EE and EE's partner were trying to push a new troughing idler into position on the 215 Belt Conveyor when EE tweaked lower back. EE informed the supervisor and no first aid was requested. Because of ongoing back pain EE was sent to the doctor on 4/19/24. Diagnosis: low back pain. Work status: Restricted Duty. Limit bending, pushing, pulling, lifting to 15lbs or less.