User Guide
7
HX SERIES USER GUIDE
7. Maintenance
Always pay attention to the prescribed service intervals. Proper operation of the lter cannot be assured in case of
non-compliance.
• Weekly: Check the oat drain for tightness and proper functioning once a week. You should not hear a permanent
ow noise coming from the drain. If so, the drain must be replaced.
• 6 months - 1 Year: Element replacements are most often determined by the specic application each lter
is employed in. As energy costs rise, many customers are balancing the cost of energy with the cost of the
replacement element. A new element will contribute less pressure drop than a used element, meaning that less
energy need be purchased to overcome pressure drop. Typically a high-efciency element like those used in the
HX-Series will be changed every 6 mos. to 1 year. While changing the lter element, it is a good idea to check the
oat drain for contamination, and if needed clean it with a soapy water solution.
The following factors can contribute to require a premature element change out: high temperatures, high oil mist
concentration, and high relative humidity. Good lter performance is also dependent on the performance of other
compressed air system components. Only through analysis of your specic system can element changeout intervals
be determined.
7.1 Replacing the Filter Element
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.
• Depressurize the lter. To do so, you may have to open the condensate drain at the lter bottom.
• Give the lter‘s bowl a full turn in clockwise direction and take it off downwards.
• Take out the lter element and dispose of it according to the operating instructions.
• Replace seal included in replacement element kit.
• Insert the new lter element: The locating tabs t the recesses in the bowl exactly and ensure the
correct seat of the lter element.
• Apply a thin coat of lubricant on the thread of the lower housing. Lubricant also included in kit.
• Align the bowl vertically below the lter‘s head using the markings and give it a full turn
to fasten it.
• If necessary, close the condensate drain and open the pipe to the lter.
• Check the lter for leaks.