Cleaning And Lubrication Of The Operating Mechanism; Inspection Of Electrical And Mechanical Accessories - ABB SACE Emax 2 Installation, Operation And Maintenance Instructions

Cleaning and lubrication of the
operating mechanism
Inspection of electrical and
mechanical accessories
48 | © 2021 ABB | 1SDH002083A1002 - ECN000119014 - Rev. A
To clean and lubricate:
1. Clean the closing shaft and closing hook at the point indicated. In the case of excessive deposits you
can use a laminate thinner such as Henkel 273471 or Chemma 18 or equivalent.
2. Lubricate the closing shaft and closing latches in the indicated points using Mobilgrease 28 (EXXON
MOBIL).
3. Make sure that the closing shaft is free to rotate.
Figure 70 - Lubrication of closing latch and shaft
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), if present, 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 | 4 - First level maintenance
ABB | SACE Emax 2