hello...
that is correct ,only the accumlator px is required.
but my concerns were : what if you lose the accu px...and you have already shut down eng no.1 .
i know i am exaggerating here...but i just wanted to do the correct procedure taking into account the worst case scenario...and also to avoid following other fellows who have no idea but to do what they have seen before and to repeat even if it is wrong .
PHAROH thank you for directing me to the right direction.
once again ...thanx