Orival OR-02-PE, Руководство по эксплуатации и обслуживанию

Страница: 35 / 51

ORIVAL, INC. • 213 S. Van Brunt St. • Englewood, NJ 07631 • (201) 568-3311
29
SECTION 10 - REMOVAL/INSTALLATION OF MAJOR COMPONENTS
NOTE:
Prior to performing any procedures described in this section, it is necessary to
first isolate and drain the filter as outlined in Sections 6.1 and 6.2.
10.1 - COARSE SCREEN REMOVAL AND INSTALLATION
1. Remove the nuts and washers from the cover studs or bolts.
2. For filters with up to 8" flanges, remove the cover and place it out of the way. Larger
filters are equipped with a longer stud, which is used for support of the cover.
The cover is heavy and attempting to remove the cover without assistance may
result in personal injury.
3. For filters with up to 8" flanges, the coarse screen can now be easily pulled out of
the filter. For filters with 10’’ flanges or larger, the coarse screen is threaded into
the fine screen, and the coarse screen must either be unscrewed off the fine
screen or removed with the fine screen as an assembly. A special extraction tool
is available from ORIVAL to simplify the removal process. A set of spanner
wrench tools is available to assist in the separation of the coarse and fine
screens.
4. Installation is in the reverse order of removal.
10.2 - FINE SCREEN REMOVAL AND INSTALLATION
1. Remove the coarse screen as described in Section 10.1.
2. For filters with up to 8’’ flanges, the fine screen is now visible inside the filter body.
Removal is accomplished through the application of light tension on the fine
screen handle. CAUTION: Excessive force may result in the fracture of the fine
screen handle. Should this occur, the fine screen will be extremely difficult to
remove. For easier and safer fine screen removal and installation, the use of an
Orival Screen Extraction tool is highly recommended.
3. To reinstall the fine screen, first ensure that the upper and lower O-rings are intact
and fully seated in their appropriate grooves.
NOTE
Fine screens for filters with flanges up to 8’’ have a screen with two grooves in
the end with the handle and upper bearing. The lower groove is used. No O-ring
is installed in the upper groove.
The only exceptions are the 3’’ filters with
extended screens (with a top section and bottom section only), Models
OR-03 -BE, OR-03-IE and OR-03-PE. For these three models only, the O-ring is
installed in the upper Groove with no O-ring in the lower groove. All screens have
an O-ring in the inside groove at the bottom of the filter.