This comprehensive Hyster A187 (S40XL S50XL S60XL) Forklift Service Manual provides detailed instructions and diagrams for servicing, repairing, and maintaining your forklift. It covers a wide range of topics including:

* **Capacities and Specifics:** Detailed information on the forklift's specifications, including lifting capacities and other vital details.
* **Diagrams:** Clear and precise illustrations of various components and systems, making it easier to understand and locate parts during repairs.
* **Four-Stage Uprights:** Thorough instructions for servicing and repairing the four-stage upright system.
* **Repairing GM Engine:** Detailed step-by-step guides for troubleshooting and repairing the GM engine powering your forklift.
* **High Energy Ignition (HEI) System:** Comprehensive explanation and repair procedures for the HEI system, ensuring smooth engine operation.
* **Inch (SAE) and Metric Fasteners:** Complete information on both inch and metric fasteners used in the forklift, aiding in proper part selection.
* **Instrument Panel Indicators and Senders:** Detailed explanations of all instrument panel indicators and senders, allowing you to understand and diagnose issues.
* **Lift Cylinders:** In-depth instructions for servicing and repairing the lift cylinders, ensuring safe and reliable lifting operations.
* **Periodic Maintenance:** A detailed schedule for regular maintenance tasks to keep your forklift in optimal condition.
* **Brake System:** Thorough coverage of the brake system, including components, troubleshooting, and repair procedures.
* **Cooling System:** Detailed information on the cooling system, including components, troubleshooting, and repair procedures.
* **Drive Axle:** Comprehensive insights into the drive axle, providing guidance on diagnostics and repairs.
* **Electrical System (Isuzu and Mazda):** Detailed instructions for troubleshooting and repairing the electrical system for both Isuzu and Mazda engine models.
* **Frame:** Clear explanations and instructions for inspecting and repairing the forklift frame.
* **Gasoline Carburetor:** In-depth information on the gasoline carburetor, including troubleshooting and repair procedures.
* **Hydraulic Pump Drive Assembly:** Step-by-step instructions for servicing and repairing the hydraulic pump drive assembly.
* **Hydraulic System, Gear Pump Assembly:** Thorough coverage of the hydraulic system, including components, troubleshooting, and repair procedures.
* **Isuzu Engine:** Detailed information on the Isuzu engine, including maintenance, troubleshooting, and repair procedures.
* **LPG Fuel System:** Comprehensive instructions for servicing and repairing the LPG fuel system.
* **Main Control Valve:** A complete guide to the main control valve, including maintenance and repair procedures.
* **Mazda M4-121G Engine:** Detailed instructions for troubleshooting and repairing the Mazda M4-121G engine.
* **Rochester Carburetor:** Comprehensive explanation and repair procedures for the Rochester carburetor.
* **Single-Speed Powershift Transmission - Description and Operation:** A thorough explanation of the single-speed powershift transmission, including its operation and components.
* **Single-Speed Powershift Transmission - Repairs:** Detailed instructions for troubleshooting and repairing the single-speed powershift transmission.
* **Steering Axle:** Complete information on the steering axle, including maintenance and repair procedures.
* **Steering Control Unit:** In-depth instructions for servicing and repairing the steering control unit, ensuring precise control.
* **Tilt Cylinders:** Thorough coverage of the tilt cylinders, including maintenance and repair procedures.
* **Vista Uprights - Description and Repair:** Detailed information on the Vista upright system, including components, troubleshooting, and repair procedures.

This manual is a valuable resource for both professional technicians and DIY individuals looking to effectively service and repair their Hyster A187 (S40XL S50XL S60XL) forklift.

The Hyster A187 is a powerful and versatile forklift designed for heavy-duty applications, featuring the XL Series models S40XL, S50XL, and S60XL. These forklifts are built for demanding environments and boast robust features for optimal performance and durability. The A187 series is equipped with a durable and reliable internal combustion engine, providing ample power for lifting and moving heavy loads. The S40XL boasts a lifting capacity of 40,000 lbs., while the S50XL and S60XL offer lifting capacities of 50,000 lbs. and 60,000 lbs., respectively. This allows them to handle a wide range of materials, from pallets and containers to large machinery and industrial equipment. The A187 models feature a spacious and ergonomically designed operator cab that provides a comfortable and safe working environment. The cab incorporates features like adjustable seats, intuitive controls, and excellent visibility for enhanced operator experience and productivity.

The A187 series forklifts are designed for high-intensity use in various industries, including manufacturing, warehousing, construction, and distribution. With its superior lifting capacity, robust construction, and operator-focused design, the Hyster A187 is a reliable workhorse for handling heavy loads and maximizing productivity in demanding environments. The S40XL, S50XL, and S60XL models offer a range of lifting capabilities tailored to specific applications and material handling needs. Their advanced features, such as the optional Hyster Stability System (HSS) and the intelligent hydraulic system, contribute to increased safety, efficiency, and overall performance. The A187 series also prioritizes serviceability, with easy access to key components for routine maintenance and repairs. This translates to reduced downtime and optimized operational efficiency for businesses relying on these forklifts for their daily operations.