Samson 430 Series, Mounting And Operating Instructions

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40 EB 7030 EN
Maintenance
8 Maintenance
8.1 Checking the air supply
The modules of the pneumatic controller are
maintenance-free. We recommend checking
the air supply depending on the operating
periods. To guarantee trouble-free operation
of the device, make sure that the supply air
is always clean.
Check the air filter and separator installed in
the upstream air reducing station regularly,
depending on the operating periods. If nec
-
essary, when the performance worsens con -
siderably, clean or replace the appropriate
filters.
Type 3435 and Type 3436 Transmitter
Modules
A grommet with filter is located in the supply
air hose.
If the controlled variable reading fails, the fil
-
ter must be cleaned or the grommet (order
no. 1590-6410) replaced.
Type 3433 Controller Modules
If the controller module does not control
properly or the output signal fails, unscrew
the restriction with filter (7 in Fig. 1 and
Fig. 23) located on left-hand side under
-
neath the comparator. It may be necessary to
unscrew and clean the filter or to replace it
(order no. 1390-0183).
Filter in restriction: item no. 0550-0193
Filters in push-on fittings of the controller
module: item no. 0550-0186
These two filters cannot be renewed.
In addition, the pneumatic connections on
the bottom of the housing have filters with
plastic rims (order no. 0550-0189) which
can be removed for cleaning.