ON 7-17-02 EE WAS REMOVING THE TRANSMISSION FROM A D-11 DOZER. AS THE RIPPER TABLE DROPPED OFF THE WOOD BLOCKS, EE LOST HIS BALANCE & FELL TO FLOOR, TWISTING HIS RT ANKLE. HE WAS TAKEN TO TERR E HAUTE REGIONAL HOSPITAL ER, WHERE HE WAS EXAMINED, X-RAYED & REFERRED TO OUR COMPANY DR & PUT ON RESTRICTED DUTY TIL HIS FOLLOW UP VISIT 7-29. THE X-RAYS WERE NEGATIVE & NO LOST TIME.