FOREWORD NECESSARY INFORMATION NECESSARY INFORMATION 0. When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following items. PIN/MACHINE SERIAL NO. PLATE AND POSITION 0. On the center right of the front frame. 9JA03026_gb ENGINE SERIAL NO. PLATE AND POSITION 0. This is at the top of the side face of the engine of the cylinder block on the left side of the machine and on the muf- fler bracket on the right side of the machine. 1-7