User Guide

8
HX SERIES USER GUIDE
7.2 Cleaning the Float Drain
Hazard due to a sudden release of pressure!
Depressurize the lter before carrying out any work on the lter! A sudden escape of pressure may
cause serious injuries.
• Block compressed air supply to the lter.
• Open the drain plug of the oat drain to depressurize the lter.
• Give the lower housing a full turn in clockwise direction and take it off downwards.
• Replace seal included in the replacement element kit.
• Undo the lock nut and take the oat drain out of the bowl.
• Insert a new or the cleaned oat drain into the bowl and tighten the lock nut by hand.
• Apply a thin coat of lubricant on the thread of the bowl. Lubricant also included in kit.
• Align the bowl vertically below the lter head using the markings and give it a full turn
to fasten it.
• Open the supply line to the lter.
• Check the lter for leaks. A minimum pressure of 15 psig is required to properly close the
oat drain.
8. Remedy for Malfunctions
8.1 Differential Pressure Gauge
After a pressure peak, e.g. when a valve was opened abruptly, the needle of the differential pressure gauge is
locked. The needle is behind the stop in the red area.
Warning!
Make sure to check the lter element since it may have been damaged. Replace any damaged element. After
testing the lter element you must reset the needle of the differential pressure gauge:
• Carefully pry out the viewing glass on the side of the stop pin with a screwdriver.
• Carefully lift the needle and move it back over the stop.
• Insert the viewing glass again and push it in until it is rmly seated.
8.2 Poor Filtration Performance
When the ltration performance is insufcient even with a new lter element, incorrectly chosen conditions
of application or ow rates can be the reason. Contact your sales partner to nd a solution in such a case, or
phone [phone] for technical assistance.