Honeywell HON 512 User And Maintenance Manual page 88

HON 512 with HON 650 pilot user manual
Figure Step Description
12 Slide the diaphragm plate (1) downwards
and remove the sleeve (2). Use a rubber
mallet if necessary.
13 Check the sleeve's sealing edge (1) for
notches/damage. If necessary, replace the
sleeve with a new one.
See step 15 for reference.
14 Replace the O-ring (2) in the diaphragm
plate with a new, greased O-ring and clean
the diaphragm unit during the process.
Remove the old, used diaphragm (1).
15 Slide the sleeve (2) back into the dia-
phragm plate (1).
Make sure that the sealing edge is facing
upwards. See step 15 for reference.
16 Take a new diaphragm that has not yet
been unfolded and grease it.
Maintenance
88