135
DIV
AL 600
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
MAINTENANCE AND FUNCTIONAL CHECKS
|
REV. A
EN
Step Action
41
Remove the cover (550) from the body (501).
42
Remove the diaphragm assembly: diaphragm (547), diaphragm protection disc (502), washer (519), diaphragm
support (518), compression bushing (520), locking screw (521).
43
Undo and remove the locking screw (521).
NOTICE!
During this phase, keep the diaphragm support (518) still.
44
Unscrew and remove the compression bushing (520).
45
Remove the washer (519).
46
Remove the diaphragm protection disc (502).
47
Replace the diaphragm (547).
48
Fit the diaphragm protection disc (502).
49
Position washer (519).
50
Set compression bushing (520).
51
Insert and secure the clamping screw (521) in the diaphragm holder, according to the tightening torques:
• “Tab. 9.59”
52
Place diaphragm assembly.
53
Insert cover (550) into body (501).
54
Insert and fix the screws (510) together with the nuts (511) according to the tightening torques:
• “Tab. 9.59”
NOTICE!
Screw in as shown in the diagram at “9.4.3.2 - Cross diagram for tightening screws”
.
55
Insert spring guide (540).
56
Insert spring holder (541).
57
Insert the maximum spring (542).
58
Insert and fasten adjustment ring nut (545)
59
Insert and secure the cap (546) together with the O-ring (549).
60
ATTENTION!
After maintenance, insert the LA slam-shut valve by fastening the screws (48) of the regulator
(9.4.3), according to the tightening torques
•
NOTICE!
Screw in as shown in the diagram at “9.4.3.2 - Cross diagram for tightening screws”
.
Tab. 9.65
WARNING!
Ensure that all parts have been fitted correctly.
Summary of Contents for Dival 600
Page 156: ...TM0023ENG...
