HYDRAULICS CONTROL CIRCUIT MAINTENANCE AND TROUBLESHOOTING

Content

 Hydraulic Principles

• Pressure and force
• Advantages and disadvantages
• Physical properties of liquids
• Measurement and scales
• Pascal’s Law
• Horsepower and torque

Hydraulic Pumps

• Positive-displacement of pumps
• Increasing/decreasing volume
• Gear/van piston/screw pumps
• Troubleshooting cavitation, entrained air, effects of varnish and sludge

Flow, Pressure and Directional Control Valves

• Flow controls, actuator speed, and orifices
• Hydraulic circuit/placement
• Relief/sequence/counterbalance valves
• Pressure-reducing valves
• 3-position directional valve symbols
• Solenoids-controlled, pilot-operated valves
• Measuring surge pressure

Hydraulic Cylinders

• Single and double acting cylinders
• Seals
• Cylinder types and construction
• Flow required by cylinders
• Regenerative circuit
• Troubleshooting cylinders

Hydraulic Motors

• Speed and torque
• Types and sizing of hydraulic motors
• Hydraulic motors in circuits
• Hydrostatic transmission
• Applications of rotary actuators

Troubleshooting Guide

• Test set up and procedures
• Fixed displacement motor
• Variable displacement pump

Cylinder & Circuit Problems

• Erratic or jerk motion
• Blown rod seals, cylinders, or plumbing
• Cylinder drift

For Whom: Environmental health & safety personnel, Apprentice and experienced HVAC technicians, Owners & managers, Maintenance Technicians, HVAC maintenance and Repair Technicians, Energy management personnel, Plant & facility maintenance technicians, Building engineers, Building managers & superintendents, Plant & facility managers, Stationary engineers, Safety directors, Multi-craft personnel and Anyone who needs cross-training on Fluid Power & Hydraulic Systems

DATE:                3rd – 5th July, 2024

                             11th – 13th December, 2024