AFTER CHANGING THE AIR FILTER ON THE LUBE TRUCK EMPLOYEE ATTEMPTED TO STEP DOWN USING A STEP LADDER. HE LOST HIS BALANCE AND GRABBED THE EDGE OF THE HOOD TO KEEP FROM FALLING. HE RCVD. A LACER ATION TO HIS RIGHT RING FINGER THAT REQUIRED 5 STICHES. HE WAS TREATED AND RELEASED BACK TO WORK THAT DAY.