What was found
(CAN) DURING CLIMB THE FLIGHT CREW OBSERVED THE NR 2 ELECTRIC HYDRAULIC PUMP, EMDP, OVERHEAT LIGHT ILLUMINATE. THE PUMP WAS SUBSEQUENTLY SHUTDOWN AND THE LIGHT EXTINGUISHED AFTER 10 MINUTES. DUE TO MAINTENANCE REQUIREMENTS AND NO MEL RELIEF IT WAS DECIDED AN AIR TURNBACK WOULD BE PERFORMED. MAINTENANCE CARRIED OUT THE FOLLOWING ACTIONS, SYS A EMDP CASE DRAIN FILTER REMOVED AND INSTALLED IAW AMM 29-11-41, PN 65-90305-58, BATCH 2558605. NO DEBRIS FOUND. EMDP REPLACED, FUNCTION CHECKED AND LEAK CHECKED IAW AMM 29-11-21. SYS SERVICEABLE. NO LEAKS. AFTER SUCCESSFULLY REPLACING AND TESTING THE EMDP THE ACFT WAS RETURNED TO SERVICE.