EE IS NORMALLY ASSIGNED TO DRAGLINE OPERATOR/OILER HE WAS TEMP ASSIGNED DUTY OF WHEEL LOADER OPERATOR. AFTER 3 SHIFTS HE EXPERIENCED PAIN IN HIS NECK & NUMBNESS IN HIS LEFT HAND. THIS MAY BE RELATED TO A PRIOR INJURY & WAS AGGRAVATED BY THE BOUNCING MOTION OF THE LOADER. EE IS A QUALIFIED LOADER OPERATOR