B737-300 CREW RESET A POPPED FUEL PUMP CIRCUIT BREAKER CONTRARY TO FOM PROC.

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WE WERE CRUISING AT FL370 WHEN THE CAPT LOOKED UP AT THE FUEL PANEL AND NOTICED THE #1 FORWARD AND #2 AFT FUEL PUMP LOW PRESSURE LIGHTS ILLUMINATED; FOLLOWED SHORTLY THEREAFTER BY THE MASTER CAUTION LIGHT. WE CHKED THE CIRCUIT BREAKERS AND FOUND THAT THE #1 CIRCUIT BREAKER FORWARD AND #2 AFT; AND CTR R WERE POPPED. WE CONSULTED THE QRH AND; AFTER A FEW MINS; RESET THE CIRCUIT BREAKER. THE CIRCUIT BREAKER POPPED BACK OUT. IT WAS ABOUT 1 MIN LATER THAT THE CAPT REMEMBERED SOMETHING ABOUT FUEL CIRCUIT BREAKERS IN THE LIMITATION SECTION OF THE FOM AND OPENED IT UP. WE THEN REALIZED WHAT WE DID WENT AGAINST WHAT WAS WRITTEN THERE. WE SHOULD HAVE NOT RESET THE CIRCUIT BREAKERS. I BELIEVE 3 FACTORS CONTRIBUTED TO US SCREWING THIS UP. THE FIRST AND FOREMOST; WE WERE NOT AS FAMILIAR WITH THE LIMITATION SECTION OF THE FOM AS WE SHOULD HAVE BEEN. IT IS A MEMORY RECALL LIMITATION. SECOND; IT IS A HABIT PATTERN; AT LEAST FOR ME; TO LOOK FOR TRIPPED CIRCUIT BREAKERS AND RESET THEM ONCE. THIRD; SINCE WE CONSULTED THE QRH FIRST AND FOLLOWED ALL ITS GUIDANCE (DSND TO FL300 OR LOWER; BOOST PUMP; ETC) IT WOULD HAVE BEEN OF GREAT VALUE TO HAVE THAT RESTR LISTED THERE.