Honeywell HON 5020 User And Maintenance Manual page 67

HON 5020 gas pressure regulator with HON 630 pilot
Figure Step Description
14 Remove the diaphragm plate (1) and the
diaphragm (2).
15 Screw the assembly aid into the valve
insert.
16 Pull out the valve insert.
17 Replace the valve insert with a new one.
Insert a new, greased O-ring (1).
18 Align the valve body as shown.
Insert the assembly aid, with the milled
surface facing upward towards the piston
opening, into the valve body.
Maintenance
67