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Servicing
Î Observe the specified tightening torques
(u AB 0100).
NOTICE
!
Risk of actuator damage due to the use of
unsuitable tools.
Î Only use tools approved by SAMSON
(u AB 0100).
NOTICE
!
Risk of actuator damage due to the use of
unsuitable lubricants.
Î Only use lubricants approved by
SAMSON (u AB 0100).
Note
− 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.
− Only use original spare parts by
SAMSON, which comply with the original
specifications.
9.1 Periodic testing
Depending on the operating conditions,
check the actuator at certain intervals to pre-
vent possible failure before it can occur.
Plant operators are responsible for drawing
up an inspection and test plan.
9-2
Tip
Our after‑sales service can support you in
drawing up an inspection and test plan for
your plant.
9.2 Preparing the valve for
service work
1. Lay out the necessary material and tools
to have them ready for the intended
work.
2. Put the actuator out of operation (see the
'Decommissioning' section).
3. Remove the actuator from the valve (see
the 'Removal' section).
The following service work can be per-
formed after preparation is completed:
− Replace parts subject to wear (see sec-
tion 9.4.1)
9.3 Mounting the actuator after
service work
1. Leak-test the actuator (see section 9.5)
2. Mount the actuator (see the 'Installation'
section).
9.4 Service work
See Fig. 9-1
EB 8314-1 EN
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