Dungs FRM 100025 HD, Instruction Manual, Page: 141 / 174

32 …64
Edition 10.15 • No
. 270 442
33 … 64
14.2 Maintenance instructions of the regulator
14.2.1 Preparation
1
Loosen the screws G (M10) using an open-ended
wrench SW 17 .
2
Loosen the loops using an open-ended wrench
SW 17 .
2
14.2.2 Replacement of the working diaphragm
4. Unscrew the sealing cap C from the spring dome
using a jointed hook wrench 90-155 .
5. Remove the spring washer D incl. ball and the
setpoint spring E .
1. Loosen the pulse imline and the vent line and
remove them.
2. Remove the protective cap A .
3. Completely release the setpoint spring at the
adjusting screw B using an open-ended wrench
SW 24 .
(–)
1
G
C
E
D
A