Honeywell HON 673 - Page 55

Maintenance
HON 380 gas pressure regulator with HON 673/674 controller 55
Figure Step Description
13 Remove the circlip (1).
14 Take out the following parts:
 Nozzle assembly (1)
 O-rings (2)
Replace the two O-rings (2) with new,
greased O-rings.
15 Turn the nozzle assembly (1) and re-
lease the locking ring (2) to remove
the plain bearing (3).
Check the plain bearing for damage.
Replace it if necessary.
16 Take the valve spindle including at-
tached parts out of the intermediate
piece.
17
Unscrew the nut (1) and take out the
following parts:
 Pressure disc (2)
 Compensating diaphragm (3)
Check the compensating diaphragm
for damage. Replace it if necessary.