SER
VICING
68
PULSE Installation, Commissioning and Servicing Manual - Revision 19
9
DEF FILTER CARTRIDGE REPLACEMENT
It is recommended that goggles and gloves are worn when dealing with fluids
under pressure.
The filter cartridge should be changed when:
• there is a noticeable reduction in fluid flow.
• the delivery system reaches the maximum recommended differential pressure.
Procedure
(a) Shut off pressure to the dispenser.
(b) Slowly open the drain plug at the bottom of the
filter housing to release any remaining pressure.
(c) Using the rod tool provided, unscrew the ring-
nut.
(d) Remove filter housing and replace used filter
cartridge with a new one.
(e) Inspect O-Rings to ensure they are free of
defects and/or debris.
(f) Inspect the O-Ring groove to ensure it too is free
of debris etc.
(g) Refit the filter housing, making sure it is properly
aligned with the head.
(h) Refit and tighten the ring nut.
(i)
Return the rod tool to its storage location in the
bracket.
(j)
Clean the Y Strainer filter if present.
head
gasket
O-Ring
housing
ring nut
rod tool
drain plug
Figure 32�
Filter Housing and Y Strainer
Y Strainer
Figure 33� Removal of the Filter Housing
