Honeywell HON 673 - Page 54

Maintenance
HON 380 gas pressure regulator with HON 673/674 controller 54
Figure Step Description
8 Unscrew the nut (1) and take out the
check piece (2):
9
Unscrew the screws (1) and remove
the diaphragm housing pot (3). Take
note of the gaskets (2) while doing so.
10 Turn the component 180°.
11
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.
12 Release the circlip (1) on the marked
recess.