Richter PA/F Series, Installation And Operating Manual

Page: 12 / 39

Series PA/F, PA/S
Page 12
9510-010-en Revision 18
TM 9549 Edition 11/2018
9 Maintenance
♦ All repair work is to be performed by qualified per-
sonnel using the appropriate tools.
♦ For the arrangement, designation and item numbers
of all parts of the valve, see Section 10 .
♦ Spare parts are to be ordered with all the details in
acc. with the valve identification.
♦ Only original spare parts may be installed.
♦ To prevent leaks, a regular check of the connection
screws should be made in line with the operating re-
quirements.
For tightening torques, see
Section 1.2 .
Make sure that when working on the
sampling valve it is drained.
See also
Section 7.4 .
9.1 Disassembling PA/F and
removing the packing rings
♦ Undo clip 937 and unscrew bottle connection 226 .
♦ Undo groove nut 509 . Star grip 963 can remain
screwed in.
♦ Undo spring bonnet 513 .
♦ Pull pressure spring 952 from stem 855 .
♦ Loosen setscrew 904 in spring bush 514 .
♦ Undo spring bush 514 .
♦ Undo hex nut 920 with tooth lock washer 936 , and
remove seat 205 .
♦ Remove cover 106 and the stud screws 902 .
♦ Pull out bellows 206 with stem 855 downwards.