WHILE WORKING ON A CRUSHER REPAIR, THE EE BUMPEDHIS HEAD ON AN OVERHEAD DUST COLLECTION PIPE. EESUSTAINED A STRAINED NECK.EE REPORTED INCIDENT ON 1/22/04 WORKED ENTIRE SHIFT. NEXT SHIFT STATED HIS NECK WAS SORE--TREATMENT AT CLINIC 1/23/04 RET'D TO WORK ON 1/23/04 NO RESTRICTIONS