125
DIV
AL 600
Use, maintenance and warning instructions
MEDIUM PRESSURE REGULATOR
|
MAINTENANCE AND FUNCTIONAL CHECKS
|
REV. A
EN
Step Action
1
1
Unscrew and remove the adjusting screw (609) together with the locking nut (607).
2
2
Remove and replace the O-rings (353, 608), taking care to lubricate them with synthetic grease.
NOTICE!
Before inserting the replacement O-rings, clean the retaining slots with a cleaning solution.
3
3
Remove the spring guide disc (610) together with the washer (352).
4
4
Remove the regulation spring (328).
5
5
Unscrew and remove the screws (103) securing the control head (A) to the body (C).
6
6
Remove the control head (A) together with the balancing block (B).
7
7
Separate the balancing block (B) from the control head (A).
NOTICE!
Follow the indication of the arrow.
8
8
Unscrew and remove the nuts (361).
9
9
Undo and remove the screws (360).
10
10
Remove the upper cover (340) from the lower cover (310).
11
11
Unscrew and remove the locking nut (332).
12
12
Pull out the spring (331) of the relief valve.
13
13
Pull the diaphragm support assembly (321, 322, 323, 324) off the rod (302).
14
14
Remove the O-ring (303) 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.
15
15
Unscrew and remove the locking nut (324).
NOTICE!
During this phase, keep the diaphragm support (323) still.
16
16
Remove the diaphragm protection disc (322).
17
17
Remove and replace the main diaphragm (321).
18
18
Fit the diaphragm protection disc (322).
19
19
Insert and secure the locking nut (324), according to the tightening torques:
• “Tab. 9.58”
NOTICE!
During this phase, keep the diaphragm support (323) still.
20
20
Position the diaphragm support assembly (321, 322, 323, 324, 390) in the rod (302).
21
21
Insert the spring (331) of the relief valve.
22
22
Insert and fix the nut (332) according to the following tightening torques:
• “Tab. 9.58”
23
23
Place the upper cover (340) on the lower cover (310).
NOTICE!
Follow the orientation of the anti-pumping valve when positioning the cover.
Summary of Contents for Dival 600
Page 156: ...TM0023ENG...
