Honeywell HON 512 User And Maintenance Manual page 120

HON 512 with HON 650 pilot user manual
Figure Step Description
28 To align the cross hole of the lower con-
necting piece correctly with the valve
insert:
Use the upper connecting piece to turn the
diaphragm by hand clockwise until it will
not rotate any further. Use a marker or pen
to mark the position on the body and on
the convoluted diaphragm.
29 Use the upper connecting piece to turn the
diaphragm by hand counterclockwise until
it will not rotate any further. Use a marker
or pen to mark the position on the body.
30 Use the upper connecting piece to turn the
diaphragm by hand so that the marking on
the diaphragm is right between the two
markings on the body.
31 Place the valve body on the spring housing.
32 Replace the O-ring (1) with a new, greased
O-ring.
Maintenance
120