Periodic Testing; Preparation For Servicing Or Conversion Work - Samson 3371 Mounting And Operating Instructions

Servicing and conversion
ple, to the configuration ID or the symbol af-
ter reversal of the direction of action.
Î Immediately renew any nameplates or
labels with incorrect or outdated infor-
mation.
Î Add any new values to the nameplate. If
necessary, contact SAMSON to obtain a
new nameplate.
NOTICE
!
Risk of actuator damage due to excessively
high or low tightening torques.
Observe the specified torques when tighten-
ing actuator components. Excessive tighten-
ing torques lead to parts wearing out more
quickly. Parts that are not tightened far
enough may loosen.
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 valve damage due to the use of
unsuitable lubricants.
Î Only use lubricants approved by
SAMSON (u AB 0100).
9-2
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.
Tip
Our after-sales service can support you in
drawing up an inspection and test plan for
your plant.
9.2 Preparation for servicing
or conversion 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).
EB 8317 EN