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Once in two years, it is recommended to lightly smear the gearing of the position sensor drive. Lubricant CIATIM 201
or PM MOGUL LV 2-3 should be used.
Within half a year at the latest after putting the actuator into operation and then at least once a year,
retighten the screws connecting the valve with the actuator. The screws are to be tightened in a cross-wise manner.
13. FAILURES AND THEIR REMOVAL
The actuator is in its limit position and does not start; the motor hums. Make a check for possible interrupted phase.
If the valve is wedged and cannot be moved using the hand wheel or motor, dismount the actuator and release
the closure mechanically.
Cleaning - general inspection
The electric actuators should be kept clean and attention should be paid to prevent their clogging with dirt and dust.
Cleaning should be carried out regularly and as often as required by operation conditions. Occasionally, it is necessary
to make sure that all connecting and earthing terminals are properly tightened in order to prevent their heating during
operation. The general inspection of the actuator is recommended once in 4 operating years unless otherwise specified in
the revision regulations of electric devices.
