WÄRTSILÄ PAAE051728, Instruction Manual

Page: 345 / 394

3 Check the switch
by observing at which pressure the mi-
cro switch breaks. Correct pressure is stated in the engine
specifications and printed on the switch itself.
4 Adjust or replace the switch if necessary.
5 In case of erroneous function
also check connection and
wiring.
23.3.2.4 Temperature switches
Temperature switches are also fitted into special pockets and can
be lifted off for checking during operation. The check can be
carried out with a temperature calibrator and by observing the
temperature at which the microswitch breaks. The correct tem-
perature is stated in the engine specifications and printed on the
switch itself. If necessary the switch must be adjusted or replaced.
Also check connection and wiring for damages.
23.3.2.5 Other switches
These switches are mechanical switches which can be checked
while the engine is out of operation.
1 Turn the control shaft
until the load indicating switch op-
erates.
2 Check which load this corresponds to.
23.3.2.6 Testing of sensors/transducers inputs by simu-
lation
It is also possible to test each sensor/transducer input to WECS
by simulation of the measured signal type. For this purpose a
multitest device is available (848112).
32-200115/II Instrumentation and Automation 23
WÄRTSILÄ 32 23-11