This Service Repair Manual covers Hyster W40XL, W60XL, B40XL, and B60XL forklifts from the D135 generation. These electric walkie/rider forklifts are engineered for efficient material handling operations. Their robust construction and reliable performance make them essential tools in various industrial and warehousing environments. This comprehensive manual provides detailed information essential for the maintenance and repair of your Hyster forklift. It includes procedures for the frame, DC motor, master drive unit, steering mechanism, brakes, walkie hydraulic system, electrical system, motor controller, and lifting mechanism. Additionally, it covers periodic maintenance schedules, capacities, specifications, and diagnostic diagrams to ensure optimal operation and longevity.