Honeywell HON 512, User And Maintenance Manual

Page: 76 / 208

Maintenance
HON 512 with HON 650 pilot user manual 76
Figure Step Description
16 Slide the sleeve (2) back into the dia-
phragm plate (1).
Make sure that the sealing edge is facing
upwards. See step 9 for reference.
17 Take a new diaphragm that has not yet
been unfolded and grease it.
18 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.
19 Pull the diaphragm all the way down over
the diaphragm plate. Fold the diaphragm
body back to half its height.
20 Place the diaphragm unit back in the inlet
body. Make sure that the mounting plate
(1) and the screws (2) are facing upwards.