Inspection Of Electrical And Mechanical Accessories - ABB SACE Emax 2 Installation, Operation And Maintenance Instructions

Inspection of electrical and
mechanical accessories
55 | © 2021 ABB | 1SDH002083A1002 - ECN000119014 - Rev. A
Continued from the previous page
Figure 82 - Lubrication of the opening hook
• In the case of deformed or rusty springs, rings missing or severe wear of the operating device, contact
ABB Sace.
Check the accessories:
1. Check that the accessories are securely fixed to the circuit-breaker.
2. Check that the accessories are connected correctly to the circuit-breaker.
3. Make sure that the coils (YU-YO-YC) are in good condition (no excessive wear and tear, overheating,
rupture).
4. Make sure that the mechanical operation counter functions correctly (if present) by operating the
circuit-breaker.
5. Check the wear on the brushes of the gearmotor and if necessary replace them.
NOTE: it is advisable to replace the gear motor if it has performed more than 10000 spring
charging operations or reached 50% of the declared mechanical life of the circuit-breaker.
Putting into service and maintenance | 5 - Second level maintenance
ABB | SACE Emax 2