What was found
ON DEPARTURE CLIMB WITH AUTO PILOT NR 2 ON WHEN THE SLATS WERE RETRACTED THE ACFT GAVE VERY HARD TO THE RT. THE AILERONS COMPENSATED BY GOING LT 6 UNITS. AT THIS POINT WE CHECKED THE FLIGHT CONTROL POS PAGE & SPOILERS 7, 6 & 5 ON THE LT WING WERE UP. AFTER DISCONNECTING THE AUTO PILOT EVENTUALLY THE SPOILERS CAME DOWN. BUT THE AILERONS STILL SHOWED HANDS LT. CONSULTED QRH & DECIDED TO RETURN FOR AN OVERWEIGHT LANDING. REMOVED AND REPLACED THE PULLEY AT RT WING ROOT (IPC 27-11-05-2/ITEM90, P/N:NSA8121-11) PER AMM 20-29-11-00, PERFORMED ADJUSTMENT OF CONTROL CABLE TENSION PER AMM27-10-00-05, CHECKED NML, PERFORMED OPERATIONAL TEST PER AMM 27-11-00-05 SATIS. FLIGHT TEST SATISFACTORY.