the exhaust port.
5. Let the system run for some time.
There must be only a slight yellow colouring on the c ardboard. If oil droplets appear, this is an
indication that too much oil has been used.
Another indicator of over-lubrication is the coloration or status of the exhaust air silencer. A distinctly
yellow colouring of the filter element or drops of oil on the silencer indicate that the lubricator setting is
too high.
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