UH239
UH239 Series
H I G H P R E S S U R E F I LT E R S
s e r v i c e
i n s t r u c t i o n s
7.4
DO NOT run the system without a filter element
installed. Check that the O-ring (4) between the cover (3)
and tube (2) is not damaged. Use the replacement filter
element as indicated by the part number on the
element endcap.
7.5
Lubricate element O-ring with clean system fluid.
Reinstall element in the shell assembly. Lightly lubricate
cover-to-head O-ring with clean system fluid and
reassemble the housing until thread bottoms. The cover
should be torque tightened using a suitable socket
wrench to 74 ft/lb or 100Nm.
7.6
Bleed the system and check for leaks as per section 5.2.
7.7
After element change ENSURE DIFFERENTIAL
PRESSURE DEVICE IS RESET BY PUSHING IN THE
RED BUTTON; electrical switches reset automatically.
When system reaches normal operating temperature,
check that the electrical switch has not actuated and/or
the visual warning button has remained depressed. If
visual indicator rises due to a cold start condition, reset
again as per section 6.
8
Warranty, Limitation of Liability
and Remedies
THERE IS NO WARRANTY OF MERCHANTABILITY OR
FITNESS FOR ANY PARTICULAR PURPOSE WITH RESPECT
TO ANY OF THE PRODUCTS, NOR IS THERE ANY OTHER
WARRANTY EXPRESS OR IMPLIED, EXCEPT AS PROVIDED
FOR HEREIN.
For a period of twelve months from the date of delivery from
Seller or three thousand hours of use, whichever occurs first
(the "Warranty Period"), Seller warrants that products
manufactured by Seller when properly installed and
maintained, and operated at ratings, specifications and design
conditions, will be free from defects in material and
workmanship. By way of explanation and not limitation, the
Seller does not warrant the service life of the filter element as
this is beyond the Seller's control and depends upon the
condition of the system into which the filter is installed.
4
7
Filter element installation / servicing
During servicing, the external surfaces of the filter assembly
must be cleaned to remove any dust deposits.
Servicing must be conducted using suitable tools that do not
present a hazard. Servicing must not be carried out when a
potentially explosive atmosphere is present.
Refer to Service Parts List (Section 9) for item numbers for
applicable replacement element series. Remove and replace
element as follows:
7.1
Turn off and depressurize the system.
Open one or both drain plugs (8) on the filter head
and drain the filter housing. Reinstall and tighten
the drain plugs.
7.2
Unscrew and remove the filter bowl assembly (2) from
head (1) counter-clockwise when viewed from below. It
will be necessary to use a 1" socket wrench on the
hexagon on the bowl to initially loosen the bowl.
NOTE: The UH239 series assembly is equipped with Pall’s
'Auto-Pull' extraction mechanism to facilitate filter element
removal. While removing the cover, tabs on the filter element
endcap lock into hooks in the cover and the element is
automatically pulled from the nipple.
7.3
Element replacement (UE219 Series): Remove filter
element (9), if already fitted, and carefully inspect the
interior surface (flow through the element is in-to-out) for
visible contamination. Normally no dirt should show, but
visible dirt or particles can be an early warning of
system component failure. Discard both the filter
element and its O-ring. The filter element is NOT
CLEANABLE. Any attempt to clean the filter element
can cause degradation of the filter medium and allow
contaminated fluid to pass through the filter element.
WARNING:
DO NOT ATTEMPT TO CLEAN OR RE-USE THE
ELEMENT.
ONLY USE GENUINE PALL REPLACEMENT FILTER
ELEMENTS. USE OF SUBSTITUTE ELEMENTS MAY
INVALIDATE PRODUCT WARRANTY.
CAUTION:
Filter elements should be replaced upon indication
or at specified intervals, six months maximum.
Failure to change the filter element will cause the
filter to go on bypass.
