Honeywell HON 512 User And Maintenance Manual page 98

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.
18 Pull the diaphragm (1) all the way down
over the diaphragm plate. Then fold the
diaphragm body back to half its height.
19 Place the diaphragm unit back in the inlet
body. Make sure that the mounting plate
(1) and the screws (2) are facing upwards.
20 Take the outlet body. Replace the O-ring (1)
with a new, lubricated O-ring. Check the
guide ring (2) for damage and replace it
with a new one if necessary.
21 Use grease for valve sleeves (as specified in
the lubricant table) to fill the chamber (1)
via the guide ring (2).
Maintenance
98