2. Maintenance
2-5
2.3.2
Change Diaphragm
Speed Regulator (Bellophragm type)
＜
Procedure
＞
①
Remove the speed regulator from the bracket and
disassemble it.
②
Replace diaphragms with new ones.
③
Check A to D shown in figure for any burrs.
④
Diaphragm is delivered in different state from the
state in which it should be installed. So install
diaphragm which should be turned inside out, as
shown in the following Fig.
⑤
Internal face of body and cap and also both internal face and external face of diaphragm should
be coated with molybdenum oxide spray.
How to spray molybdenum oxide paste
：
The areas in oblique line should be sprayed with this
paste.
B
Shaft
Piston
Seal washer
Locking nut
Washer
Diaphragm
[Delivered state]
[State to be installed]
PC06037
A
D
Diaphragm
C
Diaphragm should be rolled up
and back face and piston
should be sprayed.
Then it should be
returned and be sprayed.
Inside of body should
be sprayed.
※
Jointed portion should
be sprayed enough.
Inside face of body
should be sprayed
till middle line.
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Summary of Contents for PDS185S-6C1
Page 1: ...D i s c o u n t E q u i p m e n t c o m...
Page 19: ...1 Specification 1 15 1 7 Piping Diagram PC08091E D i s c o u n t E q u i p m e n t c o m...
Page 76: ...5 4 PDS185S 6C1 VE PUMP Type PC08047E D i s c o u n t E q u i p m e n t c o m...
Page 77: ...5 5 PDS185S 6C1R IN LINE PUMP Type PC08048E D i s c o u n t E q u i p m e n t c o m...
Page 78: ...5 6 PDS185S 6C1R IN LINE PUMP Type PC08090E D i s c o u n t E q u i p m e n t c o m...
