Hi,
SAP helped me to resolve this problem.
The main problem was that two infoobjects 0SMD_MEH1, 0SMD_EA2H, 0SMD_EA2D were increasing anormally, this infoobject recolect java exceptions and around 10000 records were loaded per day, because of this we got TIME_OUT dumps in the jobs of SM_EWFK user (housekeeping jobs)
We made many adjustments like deleting data of infocubes, dimensions, etc. and also I followed the recomendations of sap note 1480588 (Section 'Compress Infocube, Delete Requests, Update Statistics) and 1333571.
Regards
Andy