Contract trucker working for customer, K.C. Trucking, used a tire gauge to realign the fan belt on his truck with the engine running. In the process three finger/tips on his left hand were cut off. Injured trucker was taken to hospital and is now home recuperating. K.C. Trucking does not have an MSHA contractor ID#. K.C.Trucking: phone # 763 420-6116.