Siemens 3TM, Руководство по эксплуатации

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Maintenance
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2020-09-18
- If the value is below the limit - turn the adjusting nut (42) clockwise at least
one turn, approx. 1.5 mm lower. A complete turn corresponds to approx.
1.25 mm.
- If the value is above the limit – turn the adjusting nut (42) counter-clockwise
at least one turn, approx. 1.5 mm higher.
• Use the open-end spanner to prevent the adjusting nut (42) from turning and
securely tighten the locking nut (41).
• Visual inspection for uniform switching movement of the vacuum interrupters.
This is done by manually switching the vacuum contactor CLOSED and OPEN
again.
• Function check of mechanical parameters such as on-time and off-time, see
“Rated data of solenoid actuator”, Fig 14.
• Repeat steps as necessary until all limits have been set.
• After successful adjustment – install the vacuum contactor in the switchgear.
Cleaning The insulating parts must be clean if their dielectric strength is to be guaranteed.
Rub insulating parts with a moist cloth.
As a cleaning agent, use only warm water with a mild, liquid household cleaner add-
ed and leave to dry.