A RISH EQUIPMENT MECHANIC PULLED HIS SERVICE TRUCK INTO THE PIT NEXT TO A HITACHI SHOVEL. AFTER MECHANIC WORK WAS COMPLETED ON THE SHOVEL, THE MECHANIC GOT INTO HIS TRUCK TO LEAVE THE PROPERTY . THE SHOVEL OPERATOR STARTED THE SHOVEL AND SWUNG AROUND BEFORE THE MECHANIC WAS CLEAR. THE SHOVEL'S COUNTERWEIGHT STRUCK THE CAB OF SERVICE TRUCK INJURING THE MECHANIC.