147
ASX 176
Use, maintenance and warning instructions
HIGH PRESSURE REGULATOR
|
MAINTENANCE AND FUNCTIONAL CHECKS
|
REV. 00
EN
Step Action
21
Check the hole in the transfer (19) on the diaphragm holder (10).
WARNING!
Make sure the hole is not obstructed.
22
Remove and replace the O-ring (48) from the upstream mouthpiece (1), lubricating it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
23
Remove and replace the I/DWR ring (52) from the upstream mouthpiece (1).
NOTICE!
Before fitting the replacement I/DWR ring, clean the retaining slots with a cleaning solution.
24
Remove and replace the O-ring (48) from the downstream cover (3), lubricating it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
25
Remove and replace the I/DWR ring (52) from the downstream cover (3).
NOTICE!
Before fitting the replacement I/DWR ring, clean the retaining slots with a cleaning solution.
26
Turn the downstream cover assembly (3) and downstream mouthpiece (4) upside down, placing the down-
stream cover on an impact-resistant surface
27
Undo the screws (32) together with the washers (61).
28
Remove the downstream mouthpiece (4).
29
Remove the reinforced gasket assembly (4, 5, 6, 7, 8, 33, 43) together with the LDB/176 grid (70) from the
downstream mouthpiece (4).
30
Unscrew and remove the screw (33) together with the locking ring (6) from the reinforced gasket assembly.
31
Remove gasket ring holder (8), gasket ring (7) and O-ring (43) from gasket holder (5).
32
Remove grid LDB/176 (70).
33
Replace the O-ring (43) and lubricate it with synthetic grease.
NOTICE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
34
Remove and replace the gasket ring (7) from the gasket ring holder (8).
35
Position grid LDB/176 (70).
36
Position the gasket ring support (8) and gasket ring (7) in the reinforced gasket assembly.
37
Insert and fasten the screw (33) together with the locking ring (6) according to the tightening torque:
• DN 1”: tab. 9.69.
NOTICE!
Tighten the screws according to the cross diagram in paragraph 9.4.2.2.
Summary of Contents for ASX 176
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