UH219
UH219 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
Lubricate element O-ring with clean system fluid.
Reinstall element in the shell assembly. Lightly lubricate
cover-to-head or tube-to-head (as applicable) O-ring with
clean system fluid and reassemble the housing until thread
bottoms. The cover or tube should be torque tightened
using a suitable socket wrench to 74 ft/lb or 100Nm.
O-ring sealing is not improved by over tightening
7.5
Bleed the system and check for leaks as per section 4.8.
7.6
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.
7.1.1 For UH219C series (cover service):
Open the vent plug (7) at the top of the filter one and
one-half turns. Open partially the blanking plug (6b) in
the filter head and drain fluid into a suitable waste
receptacle. This sequence may be long for high viscosity
fluids. Replace and torque tighten the blanking plug
to 38 ft/lb or 54Nm. Unscrew and remove cover (3) from
tube (2) counter-clockwise when viewed from above.
It will be necessary to use a 1" socket wrench on the
hexagon on the cover (3) to loosen the cover initially.
Note: The UH219C series assembly is equipped with Pall’s
'Auto-Pull' element extraction mechanism to facilitate element
removal. While removing the cap, tabs on the element endcap
lock into hooks in the cap and the element is automatically
pulled from the nipple.
7.1.2 For UH219H series (head service):
Open the drain plug (7) at the bottom of the bowl
assembly (tube and cover) and drain fluid from the bowl
into a suitable waste receptacle. Replace and torque
tighten drain plug to 12 ft/lb or 16Nm. Unscrew and
remove the bowl assembly (2 and 3) from head (1)
counter-clockwise when viewed from below. It will be
necessary to use a 1" socket wrench on the hexagon on
the cover (3) to loosen the cover initially.
7.2
Element replacement (UE219 Series): Remove filter
element (8), 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.
7.3
DO NOT run the system without a filter element
installed. For UH219C series: check that the O-ring (4)
between the cover (3) and tube (2) is not damaged.
For UH219H series: check that the O-ring (5) between
the tube (2) and head (1) is not damaged.
Use the replacement filter as indicated by the part
number on the element endcap.
WARNING:
FAILURE TO DEPRESSURISE THE FILTER BEFORE
SERVICING ELEMENT COULD RESULT IN
EXPLOSIVE LOSS OF FLUID, DAMAGE TO
EQUIPMENT AND POSSIBLE PERSONAL INJURY.
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 element will cause the filter to go on
bypass.
