EB 8097 EN 13
Maintenance
Contact your nearest SAMSON subsidi-
ary or the SAMSON After-sales Service
department for information on suitable
lubricants.
10. Place the stem seal initially in the oppo-
site direction with the lip facing toward
the thread end over the plug stem to
stretch the lip of the stem seal slightly.
Carefully pull the stem seal off again.
11. Slide a new centering ring (1.1) with
gasket (1.2) over the plug stem (not nec-
essary for the bar stock body version).
12. Carefully slide the stem seal, centering it,
over the thread end of the plug stem. The
stem seal must t tightly, but slide easily
over the plug stem.
13. Insert the plug stem with stem seal and
centering ring (1.1) into the valve bon-
net.
14. Push the wiper (5.3) over the plug stem
into the valve bonnet.
15. Carefully place the valve bonnet onto the
valve body.
16. Apply a suitable lubricant to the clamps
(5.4) and the anges of the valve bonnet
and valve body.
17. Place the clamp in position and tighten
the clamp screw.
18. Hit the clamp lightly with a plastic ham-
mer and tighten the clamp screw again.
Repeat this procedure several times until
all parts t properly to achieve a leak-
tight body.
If the weight of the bonnet in the version
with steam line connection is too light to
put the clamp back on, slightly compress
the packing springs over the bonnet be-
forehand.
19. Screw the lock nut (6.2) and stem con-
nector nut (6.1) onto the plug stem (6).
20. Mount the actuator and adjust the upper
and lower bench range values as de-
scribed in section3.1.
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