PIETRO FIORENTINI ASX 176, Translation Of Original Instructions

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153
ASX 176
Use, maintenance and warning instructions
HIGH PRESSURE REGULATOR | MAINTENANCE AND FUNCTIONAL CHECKS | REV. 00
EN
Step Action
WARNING!
If fitted, remove the spacer.
1 Place the regulator with the downstream mouthpiece (4) of the main regulator on a shockproof surface.
2
Unscrew and remove the stroke indicator cap (13) together with the indicator slide (14) from the indicator rod
guide (12).
3 Unscrew and remove the indicator rod guide (12) from the downstream cover (3).
4 Remove indicator rod assembly (15, 16) from downstream cover (3) and diaphragm holder (11).
5 Rotate the regulator, resting the downstream mouthpiece (4) on a shockproof surface.
6 Unscrew and remove the nut (35), together with the screws (34, 37) and washers (60).
7
Undo and remove the screws (34.1) from the downstream cover (3).
NOTICE!
The upstream mouthpiece (1) and cover (2) assembly must remain parallel to the downstream
cover (3).
8
Separate the upstream cover (2) from the downstream cover (3).
NOTICE!
Place the cover (2) on the side of the mouthpiece (1).
9 Remove the spring (54).
10 Remove the diaphragm plug assembly (9, 10, 11, 50) from the downstream cover (3).
11
Position the plug (9) from the downstream side on a shockproof surface.
NOTICE!
Take care not to damage the plug (9).
12
Undo and remove the screws (36).
NOTICE!
During this phase, prop up the diaphragm holder (11).
13 Remove the diaphragm holder (10) from the plug (9).
14 Remove and replace the diaphragm (50).
15
Remove the O-ring (45) 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.
16 Pull the plug (9) out of the diaphragm holder (11).
17
Remove the O-ring (46) 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.
18 Place the plug (9) in the diaphragm holder (11).
19 Position the diaphragm (50).
20 Position the diaphragm holder (10).