This Service Repair Workshop Manual provides comprehensive information for the L177 series forklifts, including models H40FT, H50FT, H60FT, and H70FT. These Class 5 Internal Combustion Engine Trucks, designed for efficient material handling with pneumatic tires, represent a commitment to engineering quality and operational reliability. This manual is an essential resource for understanding and maintaining the robust performance of these industrial machines. The purpose of this manual is to offer detailed guidance for the maintenance, repair, and diagnostics of your forklift. It covers a wide array of systems, including the LPG and gasoline fuel systems, electrical and hydraulic systems, brake and steering systems, engine repair for GM, Mazda, and Yanmar engines, transmission repair, and more. With clear procedures, diagnostic trouble codes, operational checks, periodic maintenance schedules, and calibration instructions, this English-language manual is designed to assist owners and technicians in keeping their equipment in optimal working condition.