Maintenance, Repair And Cleaning - WIKA LGG serie Betriebsanleitung

6. Faults / 7. Maintenance, repair and cleaning
Faults
Glass level
gauge cannot be
mounted at the
planned place on
the vessel

7. Maintenance, repair and cleaning

Only use original parts (see chapter 10 "Accessories").
7.1 Maintenance
Carry out regular checks on glass level gauges:
Leak tests on connecting parts and valves
■
Visual inspection of glasses, glass tubes and mica shields for
■
damage and restricted transparency
Functional checks of valve heads
■
7.2 Repair of leaks
If the cause of the leak is not clearly visible, first test the screw
connections as described in chapter 5.2 "Mounting of models LGG-R,
LGG-T, LGG-M".
If the leak is not fixed by tightening the screw connections, then carefully
disassemble the glass level gauge.
Check the sealing, seal seating or sight glass for damage and, if
necessary, replace. Depending on the application, use sealing tape or
sealing paste to seal the plugs and threads.
Operating instructions glass level gauge, model LGG
Causes
Thread on the screwed
coupling at the vessel
defective
Mounting thread at the
glass level gauge defective
Centre-to-centre distance
of the vessel does not
correlate with the glass level
gauge
Process connections are
not attached parallel to one
another
Measures
Rework the thread or replace
the screwed coupling
Return to the factory
Modification of the vessel
Return to the factory
Modification of the vessel
EN
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