EB 8091-1 EN
31
Servicing
Risk of valve damage due to the use of un-
suitable tools.
Only use tools approved by SAMSON
(
u
AB 0100).
Risk of valve damage due to the use of un-
suitable lubricants.
Only use lubricants approved by SAMSON
(
u
AB 0100).
The control valve was checked by SAMSON
before it left the factory.
−
Certain test results (seat leakage and leak
test) certified by SAMSON lose their validi
-
ty when the valve body or actuator hous
-
ing is opened.
−
The product warranty becomes void if ser
-
vice or repair work not described in these
instructions is performed without prior
agreement by SAMSON's After-sales Ser
-
vice department.
−
Only use original spare parts by
SAMSON, which comply with the original
specifications.
7.1 Replacing the gasket
7.1.1 Standard version
1. Remove the actuator from the valve. See
associated actuator documentation.
2. Loosen the slotted nut (11) at the valve.
Remove the yoke (13) from the interme-
diate piece (4).
3. Unscrew the fillister head screw (6) on
the anti-rotation fixture (2.4). Remove the
anti-rotation fixture (2.4) from the inter-
mediate piece (4).
4. Unscrew the intermediate piece (4) from
the body (1). Remove the intermediate
piece (4) together with plug (2.1) from
the body (1).
5. Remove gasket (2.3). Carefully clean the
sealing faces in the body (1) and on the
intermediate piece (4).
6. Insert a new gasket (2.3) into the body.
7. Apply a suitable lubricant to the thread
of the intermediate piece.
8.
Place the intermediate piece (4) together
with the plug (2.1) onto the body. Use a
suitable tool to screw it into the body (1).
Observe tightening torques.
9.
Push the anti-rotation fixture (2.4) over
the intermediate piece (4) and lock it in
place with the fillister head screw (6).
10. Place the yoke (13) onto the intermediate
piece (4) and secure with slotted nut
(11). Observe tightening torques.
11. Mount actuator. See associated actuator
documentation.
7.1.2 Version with insulating
section
1. Remove the actuator from the valve. See
associated actuator documentation.
NOTICE
!
NOTICE
!
Note
Summary of Contents for 3510
Page 29: ...EB 8091 1 EN 29...
