WIKA 73 Manual De Instrucciones página 14

5. Commissioning, operation
The liquid filling must be checked on a regular basis.
The liquid level must not drop below 75 % of the instrument diameter.
Heavy shocks, oscillations and vibrations lead to imprecise values,
EN
increased wear in the transmission mechanism, and fractures on
welded or soldered joints.
When mounting a rotatable and inclinable gas-actuated thermometer,
the specific instructions must be followed. The following steps must be
taken in order to set the indicator to the desired position:
1. Loosen the lock nut or union nut at the process connection.
2. Loosen the hexagon bolts and slotted screws at the swivel joint.
3. Position the indicator as required, tighten the hexagon bolts and
slotted screws, and finally tighten the lock nut or union nut firmly.
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loosen
Make sure to loosen the screws
on the opposite side as well!
WIKA operating instructions models 73, 74, 75