. FOREWORD NECESSARY INFORMATION ordering replacement parts, please inform your Komatsu distributor of the following EPA: Environmental Protection Agency, U.S.A. 1 - 8 NECESSARY INFO When requesting service or o items. PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL On the center right of the fron The design of the nameplate differs according to the ENGINE SERIAL NO. PL One is located on the left side of machine, i.e. on the upper left surface of the engine cylinder block and the other on t he muffler bracket on the