ABB | SACE Emax 2
Putting into service and maintenance | 5 - Second level maintenance69 | © 2019 ABB | 1SDH001000R0002 - ECN000109166 - Rev. D
Continued from the previous page
Figure 92 - Lubricating the opening hook
• In the case of deformed or rusty springs, rings missing or severe wear of the operating device, contact
ABB Sace.
Inspection of electrical and
mechanical accessories
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.
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