Product Manual

4 Maintenance
4.1 Maintenance
When maintaining the filter, keep in mind the following:
• On filters with manual drain valve, open the latter at regular intervals to evacuate collected
dust or liquid.
• In case an automatic drain valve or a solenoid timer drain is installed, manual draining can
be carried out by turning the connection nipple of the automatic drain valve
counterclockwise.
When the filter has to process air with a temperature higher than the specified maximum
temperature, the filter's lifetime will be reduced considerably!
4.2 Filter element change with inPASS™
inPASS™ instructions
During a service event (e.g. filter element replacement, drain replacement), the inPASS™ valve
can be used to isolate the filter element and the drain from the compressed air flow by bypassing
the filter housing.
It is mandatory to use the lock-out feature as a safety measure to lock the inPASS™ valve
in position, both when the filter is in use and when it is being serviced. This ensures the
inPASS™ can’t be used accidentally during service or cut of the compressed air flow during
normal operation of the filter. A padlock can be used to prevent unauthorized use of the
inPASS™ functionality.
The inPASS™ functionality should only be used during filter element replacement;
continuous activation of the inPASS™ may lead to irreversible damage to the inPASS™.
Following steps can be taken to change the filter to inPASS™ mode for a service event:
1. Unlock and remove the lock from the lock-out feature.
Slide the lock-out feature sideways to free the hexagonal nut for rotational movement.
For safety reasons, the inPASS™ should never be operated while the bowl is dismounted
(fully or only partly) from the head.
Instruction book
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