Maintenance
HON 512 with HON 650 pilot user manual
81
Figure
Step
Description
7
Remove the relief housing with the help of
the insertion aids. For this purpose, insert
the special top piece (as per the list of
special tools) into the stud (1) holes.
8
Turn the relief housing. Unscrew the screw
(1) on the valve disc (2) and remove the
valve disc.
9
Check the valve disc for damage and
replace it with a new one if necessary.
Replace the O-ring (1) with a new, greased
O-ring. Screw the valve disc back onto the
relief housing.
10
Insert the relief housing back into the
outlet body. Tighten the socket cap screws
(1), including retaining rings (2), in a
criss-cross sequence. Refer to the addi-
tional tightening torque information at the
beginning of this topic.
11
Screw the studs (1) back into the relief
housing.
Summary of Contents for HON 512
Page 185: ...Appendix HON 512 with HON 650 pilot user manual 185 X Fail to open version Y Amplifying valve ...
Page 205: ...Appendix HON 512 with HON 650 pilot user manual 205 ...
Page 206: ...Appendix HON 512 with HON 650 pilot user manual 206 ...
Page 207: ...Appendix HON 512 with HON 650 pilot user manual 207 ...
