149
ASX 176
Use, maintenance and warning instructions
HIGH PRESSURE REGULATOR
|
MAINTENANCE AND FUNCTIONAL CHECKS
|
REV. 00
EN
Step Action
38
Remove the O-ring (41) 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.
39
Place the reinforced gasket assembly (4, 5, 6, 7, 8, 33, 43) in the downstream cover (3).
40
Place the downstream mouthpiece (4) in the downstream cover (3).
41
Insert and fasten the screws (32) together with the washers (61) 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.
42
Turn the downstream cover assembly (3) and downstream mouthpiece (4) upside down.
43
Insert the diaphragm plug assembly (9, 10, 11, 50) into the downstream cover (3).
NOTICE!
Take care not to damage the O-ring (48), the I/DWR (52) and the plug profile (9).
44
Fit the spring (54).
45
Place the upstream mouthpiece (1) in the plug (9).
NOTICE!
Take care not to damage the O-ring (48), the I/DWR (52).
46
Insert and fasten the screws (34.1) in the two threaded holes of the downstream cover (3) to compress the
spring (54) and hold the upstream mouthpiece (1) parallel to the downstream cover (3), according to the tight-
ening torque:
• DN 1”: tab. 9.69.
NOTICE!
Take care not to tilt the upstream mouthpiece (1) when fastening the screws (34.1).
47
Bring the upstream mouthpiece (1) with the downstream cover (3) into position.
48
Insert and secure the remaining screws (34) and screw (37) together with the washers (60) with the nut (35) in
accordance with the tightening torque:
• DN 1”: tab. 9.69.
NOTICE!
Tighten the screws according to the cross diagram in paragraph 9.4.2.2.
49
Rotate the regulator, resting the downstream mouthpiece (4) on a shockproof surface
50
Remove and replace the O-rings (42, 44, 47) from the indicator rod guide (12), lubricating them with synthetic
grease.
NOTICE!
Before inserting the replacement O-rings, clean the retaining slots with a cleaning solution.
51
Remove and replace the O-ring (42) from the stroke indicator cap (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 ASX 176
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