Honeywell HON 673 - Page 49

Maintenance
HON 380 gas pressure regulator with HON 673/674 controller 49
Figure Step Description
7 Take out the following parts:
 Diaphragm plate (1)
 Rolling diaphragm (2)
Check the rolling diaphragm for dam-
age. Replace it if necessary. Grease
the inner diaphragm bead.
8 Unscrew the nut (1) and take out the
check piece (2):
9
Unscrew the screws (1). Take note of
the gaskets (2) while doing so.
10 Remove the diaphragm housing pot.
11 Turn the component 180°.