ALWAYS PUT A DROP OF 3IN ONE ON THE JACK SCREWS IF YOU'VE GOT THE ACTION ON THE BENCH PRIOR TO ANY OTHER REPAIR, WHEN YOU GET TO THEM, THEY WILL BE ABLE TO BE TURNED, IF NOT THEN HEAT AND GENTLY TURN THEM UNTIL THEY ARE ABLE TO MOVE...THE HEAT SHOULD WORK BY ITSELF HOWEVER. TM
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