Norman 4500 Series Product Assembly

Be Sure There Is No Pressure In The Line Before Connecting/Disconnecting Filter Assembly.
I.

4500 SERIES FILTER HOUSING COMPONENTS

A. Head
B. Bowl
C. O-ring
D. Filter element
E. Filter element o-ring
II.

FILTER HOUSING DISASSEMBLY

A. Be sure to follow all safety rules, such as wearing protective goggles and gloves.
B. Use a wrench to engage hex nut on bowl and turn off in counter-clockwise direction.
C. Pull element off mandrel, exercising caution when removing element to prevent damage to pleated media, and
remove o-ring from element.
D. Remove o-ring that is engaged in head that seals head and bowl. When replacing 586 size element,
remove element adapter and reuse with replacement element. Do not discard 586 size element adapter.
III.

CLEANING FILTER HOUSING BOWL

A. Assess thread and seal areas for physical damage, inspecting full areas. The threads should look smooth with no
denting or galled areas and the seal area should have no scratches or dents. If there is any physical damage to
either area the bowl should be replaced.
B. Clean using mild soap and water as the cleaning agent and a fine bristle brush, move the brush in a counter-
clockwise direction from the seal area to the end of the thread run. This is repeated until all lubricants and fluids
that entrap debris to the thread and seal area surfaces are removed. With a clean air source, blow off any debris.
C. Re-inspect the threaded and seal areas again, as above, this time looking for debris as well. If the inspection
identifies debris in the threaded area, repeat the cleaning above.
IV.

FILTER HOUSING HEAD

A. Remove seal rings from the o-ring groove and assess threads and o-ring grooves for physical damage, inspecting
full areas. The threads should look smooth with no denting or galled areas and the seal area should have no
scratches or dents. If there is any physical damage to either area the head should be replaced.
B. Clean using mild soap and water as the cleaning agent using a fine bristle brush, moving the brush in a counter-
clockwise direction from the thread endpoint to the seal groove. The seal groove should be brushed to clear de-
bris. Seal ring material might require scraping with a plastic scraper. DO NOT USE A METAL SCRAPER!
C. Repeat until all lubricants and fluids that entrap debris to the thread and seal area surfaces are removed. With a
clean air source, blow off any debris.
D. Re-inspect the threaded and seal areas again, as above, this time looking for debris as well. If the inspection
identifies debris in the threaded area repeat the above cleaning procedure.
V.

RING SEAL INSTALLATION

NEW RING SEALS ARE REQUIRED ANYTIME A BOWL IS REMOVED.
The installation of the ring seals is critical to the filter housing performance. Only use seals provided by Norman
Filter Company for this filter housing. Note: Seals may appear to be identical and may have measurements that
appear to be the same. That does not make them the same.
VI.

FILTER HOUSING COMPONENTS

Installation of the o-ring into the o-ring groove in the filter housing head is accomplished by setting one ring seal
inner edge into the ring seal groove and progressively rolling the rest of the ring seal into the groove by sliding your
thumb along the surface of the seal coaching the seal into the groove. The coaching of the seal into the groove
should be done in either the clockwise or counter clockwise direction not both simultaneously. Do not allow any
debris to accumulate on the thread, seal groove or seals during the seal installation process.
Website: NormanFilters.com E-mail: Sales@NormanFilters.com Phone: 708-233-5521 Fax: 708-430-5961
NORMAN FILTER COMPANY
4500 SERIES FILTER
PRODUCT ASSEMBLY & CLEANING
WARNING !!!
The System Line Is A High Pressure Line.
PSM04-01 - REV9 • Effective: 08/28/13 • Page 1 of 2