. FOREWORD NECESSARY INFORMATION NECESSARY INFORMATION When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following items. PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE ENGINE SERIAL NO. PLATE AND POSITION 1 - 9 On the center right of the front fram The design of the nameplate differs according to the territory. On the right of the cylinder block, w hen seen from the fan side.