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REPAIR AND MAINTENANCE PROCEDURES
INSTALLING THE NEW DIAPHRAGMS ASSEMBLING PROCEDURE
2.
FIRST DIAPHRAGM ALIGNMENT
Using the soft head hammer, againg align the diaphragm bead
until the bead touches the housing without deformation.
The diaphragm bead
touches the housing
without deformation.
3.
DIAPHRAGM COVER INSTALLATION
Place the diaphragm cover and approximate it using the bolts
(follow the TIGHTENING SEQUENCE).
Once approximated, tighten @132 lbf·in (15 N·m).
CAUTION!: CF50 pump body is
fitted with two nipples that fit
with two holes in the diaphragm
cover to ensure that the cover is
placed in its correct possition.
Balcrank Corporation • Weaverville, N.C. 28787 • Phone (800) 747-5300 • Fax (800) 763-0840
SOFT HEAD
TIGHTENING SEQUENCE
9
5
7
3
2
4
8
6
10
4.
CENTRAL ROD RELEASE FOR SECOND DIAPHRAGM
ALIGNMENT
Using an air gun fed with 1bar (15psi) maximum air pressure, inject air
in the air chamber of the diaphragm cover trough the hole nº1
meanwhile closing the holes nº2 and nº3 . Compresed air will push out
the central rod allowing the diaphagm installation without deformation.
When we hole nº1 is feed with compressed air while closing nº2
and nº3 air enters in the chamber, displacing the central rod and
allowing to install the diaphragm.
5.
SECOND DIAPHRAGM ALIGNMENT
Install the remaining diaphragm and again, using the soft head
hammer, align the diaphragm bead until the bead touches the
housing without deformation.
SOFT HEAD
6.
SECOND DIAPHRAGM COVER INSTALLATION
Follow same procedure as for the first diaphramg cover described
inpoint nº3.
1
1
2
3
Rev A 07/2017 SB 1147
EN
11
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