EE has worked in lube/fuel group at this mine for nearly 8 yrs. EE's regular job duties require EE to push/pull various tools, perform overhead work, & make other repetitive motions. On 5/21/18 EE was changing fuel filters on a Cat 793 end dump & began experiencing some pain & tingling in left hand. Conservative treatment didn't work & EE was diagnosed w/Carpal Tunnel Syndrome