This document provides an overview and service manual for the TOYOTA FORKLIFT 5FG10-30/5FD70-30 Series. It covers the models produced between August 1988 and August 1989, as well as models after September 1989, which underwent minor changes. The manual is intended to provide technicians with information to correctly service the corresponding forklift models. It also lists reference manuals for the mounted engines. Any future changes or modifications will be communicated through Toyota Industrial Vehicles' Parts & Service News.