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8
INSTRUCTION HANDBOOK
6.4 PHASE 4 – OPERATING MECHANISM, TRIPPING SHAFT AND TRIP
UNIT COVER
Tools
Actions to be performed
Flat screwdriver
8
As preliminary action by means of the flat
Cross screwdriver
screwdriver push up the 2 pins located in
correspondence of the operating mechanism
and after remove the 2 pins.
Torx key
No. 10
10
By means of the torx key unscrew the 4 screws
fixing the operating mechanism to the circuit
breaker main structure.
Disassembled part
9
By means of the cross screwdriver unscrew the
2 screws fixing the trip unit cover to the circuit
breaker main structure and remove the trip unit
cover.
11
Manually remove the operating mechanism
together with the tripping shaft.
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