207
REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
MAINTENANCE AND FUNCTIONAL CHECKS
|
REV. 00
EN
Step Action
19
Remove the O-ring (44) from the rod guide (17) and replace it, taking care to lubricate it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
20
Unscrew and remove the position screws (57) together with the indicator glass (16) and pawl (163).
21
Remove and replace the O-ring (44) from the pawl (163), lubricating it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
22
Place the rod guide (17) in the eyebolt flange (14).
23
Assemble the eyebolt flange (14) with the cover (3).
24
Insert and fasten the screws of the upper part (27) in the upper cover (3) according to the tightening torque:
• DN 10”: tab. 9.98
NOTICE!
Tighten the screws according to the cross diagram in paragraph 9.4.2.2.
25
Insert the indicator rod (18) into the rod guide (17).
26
Unscrew and remove the balancing stem guide (11).
NOTICE!
In this step, keep the diaphragm unit still, fitting the compass wrench into the holes in the upper
diaphragm support (13).
27
Remove the balancing piston (15) from the balancing stem guide (11).
28
Remove and replace the O-rings (36, 43) from the balancing stem guide (11), lubricating them with synthetic
grease.
NOTICE!
Before inserting the replacement O-rings, clean the retaining slots with a cleaning solution.
29
Position the balancing piston (15) in the balancing stem guide (11).
30
Take out the diaphragm unit (10, 12, 13, 21, 29, 45, 50, 62)
31
Undo and remove the screws (29) from the lower diaphragm support (10).
32
Remove the diaphragm support (10) and the lower diaphragm protection disc (12).
33
Remove and replace the diaphragm (50) together with the oil seal (62).
34
Remove the upper diaphragm support (13) from the lower diaphragm protection disc (12).
35
Remove and replace the O-ring (45) from the upper diaphragm support (13), lubricating it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
Summary of Contents for REVAL 182
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