Dungs FRM 100025 HD, Instruction Manual, Page: 156 / 174

48 …64
Edition 10.15 • No
. 270 442
8
Insert the new O-ring C (maintenance set 7) in the turned groove of the diaphragm shell A .
9
Reinsert the diaphragm ring D with the turned groove upwards.
10
Check the state of the working diaphragm E .
If necessary, reassemble a new working diaphragm O (maintenance set 2).
11
Insert the working diaphragm E on the push rod B .
Place the external bead of the working diaphragm E in the turned groove of the diaphragm ring D .
12
Reinsert the working diaphragm G with chamfer upwards (HD version only).
13
Place the setpoint spring F for lower shut down pressure on the push rod L .
14
Place the I cover of the ASE Q back.
15
Tighten the 6 Allen screws H (M5), in order to lock the ASE Q .
7
Remove the O-ring C and clean the push rod L .
C
L