EE WAS TAKING A SAMPLE FROM W-10 CONVEYOR SAMPLETAKER. EE STATED HE PULLED HARD DUE TO THE SCOOPSOMETIMES STICKING. WHEN SCOOP CAME OUT OF HOLDER, THE WEIGHT OF THE SAMPLE DROPPED AT WHICH TIM E THE EE GRABBED TO CATCH THE SAMPLE CAUSING PAIN IN LOWER BACK. SAMPLE WEIGHT FULL SCOOP IS 45 LBS.