Samson 3251-E, Mounting And Operating Instructions

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9-20 EB 8052-E EN
Servicing and conversion
6. Unscrew castellated nut (92) and lift the
yoke (60) off the valve bonnet (2).
7. Unscrew the threaded bushing (8).
8. Pull plug stem (5.1) out of the valve bon-
net (2).
9. Pull the entire packing out of the packing
chamber using a suitable tool.
10. Clean the packing chamber thoroughly.
11. Remove spiral gasket (17) from the body
(1) and valve bonnet (2).
12. Valve versions without flow divider:
continue as described in step 13.
Valve versions with flow divider: re -
move the spiral gasket (126), clamping
element (63) and flow divider (62) from
the body (1).
13. Undo the seat ring (221) using a special
tool (
u
AB 0100) and remove it from the
body (1).
It may be necessary to first unscrew a
few studs (13) from the body (1) before
the tool can be positioned properly.
14. Remove seat (4) and spiral gasket (127)
from the body (1).
LLF 20 packing
1. Undo the body nuts (14) gradually in a
crisscross pattern.
2. Valve versions without anti-rotation fix -
ture: ensure that the stem connector nut
(9) is still fastened tight to the plug stem
(5.1).
Valve versions with anti-rotation fixture:
ensure that the clamps (301) are still fas-
tened tight to the plug stem (5.1).
3. Lift the valve bonnet (2) including yoke
(60), plug (5) and plug stem (5.1) up-
wards off the body (1) and set it aside.
4. Valve versions without anti-rotation fix -
ture: unscrew the stem connector nut (9)
and lock nut (10) from the plug stem
(5.1).
Valve versions with anti-rotation fixture:
undo the screws (303) and remove the
clamps (301) of the anti-rotation fixture.
Set aside clamps (301), screws (303),
washers (304) and stem (9).
5. Gradually unscrew the two guide bolts
(163.1) of the spring loading assemblies
(163) at the hex head in a crisscross pat-
tern.
6. Lift off the two spring loading assemblies
(163) and packing gland (162) vertically
over the studs (164) off the valve bonnet
(2).
7. Unscrew castellated nut (92) and lift the
yoke (60) off the valve bonnet (2).
8. Pull out the packing follower (8).
9. Pull plug stem (5.1) out of the valve bon-
net (2).
10. Pull the entire packing out of the packing
chamber using a suitable tool.
11. Clean the packing chamber thoroughly.
12. Remove spiral gasket (17) from the body
(1) and valve bonnet (2).
13. Valve versions without flow divider:
continue as described in step 14.
Valve versions with flow divider: re -
move the spiral gasket (126), clamping