PIETRO FIORENTINI HBC 975, Руководство пользователя

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127
HBC 975
Use, maintenance and warning manual
SLAM-SHUT VALVE | MAINTENANCE AND FUNCTIONAL CHECKS | REV. 00
EN
Step Action
1 Unscrew and remove the cap (18).
2
Remove the O-ring (16) from the lid (18) and replace it, taking care to lubricate it with synthetic grease.
NOTE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
3 Completely release the spring (11) by turning the ring nut (13).
4
Completely release the minimum pressure spring (17) by adjusting the ring nut (15).
NOTE!
The minimum spring may not be present.
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.
NOTE!
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 lid (40).
9
Remove and replace the diaphragm (43), taking care to lubricate the lanyard with synthetic grease.
NOTE!
Before inserting the replacement diaphragm, clean the retaining slots with a cleaning solution.
10
Undo and remove the screws (46).
11 Remove the diaphragm protection disc (44).
12 Remove the ring (49).
13
Remove the O-ring (50) from the ring (49) and replace it.
NOTE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
14
Undo and remove the screws (48).
15
Remove the lower lid (41).
16 Remove the bush (35).
17
Remove the O-ring (27) from the bush (35) and replace it, taking care to lubricate it with synthetic grease.
NOTE!
Before inserting the replacement O-ring, clean the retaining slots with a cleaning solution.
18
Remove the U-shaped ring (4) from the bush (35) and replace it, taking care to lubricate it with synthetic grease.
NOTE!
Before inserting the replacement U-ring, clean the retaining slots with a cleaning solution.