PTA522, PTA523 and PTA524 Automatic Silent Compressors
Chapter 3: Operation
Rev A August 2021
Page 9
3.4.7. Maintenance
It is essential that the following maintenance schedule is adhered to, in order to ensure the effective long-term functioning
of the compressor.
Once a Day
Drain the water collected in the air outlet pressure regulator by pushing the needle valve button at the base of the filter
bowl as shown in as Figure 11: the operation should be done with the tank under pressure.
Figure 11 Filter Housing Water Drain
Once a Week
Check the oil level via the view glass. When the motor is off, the oil level must correspond to the one shown by the label.
Perform a manual draining cycle by pressing "TEST" button on the timer (see section section 3.4.4: Draining the
Condensate). Empty the drainage bottle.
Note.
The condensate will include a small amount of oil mixed with the water, and should not be poured down the
sink. Dispose of responsibly according to local regulations.
The mixture of oil and water in the drained condensate appears as a brown colour in the bottle, and is
completely normal.
Once a Month
Check the integrity of the compressor, including: possible connectors slackening, pressure hose wear, screws tightening,
electric circuit integrity, etc.
Clean the compressor with a soft cloth; excessive dust and dirt can prevent the compressor from cooling efficiently.
Every 3 Months
Check and clean the air intake filter with compressed air. Replace as necessary.
The lower portion of the outlet pressure regulator (Figure 12) contains a coalescing cartridge to collect condensate in this
part of the unit. Unscrew, disassemble and clean both the filter bowl and plastic valve placed inside. This operation must be
done with the tank’s air pressure vented.
Figure 12
Accessing the coalescing cartridge on the pressure regulator
