Question about play in XTR M 952 BB

[Me]

Hi, I have a two year old splined M 952 BB and it has developed the smallest (but noticeable) amount
of play in the BB

It is only noticable when grabbing both arms and wiggling back and forth.

My question is, though it is a cart BB is it possible to tighten the bearings up a smidge?

Any hints?

cheers