Xylem H-310 - Manual (Page 20)

4-2 Maintenance
H-310
Figure 4-1 H-305 Dry Air System
4.3 Cleaning the Port Screen
Occasionally the port screen and the pressure ports may need to be cleaned, rinsed out or
replaced . Replacement screens are available if needed. Figure 4-2 below shows the location of
the stainless steel screen at the end of the sensor housing.
To remove the stainless steel screen follow these steps.
Step 1- Force the rubber bumper ring up onto the enclosure. This rubber ring may be stiff, but it
will move. Be careful not to tear the ring. Glycol on the rubber ring may be used to aid
you in this step.
Step 2- Slide the plastic slip ring back towards the rubber ring. The stainless steel screen
should now be free.
Step 3- Remove the stainless steel screen, under the stainless steel screen you will find a plastic
filter screen. This should be removed also.