Dungs FRM 100025 HD, Instruction Manual, Page: 147 / 174

38 …64
Edition 10.15 • No
. 270 442
39 … 64
9 10
W
V
11
12
T
X
X
S
X
If necessary, replace the valve seat V:
screw out the valve seat V from the housing X by
using a socket wrench.
Tighten the new valve seat V with the new O-ring W
(maintenance set 4) in the housing X .
Place the new O-ring T (maintenance kit 3 or 5) in
the turned groove in the housing X .
Insert the control plate S with the sleeve U (mainte -
nance set 3) in the housing X again.