331
REV
AL 182
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
MAINTENANCE AND FUNCTIONAL CHECKS
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REV. 00
EN
Step Action
1
Unscrew and remove the cap (18).
2
Remove the O-ring (16) from the cover (18) 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.
3
Completely release the spring (11) by adjusting the ring nut (13).
4
Completely release the minimum pressure spring (17) by adjusting the ring nut (15).
NOTICE!
The minimum spring may not be installed.
5
Remove the ring nut (13), the spring (11) and the spring support (17).
6
Remove the I/DWR ring (39) from the pressure switch sleeve and replace it, taking care to lubricate it with
synthetic grease.
NOTICE!
Before inserting the replacement I/DWR ring, clean the retaining slots with a cleaning solution.
7
Undo and remove the screws (42).
8
Remove the upper cover (40).
9
Take out the diaphragm unit (43, 44, 45, 46, 47).
10
Unscrew the nut (47).
11
Remove the diaphragm protection disc (44).
12
Remove and replace the diaphragm (43), taking care to lubricate the lanyard with synthetic grease.
NOTICE!
Before inserting the replacement diaphragm, clean the retaining slots with a cleaning solution.
13
Fit the diaphragm protection disc (44).
14
Tighten and secure the nut (47), according to torque:
• Mod. 102M/102MH: tab. 9.135
15
Remove the ring (49).
16
Undo and remove the screws (48).
17
Remove the lower cover (41).
18
Remove the O-ring (50) from the nut (49) 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.
19
Remove the bush (35).
20
Remove the O-ring (27) from the bush (35) 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.
Summary of Contents for REVAL 182
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