Yale B855 (MS12S-MS15S) Forklift Trucks Pdf Repair Service Manual

Yale B855 MS12S–MS15S Forklift Trucks PDF Repair Service Manual

A stacker that travels normally but will not lift, raises unevenly, or develops a steering or braking fault needs a different diagnostic approach depending on the affected system. The Yale B855 MS12S–MS15S PDF Repair Service Manual brings together technical reference information for investigating these issues across the truck's principal mechanical, hydraulic, and electrical assemblies.

Created for workshop technicians, maintenance personnel, and owners responsible for Yale electric stackers, this manual helps connect a symptom to the relevant system diagram or component group. It is useful when planning an inspection, locating an assembly before disassembly, or checking the configuration of a truck being serviced.

Start with the Mast, Forks and Lift Linkage

On a stacker, the mast and lifting arrangement are central to safe, dependable load handling. The published B855 service information includes separate references for two-stage and three-stage masts, along with mast cylinders, lift linkage, forks, load wheels, and the load backrest.

• Two-stage and three-stage mast assemblies
• Mast cylinder and hydraulic lifting arrangements
• Forks, lift linkage, and load backrest
• Load wheels and support-wheel assemblies
• Hydraulic unit and related system diagrams

Drive, Steering and Braking References

Travel-related problems may involve the drive unit, reduction gear, traction motor, steering group, or braking system. The B855 documentation separates these assemblies into dedicated sections. It also lists different traction-motor and brake-system references for particular serial-number ranges, which can help technicians narrow down the applicable configuration before working on the truck.

Additional technical material identifies the electronic COMBI controller, multifunction digital instrument (MDI), EPS-DC electric power steering, and wire-guidance system. These references are relevant when a fault involves electronic control, steering response, or a truck equipped with wire guidance.

Electrical Diagnosis and Component Identification

Electrical service work benefits from diagrams that show how components and connections are arranged. Listed B855 documentation includes the electrical arrangement, power cables, cable sheaths, connectors, contacts, and tools. Related service files cover controller electronics and the reducer, supporting a more systematic approach to inspecting the electrical and drive systems.

When checking an older or previously repaired stacker, compare the truck's identification and serial number with the applicable manual section. This is especially important where the documentation specifies a change in traction motor or brake configuration by serial number.

Yale B855 Machine Information

PDF Manual Details

Make Your Next Service Job More Organized

• Locate the right assembly: Use the dedicated mast, hydraulic, drive, steering, and brake sections to find relevant system information.
• Review electrical connections: Consult the listed wiring, cable, connector, and controller references when investigating electrical faults.
• Check truck configuration: Use model and serial identification to help select the appropriate component reference.
• Keep technical information accessible: A digital PDF lets you search, zoom, and print the pages useful for your repair workflow.

Get the Yale B855 Stacker Repair Manual

Whether you are investigating a mast issue, checking the traction unit, or tracing an electrical fault, the right service reference can make it easier to identify the system involved before work begins. Order the Yale B855 MS12S–MS15S Forklift Trucks PDF Repair Service Manual from Manualskart.com for convenient digital access to technical information for your Yale stacker.

Frequently Asked Questions

Does the B855 manual cover both two-stage and three-stage masts?

Published B855 service information lists separate sections for two-stage and three-stage masts, including related hydraulic arrangements and mast cylinders.

Why should I check the serial number before servicing the truck?

The listed documentation identifies different traction-motor and brake-system references for certain serial-number ranges. Checking the truck identification helps you find the relevant section.

Is wire guidance included in the documentation?

Wire guidance and EPS-DC electric power steering appear among the listed technical topics. Applicability depends on the truck's equipment configuration.

Can this manual help identify hydraulic lifting components?

Yes. The published contents include hydraulic arrangements, the hydraulic unit, mast cylinders, forks, and lifting-related assemblies.

Is this a parts catalogue or a service manual?

This product is intended as a repair and service reference. If you need illustrated replacement-part numbers, confirm whether a separate B855 parts catalogue is also required.