Samson 3372 - Page 53

EB 8313-3 EN 9-11
Service and conversion work
3. Use a suitable tool to remove the radial
shaft seal (A40) from the bottom case
(A2).
4. Check the dry bearing (A2.4) and wiper
(A2.3) and renew them, if necessary.
5. Apply a suitable lubricant to the seal lip
of the new radial shaft seal.
6. Use a suitable tool to mount the radial
shaft seal. Observe the correct alignment
of the radial shaft seal (see Fig.9-4).
7. Fill the cavity of the radial shaft seal, in
which the spring is seated, with lubri-
cant.
8. Check whether the springs (A10) rest
correctly in the bottom diaphragm case
(A2).
9. Apply a suitable lubricant to the actuator
stem (A7).
10. Insert the actuator stem (A7) together
with the diaphragm plate (A5) and dia-
phragm (A4) into the bottom diaphragm
case (A2). Make sure that the radial
shaft seal (A40) is not damaged.
11. Place on the top diaphragm case (A1).
12. Fasten the top and bottom diaphragm
cases (A1, A2) together using the nuts
(A21) and bolts (A20). Observe tighten-
ing torques.
A7 Actuator stem
A40 Radial shaft seal
A41 Wiper ring
A42 Dry bearing
A41
A42
A40
A7
Fig.9-4: Actuator stem seal (350cm² actuator)