MAIRBUS: MEL maintenance ((m)) tasks performed my pilots
 

In the airbus document “ Getting to Grips with MMEL and MEL “ , there a section that says the following
“Maintenance personnel usually perform maintenance procedures, but flight crew, or other qualified and approved personnel may perform some elementary maintenance tasks “
I’ve spend about 20 minutes looking into the MEL and so far for every maintainance item (m) , follows an AMM task for which pilots don’t have access and do not deal with .
I am just wondering if there are elementary maintenance tasks that are not followed by an AMM signaling to the pilots that they can perform the maintenance task , or if there are maintanance tasks for which an initial action can be done by the pilot so he alone can continue with dispatch ( and the AMM is for the Engineer to follow after flight to deal completely with the issue ) , or a list of these elementary maintenance tasks are defined by the operator .