Market Segment:
Electric counterbalanced forklift trucks for various industrial applications, offering reliability and performance.
Key Competitors:
Competes with other major forklift manufacturers such as Hyster, Crown, Mitsubishi, and Toyota in the electric forklift market.
Vehicle Features:
Electric powertrain, robust construction, efficient hydraulics, advanced electronic control systems (SEM system), and ergonomic operator compartments.
Manual Value Proposition:
Provides comprehensive, original factory data for efficient operation, routine maintenance, and in-depth repair of specific Yale forklift models.
Primary Systems:
Electric Motor Maintenance (Traction and Pump), Drive Unit Assembly, Brake System (Service and Parking), Steering Axle Assembly, Power Steering System, Hydraulic System, Mast Systems (Two-Stage Limited Free-Lift, Two-Stage Full Free-Lift, Three-Stage Full Free-Lift), Battery and Charger System
Maintenance Procedures:
Daily checks, lubrication schedule, fluid changes, filter replacement, electrical inspections, brush inspection and replacement, tire and wheel maintenance, battery maintenance and charging.
Repair Procedures:
Component disassembly and assembly (motors, drive units, brake components, steering components, hydraulic components, mast components, cylinders), welding repairs, frame repairs, hydraulic tank repairs, tire replacement.
Troubleshooting:
Detailed troubleshooting guides for electrical systems (motor controllers, sensors, switches), brake systems, steering systems, and hydraulic systems, including status code charts for electronic control systems.
Diagnostic Capabilities:
Advanced diagnostics for transistor motor controllers (SR and SP) using hand sets and PC software (ITW SWITCHES), including parameter adjustments, function descriptions, and status code analysis.
Rebuild Procedures:
Comprehensive rebuild procedures for drive unit assemblies, including differential and speed reducer disassembly and assembly, motor disassembly and assembly, and bearing installation with shim procedures.
Mast Type Options:
Two-Stage Limited Free-Lift, Two-Stage Full Free-Lift, Three-Stage Full Free-Lift
Lifting Capacity Range:
ERC030 (3000 lbs / 1360 kg) to ERC040 (4000 lbs / 1815 kg) nominal capacity
Battery As Counterweight:
Battery weight contributes significantly to overall vehicle stability and counterweight.
Operational Safety:
Emphasis on safety procedures, especially when working near the mast, including daily operator check-off lists and proper blocking procedures.
Braking System:
Service brakes (likely hydraulic), parking brake, regenerative braking capabilities integrated into motor controller operation.
Operator Interface:
Control levers, pedals, horn, and display panels (Standard and Premium SEM display panels) with warning indicators.
Operator Restraint:
Operator restraint system mentioned, likely referring to the seat and possibly seat belts or other restraints.
Component Protection:
Battery restraint system, counterweight, overhead guard (implied for forklift operation).
Operator Display:
SEM Display Panel (Standard and Premium versions) providing operational status, battery state-of-charge (BDI), hourmeter, and diagnostic indicators (e.g., wrench symbol).
Control Systems:
Advanced AC motor control with features like regenerative braking, controlled acceleration, current limit, and creep speed functions.
Diagnostic Tools:
Ability to connect a PC with ITW SWITCHES software program for detailed diagnostics, parameter adjustments, and setup file creation for motor controllers.
On Demand Steering:
Components and checks for 'On-Demand' steering systems, implying advanced steering control.
Electronic Diagnostics:
Detailed troubleshooting charts for status codes generated by the SEM system, aiding in rapid fault identification.
Routine Maintenance:
Detailed schedules for every 8 hours/daily, 250 hours/6 weeks, 500 hours/3 months, and 2000 hours/yearly, covering lubrication, inspections, fluid changes, and component checks.
Hydraulic Fluid:
Specifications for hydraulic oil type and capacity, including procedures for changing the hydraulic oil and filter.
Brake Fluid:
Reference to brake fluid, indicating its use in the service brake system, with procedures for checking and refilling.
Differential Fluid:
Specifications for oil type and capacity for the differential and speed reducer, with change intervals.
Common Wear Items:
Motor brushes, contactors, lift chains, wheel bearings, steering kingpins, and hydraulic seals are typical wear items covered by maintenance and replacement procedures.
Electrical Diagnostics:
Extensive diagnostics for electronic control modules, transistors, sensors, and switches, crucial for AC motor controller systems.
Lift Chain Care:
Procedures for checking lift chain wear, lubrication, and adjustments at specified intervals.
Mast System Care:
Procedures for inspecting and adjusting mast components, including cylinders, carriages, and hoses.
Manufacturer:
Yale Materials Handling Corporation, a long-standing and reputable manufacturer in the industrial truck industry.
Technology Advancements:
Incorporates advancements in electric motor control (AC technology, SEM systems) for improved efficiency, performance, and diagnostics compared to older DC systems.
Production Era:
Specific production years not provided, but Type A814 with SEM systems suggests models from the late 1990s or 2000s onwards.
