Replacing The Diaphragm And Stem Seal; Customer Inquiries - Samson 3277 Mounting And Operating Instructions

3 Replacing the diaphragm and
stem seal
3.1 Diaphragm
(Fig. 3)
1. Remove the diaphragm plate (7) to-
gether with diaphragm (8) and actuator
stem (2) from the diaphragm case as de-
scribed in section 2.1.1.
2. Remove the hose clamp and pull it to-
gether with the diaphragm (8) off the di-
aphragm plate (7) (not necessary with
Type 3277-5 as the diaphragm is held
in place by the metal plate (7.1)).
3. Stretch the new diaphragm onto the dia-
phragm plate. Fit the hose clamp evenly
into the groove intended for it and
tighten.
4. Reassemble actuator as described in
section 2.1.1.
3.2 Stem seal
1. Remove the diaphragm plate (7) to-
gether with the actuator stem (2) from
the diaphragm case as described in
section 2.1.1.
2. Coat the new stem seal (12) with lubri-
cant/sealant (order no. 8152-0043)
and insert it.
3. If necessary, replace the dry bearing
(12.1) and wiper (13) with new ones as
well.
4. Reassemble the actuator as described in
section 2.1.1.

Replacing the diaphragm and stem seal

4

Customer inquiries

Please specify the following details on mak-
ing inquires:
4
Type and model number
4
Effective diaphragm area
4
Bench range (spring range) in bar
4
Actuator version and its operating direc-
tion
Dimensions and weights
Refer to the Data Sheet T 8310-1 EN dimen-
sions and weights of the different actuator
versions.
2
Fig. 7 · Actuator stem seal
12
12.1
13
11
EB 8311 EN