
HDI-03-W
Mar ‘15
- 19 -
Compressed Air Filter Assemblies
Typical Filter Assembly.
As indicated previously, suitable filtration may be critical applications where a) a Refrigerated Air Dryer is used,
and b) where good quality air is required downstream. Shown below is a typical Filter Canister with the ‘Cat-eye’
Indicator. Also, shipped with the Filter Element is a label as shown below right. Affix the label to the outside of the
Canister, as it indicates the correct Filter Element when it comes time to re-order.
Filter Element Replacement.
To replace a dirty Filter Element:
•
Shut the Compressor Unit off.
•
Bleed any compressed air from the system to ensure there is no pressure at the Filter.
•
Unscrew the Bowl from the assembly, exposing the dirty Filter Element.
•
Twist the Filter Element until it comes loose.
•
Replace with a new Filter Element
•
Clean any debris from the inside of the Bowl, and re-install.
•
Cat-eye Gauge will return to
green
when Filter is once again under pressure.
Arrow Indicates
Direction of Air Flow
Cat-eye Gauge
Green = Filter Element is Clean
Red = Filter Element is Dirty
AutoDrain
Bowl which Contains
Filter Element and
AutoDrain
The label shown above is included with the
replacement Filter Element, and should be
affixed to the outside of the Bowl for future
reference.