Samson 3372 Mounting and operating instructions - Plate Assembly
30
EB 8313-3 EN
Maintenance of Type 3372 (120 cm²)
6.3 Dismantling the diaphragm
plate assembly
The diaphragm plate assembly only needs to
be dismantled if the diaphragm is damaged
and needs replacing as a result.
Î
Clamptheactuatorstem(7,Fig. 12)ina
suitable appliance.
Remove the components in the sequence de-
scribed:
6.3.1 Version with fail-safe
action „actuator stem
extends“ (FA)
Î
Unscrew the self-sealing collar nut (15,
Fig. 12).
Î
Liftofflargediaphragmplate(5),dia-
phragm (4) and small diaphragm plate.
6.3.2 Version with fail-safe
action „actuator stem
retracts“ (FE)
Î
Unscrew the self-sealing collar nut (15,
Fig. 12).
Î
Liftoffsmalldiaphragmplate(4),dia-
phragm (5) and large diaphragm plate.
6.4 Assembly based on the di-
rection of action
Before assembling, check each part, espe-
ciallythediaphragm(4,Fig. 12),fordam-
age. Damaged parts must be replaced with
new ones.
Assemble in the reverse order as described
for dismantling. The parts are to be assem-
bled as shown in the associated drawing.
6.4.1 Version with fail-safe
action „actuator stem
extends“ (FA)
Î
Place the small diaphragm plate (5.1,
Fig. 12),diaphragm(4)andthedia-
phragm plate (5) on the actuator stem (7)
in the given sequence.
Î
Thread the (self-sealing) collar nut on the
actuatorstemandtightenwith30 Nm.
6.4.2 Version with fail-safe
action „actuator stem
retracts“ (FE)
Î
Placethediaphragmplate(5,Fig. 12),
diaphragm (4) and small diaphragm
plate (5.1) on the actuator stem (7) in the
given sequence.
Î
Thread the (self-sealing) collar nut on the
actuatorstemandtightenwith30 Nm.
6.5 Replacing seals and plain
bearings
Theradialshaftseal(40,Fig. 12)andthe
wiper ring (41) and the plain bearing (42),
if necessary, must be renewed due to wear
or during repair work.