ABB EMAX 2 E4.2 Instruction Handbook Manual page 60

60
INSTRUCTION HANDBOOK
6.13 PHASE 13 – ARCHING CHAMBERS
Actions to be performed
Tools
Torx key
221
By means of the torx key unscrew the 2 screws
fixing the arching chamber to the pole. *
No. 30
Cross screwdriver
Flat screwdriver
* 2 addititional screws must be unscrewed on circuit breakers
with V breaking capacity (red circles indicate position of the 2
additional screws)
223
By means of the flat screwdriver unhook the 2
appendices fixing the arc quenching and the
plate to the arching chamber main structure.
222
Manually remove the arching chamber.
224
Manually remove the arc quenching and
the plate from the arching chamber main
structure; operation to be repeated on the
other side of the arching chamber main
structure.