Hydraulic Systems

This comprehensive training program consists of nine videotapes/DVD’s that train students to understand the principles of hydraulic system operation, as well as how to operate, maintain, troubleshoot, and repair a variety of hydraulic equipment.

Audience: This program is excellent both for the training of maintenance personnel as well as for the multi-craft training needs of process and manufacturing facilities.

Introduction to Hydraulic Systems


Topics:

  • Properties of Liquids
  • Hydraulic System Components
  • Hydraulic Schematic Symbols
  • Pressure and Flow
  • System Flow and Pressure
  • Hydraulic Power Transmission
  • Hydraulic System Efficiency
  • Hydraulic System Safety

Pressure Controls


Topics:

  • Introduction to Pressure Control Valves
  • Unloading and Counterbalance Valves
  • Sequence and Pressure Reducing Valves
  • Direct-Acting and Pilot-Operated Pressure Control Valves
  • External Control of Pilot-Operated Valves
  • Spool-Type Pressure Control Valves
  • Pressure Reducing Valve Operation

Directional Flow Controls


Topics:

  • Direction Control Valves
  • Centering Conditions
  • Actuating Directional Control Valves
  • Piloting and Draining
  • Packed Spool Valves
  • Flow Control Valve Designs
  • Flow Control Applications

Fluids, Filters, and Reservoirs


Topics:

  • Functions of Hydraulic Fluid
  • Characteristics of Hydraulic Fluid
  • Fluid Conditioning in the Reservoir
  • Draining and Replacing FluidM
  • Reducing External Contamination
  • Filters
  • Filter Maintenance

Hydraulic Pumps, Pumping Principles, and Accumulators


Topics:

  • Hydraulic Power
  • Hydraulic Pumps
  • Vane Pumps
  • Piston Pumps
  • Monitoring Pump Operation
  • Hydraulic Accumulators
  • Accumulator Maintenance
  • Precharging an Accumulator

Variable Volume Hydraulic Pumps


Topics:

  • Fixed Volume and Variable Volume Pumps
  • Horsepower Reduction
  • Variable Volume Vane Pumps
  • Variable Volume Piston Pumps
  • Volumetric Efficiency
  • Case Drain Flow
  • Electrical Checks
  • Reversible Pumps

Actuators


Topics:

  • Hydraulic Cylinders
  • Cylinder Regulation
  • Cylinder Repair
  • Hydraulic Motors
  • Motor Regulation
  • Motor Repair

Hydraulic System Troubleshooting


Topics:

  • Introduction to Troubleshooting
  • Using Schematic Diagrams
  • Flow-Related Problems
  • Cylinder Malfunction
  • Edgeguide Circuit Malfunction
  • Downender Malfunction
  • Traversing Circuit Malfunction
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Electrohydraulic Servo Systems


Topics:

  • Signal Transmission
  • Servo System Schematic Symbols
  • Spool Servo Valves
  • Jet Pipe Servo Valves
  • Flapper Servo Valves
  • Frequency Response Tests