Honeywell HON 512 User And Maintenance Manual page 89

HON 512 with HON 650 pilot user manual
Figure Step Description
17 Place the new diaphragm (1) and the
mounting plate (2) on the diaphragm plate
as shown in the figure to the left. Tighten
the screws (3) in a criss-cross sequence.
Refer to the additional tightening torque
information at the beginning of this topic.
18 Pull the diaphragm all the way down over
the diaphragm plate. Fold the diaphragm
body back to half its height.
19 Put the mounting ring (2) back in place and
tighten the screws (1), including retaining
rings, in a criss-cross sequence.
20 Place the diaphragm unit back in the inlet
body. Make sure that the mounting plate
(1) and the screws (2) are facing upwards.
21 Replace the O-ring (1) with a new one.
Maintenance
89