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

Cleaning and lubrication of the
operating mechanism
Inspection of electrical and
mechanical accessories
Inspection of the protection
release
255 | © 2013 ABB | 1SDH001000R0002 - L7804
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 equivalent.
2. Lubricate, in the points indicated, the closing shaft and closing hook with grease
Mobilgrease 28 (EXXON MOBIL).
3. Make sure that the closing shaft is free to rotate.
Figure 94 - Lubricating the shaft and closing hook
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: you are recommended to change the gearmotor if it has performed more than
10000 spring loading operations.
Check that the release is in good condition:
1. Power the protection release with an Ekip TT battery unit.
2. Check the correct operation of the protection release: tripping test with "Trip Test" and
"Self-test".
3. With an Ekip Dip release, verify the absence of alarms via the front LEDs.
4. With an Ekip Touch release, verify the absence of alarms via the display and the front
LEDs.
5. Make sure that the cables are correctly connected to the release modules and to the
release itself (if applicable).
6. On an Ekip Touch release check the percentage of wear on the contacts of the circuit-
breaker.
7. Finally, remove the Ekip TT battery unit.
Putting into service and maintenance | 4 - First level maintenance
ABB | SACE Emax 2