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Contact: Gary Carwell


Troubleshooting Industrial Hydraulic Equipment

You will Learn How To:

    Read hydraulic schematics

    Identify and understand common hydraulic components

    Demonstrate an understanding of common circuit applications

    Troubleshoot hydraulic power circuits

    Perform preventive maintenance

    Remove, clean, and replace hydraulic power components

This course can be tailored to address specific plant needs, if customer wants liquid or Pneumatic trainers used.

Course Outline

I. Introduction to Fluid Power

    Hydraulic Safety

    Color Code for Hydraulic Piping and Tubing

    Troubleshooting Technique

    Introduction to Fluid Power



    Pascal's Law

II. Symbols

    Hydraulic Agencies

    Hydraulic Symbols

III. Intro to the Hydraulic (Liquid) Trainer

    Graphic Symbol Schematic of Trainer


IV. Control Valves

    Directional Valves

    Directional Control Valves

    Motor Circuits

    Solenoid Controlled Directional Control Valves



    Pilot Operated Directional Control Valves

    Directional Control Valve - Solenoid Controlled

Who Should Attend:

Those involved in troubleshooting industrial hydraulic equipment. This could include millwrights, plumbers, pipefitters, mechanics, machinery maintenance mechanics, and electromechanical repair technicians.

Course Specifics: Prerequisites: None

Length: 40 Hours

Format: Hands-on workshop. One lab station for every two participants.

Class Size: Up to 12

CEUs Awarded: 3.5

Control Valves (continued)

    Remote Pilot Control

    Detent Valve, Pilot Control

    Check Valves

    LAB: Piloting

    Pilot Operated Check Valve

    Quick Check: Directional Control Valves

V. Pressure Controls

    Pressure Valves

    Spool Type Pressure Control Valves

    Pilot Operated Relief Valve

    Two-Stage, Compound Relief Valve

    Pilot Operated Relief Valve

    Using a Spool Type Pressure Control Valve to Sequence Machine Operations


    Sequencing Machine Operations


    LAB: Machine Sequence

    Counter-Balance Valve

    LAB: Counter-Balance

    Unloading Valve

    Two Pump Power Supply

    Pressure Reducing Valve

    LAB: Pressure Reducing

    Pressure Control Valves

    Relief Valve

    Multi-Pressure Circuits

    LAB: Multi-Pressures

    LAB: 1

VI. Flow Controls

    Flow Control Valves

    Pressure Compensated Flow Control Valve

    Flow Diverter Valve

    LAB: Pressure Drop

    LAB: Meter-In Flow Control

    LAB: Meter-Out Flow Control

    LAB: Bleed-Off

    LAB: Bleed-Off Flow Control

VII. Cartridge Valves

    Cartridge Valves

VIII. Actuators

    Linear Actuators / Cylinders

    Double Acting

    Cylinder Cushions


    Regenerative Circuits

    Synchronizing Parallel Cylinders

    Valves in Parallel

    LAB: Cylinders in Parallel

    Valves in Series

    LAB: Cylinders in Series

    Rotary Actuator Motors

    Rotary Actuators / Oscillating Motors

    Rotary Actuators

    LAB: Motor Circuit


IX. Pumps

    Theory Page on Pumping

    Non-Positive Displacement

    Fixed Displacement Pumps

    Variable Volume Pumps

    Variable Displacement

    Variable Volume Pumps

    Positive Displacement, Variable Displacement

    Variable Volume Pumps

    Intensifier (Pressure Booster)

X. Troubleshooting Hydraulic Equipment

    Hydraulic Flow Dividers

XI. Air / Oil Circuits (Air Over Oil)

    Air/Oil Circuits (Air Over Oil)

    Air/Oil Circuit With Meter-Out Flow Control


XII. Accumulators


    Gas Charged Accumulators

    Accumulators with Unloading Valve



XIII. Hydraulic Fluids, Seals, and Filters

    Hydraulic Fluids, Seals, and Filters

    Fluid Storage

    Oil Analysis

    Reservoir (Tank)


    Lip Seals

    Squeeze Seals

    Exclusion Seals and Devices

    Seal Compatibility


    Types of Filtration

    Mechanical Filters

XIV. Miscellaneous Circuitry


    No Sparkin', Slo-Speed, Rotary Table

    Hi-Lo Speed, Series - Parallel Drive

    Hi-Lo Speed Press

    Hi Speed, Lo Speed, Automatic Return

    Two Speed Press

    Component Quiz

We are so confident that you will benefit from Learn Maintenance training, that we offer you an unconditional guarantee of satisfaction. If for any reason you are dissatisfied with the training, and if there is nothing that we can do to remedy the problem to your satisfaction, you will owe us nothing. No questions asked!

Contact: Gary Carwell


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