Samson 3372 - Page 51

EB 8313-3 EN 9-9
Service and conversion work
12. Fasten the top and bottom diaphragm
cases (A16, A2) together using the nuts
(A24) and bolts (A22). Place on the
screw-on cap (A21). Observe tightening
torques.
Version with direction of action "actuator
stem retracts"
1. Lift off the top diaphragm case (A16).
2. Pull the actuator stem (A3) together with
the diaphragm plate (A14), diaphragm
(A18) and diaphragm plate (A13) out of
the bottom diaphragm case (A2).
3. Use a suitable tool to remove the radial
shaft seal (A2.2) 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.9-3).
A2.2 Radial shaft seal
A2.3 Wiper ring
A2.4 Dry bearing
A3 Actuator stem
A2.2
A2.4
A2.3
A3
Fig.9-3: Actuator stem seal (120cm² actuator)