EE WAS ATTEMPTING TO REMOVE A HYDRAULIC HOSE FROM 36031 BACKHOE. THE BOLTS SECURING THE HOSE WERE NOT EASILY ACCESSIBLE & THIS PREVENTED HIM FROM BEING ABLE TO USE AN IMPACT WRENCH. HE ENDED U P USING A BREAK OVER BAR & CHEATER PIPE. AS HE WAS APPLYING DOWNWARD PRESSURE, HIS HANDS SLIPPED OFF THE CHEATER PIPE & IT SPRANG UPWARD & HIT HIM IN THE MOUTH. THE IMPACT LACERATED HIS LIP &