INJURED WAS PULLING A TRAM MOTOR FROM THE MINER WHEN HIS SHALE BAR SLIPPED, CAUSING HIM TO STRAIN HIS LOWER BACK. HE HAS HAD TROUBLE OUT OF HIS BACK FOR SOME TIME. HE WENT TO THE DR. ON 5-12. HE STARTED MISSING WORK ON 5-14.THE DR. SAID HE (EE) WOULD BE OFF WORK 4-6 WEEKS.