Day 1
Hydraulic Theory and Principles
- hydraulic theory and physical principles
- Hydrostatics
- Hydrodynamics
- Hydraulic Fundamentals
- Liquid Characteristics
- Transmission of Hydraulic Force
- Pressure
- Head pressure
- Flow
- Friction
- Volume
- Capacity
- Velocity
- Flow Rate
- Heaters and Coolers
- Speed
- Mechanical Advantage
- Advantages and Disadvantages of Hydraulic Systems
- Design of a hydraulic system
- Comparison of the different energy transfer systems
Hydraulic Circuit Diagrams
- Definition and purpose of Hydraulic circuit diagram symbols
- Important Hydraulic circuit diagram symbols
- Hydraulic Pumps and Motors
- Directional Control Valves
- Methods of Actuation
- Pressure Valves
- Flow Control Valves
- Non-Return Valles
- Cylinders
- Transfer of Energy Symbols
- Measuring Devices
- Combination Devices
- Circuit Diagram Tables
- Function Diagrams
- Interpreting Diagrams
- SI units typically used in hydraulics
Hydraulic Theory and Physical Principles
- Principles of hydraulic systems
- Power transmission
- Pascal’s Law
- The hydraulic lever principle
- Applying these theories to a hydraulic cylinder
- Applications for Hydraulics
Hydraulic Fluid
- Introduction to Hydraulic Fluids
- Types of hydraulic Flow
- Calculation of Hydraulic pump and motor displacement
- Flow Rate
Day 2
Fluid Power Connectors and Filtration
- Fluid Power connectors and hose assemblies
- Different threads found in hydraulics
- Hydraulic filtration and cleanliness control
- The importance of good hydraulic filtration techniques
Control, Check, Pressure and Flow Valves
- Directional control valves
- Check valves
- The different types of hydraulic control systems and the effect on energy usage
Practice and Control of Hydraulic Systems
- Pressure control valves
- Pressure Relief Valves
- Pressure Reducing valve
- Sequence Valve
- Over-centre valves
- Flow control valves
- Slip in cartridge valves
- Manifold Block
- Cartridge Valves
- Cover Plates
- Pilot Valves
- Directional control valve
- Proportional Valves
- Directional Control Valves
- Proportional Valves
- Servo Valves
Day 3
Valves and Synchronization of Cylinders
- Operation of hydraulic gear pumps and other fixed displacement pumps
- Synchronization of Cylinders
- Accumulators
- Hydraulic circuit diagrams and application
- Discussion on maintenance and troubleshooting techniques
Safety in the Hydraulics Workshop
- Working with Hydraulic Oils
- Working with Hydraulic Systems
- Lighting and Ventilation
- Hydraulics Maintenance
- Don’t mix components from different manufacturers
- Risk Assessment
- Protective clothing
Day 4
The Laws and Principles of Hydraulics
- Overview of Hydraulic Principles, Maintenance & Application
- Pascal’s Law
- Computing Force, Pressure, and Area
- Bernoulli's Principle
- NASA Aircraft Example
- Advantages of Hydraulic Systems
Causes of Hydraulic Failures
- Common System Faults
- Wear in Hydraulics
- Hydraulic Leaks
- Preventive Maintenance of Hydraulic Systems
- Finding Root Causes
Physical basics of hydraulics and the design of simple hydraulic cylinder system
- Categories of actuators; including Rotary and Linear Actuators
- Hydraulic cylinders classifications; including Single and Double acting cylinders
- Pistons
- Cylinder mountings
Calculation of a hydraulic motor application
- Hydraulic motors
- Limited rotation hydraulic motor
- Hydraulic motor performance
- Mechanical efficiency
- Overall efficiency
- Electro-hydraulic stepping motors
- Pumps
- Hydraulic pumps
- Hydraulic pump types; including Gear, Rotary vane, Screw and Radial piston pumps
- Pumps for open and closed systems
- Multi pump assembly
- Hydraulic pumps, calculation formulas; including Flow, Power Mechanical and Hydraulic efficiency
Theory of Fluid, Pressure, Force & Air
- Characteristics of Fluids
- Movement of Fluid Under Pressure
- Mechanical Advantage
- Handling of Fluids
- Fluids used in Hydraulics
- Flow, Force, Pressure and Air
Theory of hydraulic filters and cleanliness control
- Filter; including Micron, Beta ratio and Filter location
- Filters and Contaminants
- Cleaning Maintenance practice
- Cleaning of parts; including Cleaning of seals, Oil seal installation, Inspecting castings and machined surfaces, Gaskets, seal rings and 0-rings
- Cleaning and Flushing for Hydraulic Systems
- Inspections:
- Daily and Monthly Checks
- Hydraulic Systems Inspection and Service
- Start up and Maintenance of Hydraulic System
- Maintenance and Watch keeping: Simple Maintenance Hints
Day 5
Thermal control of hydraulic systems
- Define and explain Heat Exchangers
- Heat dissipation heat exchangers:
- Air-cooled and Water Cooled
- Advantages & Disadvantages
Hydraulic components and Valves
- Pressure control valves; incl. Pressure Relief Valve, Simple Pressure Relief Valve and Compound Pressure Relief Valve
- Directional Control Valves; including Complex Valves, Poppet Valve, Sliding Spool Valve, Two-way and, Four Way Valves.
- Control Valve Repair
- Proportional valves; including Proportional Control Valve Circuits and Circuits with proportional throttle valves
- Typical conventional valve circuit with resistive load
- Cartridge valves; including slip-in cartridge valves
- How to Monitor A Hydraulic Machine’s ‘Vital Signs'
Hydraulic Accumulators, Circuits and Control Theory
- Accumulators – selection of and calculation of size;
- Including the following
- Weight-loaded-type, Spring-loaded-type, Gas-loaded-type, Non-separator type, Piston-type separator gas-loaded and Bladder-type separator gas-loaded accumulators
- Accumulator applications
- An auxiliary power source
- Leakage compensator
- Hydraulic shock absorber
Hydraulic control theory
- Pressure compensation and load sensing, closed loop and open loop
- Control valves
- Control components in a hydraulic system
- Centering washers
- Simple pressure relief valve
- Pressure-compensated flow control valves
- The Hydraulic Lever