This service repair manual covers Hyster A187 series lift trucks, including the S40XL, S50XL, and S60XL models. These industrial vehicles are engineered for demanding material handling applications, featuring robust construction and reliable performance. The manual addresses various engine options, including GM, Isuzu, and Mazda M4-121G engines, along with their associated ignition and fuel systems. It also details the single-speed Powershift transmission, crucial for efficient operation in warehouse and industrial environments. This comprehensive English-language manual provides essential information for the maintenance and repair of your Hyster lift truck. It includes detailed procedures for periodic maintenance, fluid capacities, and the repair of key components such as uprights, cylinders, and hydraulic systems. Technical data, diagrams, and parts lists are also covered, ensuring that owners, mechanics, and technicians have the necessary resources to keep the vehicle in optimal working condition. Troubleshooting guidance and safety information are integral to the manual's scope.