EE STATED THAT WHILE WORKING ON THE DRAGLINE DURING A REPAIR JOB ALL THE CLIMBING BENDING KNEELING CAUSED HIM KNEE PAIN. EE WORKED UNTIL 7-10-02 WHEN IT THAT TIME HE STARTED LOSING TIME BECAUS E OF CONTINUING KNEE PAIN. EE DID NOT SLIP, FALLTWIST OR REPORT ANYTHING UNSUAL. EE IS PRESENTLY TAKING STENGTHENING PHYSICAL THERAPY AND IS OFF.