Dungs FRM 100025 HD, Instruction Manual, Page: 158 / 174

50 …64
Edition 10.15 • No
. 270 442
14.3.4 Mounting of the ASE on the housing
5
Remove the diaphragm ring D .
D
6
Remove the O-ring C . Clean the push rod L.
C
L
7
Insert the new O-ring C (maintenance set 7) in the turned groove of the diaphragm shell K .
8
Reinsert the diaphragm ring D with the turned groove upwards.
9
Check the state of the working diaphragm E .
If necessary, reassemble a new working diaphragm E (maintenance set 2).
10
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 .
11
Place the setpoint spring F for lower shut down pressure on the push rod B .
12
Re fit the ASE cover Q .
13
Tighten the 6 Allen screws H (M5), in order to lock the ASE Q .
1
Place the new O-ring N (maintenance kit 4 or 5) in the turned groove in the housing M .
2
Tighten the threads of the connecting piece O in the housing M using a hook wrench 60-90 .
3
Fix the connecting piece O of the ASE Q using 4 hexagonal socket grub screws P (M5x8).