SEF 551.10, Operating Manual, Page: 194 / 238

Page 9.46
9.0 Maintenance and service
Maintenance 551_15 \ 1
1.2014 \
y
Loosen the holding screw with washer of the temperature
sensor.
y
Pull out the sensor of the small tube.
y
Loosen all cable clips of the sensor cable on the heating
module and remove the clips from the cable.
y
Now follow the cable till the controller board RO-R2,
remove possible cable straps carefully and pull out the
connector from the board.
y
Now remove the complete mantle thermocouple from the
soldering system.
y
Insert a new temperature sensor in the small tube inside
the heating module and fix the sensor under the washer.
Fix the screw only slightly so that you don't damage the
sensor.
y
Guide the sensor cable over the heating module and fix it
again with the cable clips on the distance bolts.
y
Insert the module again and make sure that the terminal
holder snapped in.
y
Connect the connector angle with the plug-in connector
again. Pay attention to the correct fitting.
Screw with washer Temperature sensor
Mount upper heat-
ing module
Exchange upper
temperature sensor