Honeywell HON 673 - Page 59

Maintenance
HON 380 gas pressure regulator with HON 673/674 controller 59
Figure Step Description
10 Unscrew the nut (1) and take out the
following parts:
 Pressure piece (2)
 O-ring (3)
 Valve plate (4)
 Valve cone (5)
 O-ring (6)
Replace the O-rings with new,
greased O-rings.
11 Release the circlip (1) on the marked
recess.
12 Remove the circlip (1).
13 Take out the following parts:
 Nozzle assembly (1)
 O-rings (2)
Replace the two O-rings (2) with new,
greased O-rings.
14
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.