Disassembly Process - ABB EMAX 2 E2.2 Disassembly Instructions Manual

Disassembly instruction emaX 2 e2.2
Description
Auxiliary flat assembly
RTC micro lever
MID main structure
Springs charging lever
Operating mechanism
Auxiliary contacts cam
Cam
Lever
Measuring module connector
Protections
Spacers
Arc quenchings
Spacers
Sensors plugs
Sensors
Cables
Insulating protections
Insulation protections
Contacts spacers
* 24 spacers for circuit breakers characterized by a current rating of 2000A and 12 spacers for circuit breakers characterized by a
current rating up to 1600A
If disassembled parts require a separate treatment a specific indication is provided inside each phase
with reason why for the separate treatment (see Chapter 6).

6. DISASSEMBLY PROCESS

Circuit breakers disassembly process is constituted by a sequence of operations to be performed on
products after their dismounting from original installation. For each phase following information are
provided:
• Part/parts to be disassembled (title of the phase)
• Tools to be used
• Description of actions to be performed
• Pictures showing actions to be performed
• List, quantity and picture of disassembled parts with an indication about separate treatment (when
applicable)
• In case of potential hazards signal below is reported
Position inside circuit breaker
Mounted on the MID
Mounted in the MID
Mounted in the MID
Mounted on the operating mechanism
Mounted on the center of the circuit breaker
Mounted on operating shaft assembly
Mounted on operating shaft assembly
Mounted on operating shaft assembly
Mounted behind the trip unit and connected with poles
Mounted in correspondence of rear terminals
Mounted in correspondence of rear terminals (for UL only)
Mounted in arcing chambers
Mounted in arcing chambers
Mounted in poles
Mounted in poles
Mounted in poles
Mounted in poles
Mounted in poles
Mounted in poles
5
Quantity
1
1
1
1
1
1
1
1
1
6
24 or 12*
6
3
3
3
3
3
3
3