Course Description

This three-day course is designed for electricians, millwrights, supervisors, reliability technicians and anyone who is responsible for the hydraulic maintenance of your plant machinery. Maintenance personnel look at hydraulics differently than engineers, salespeople or manufacturers. This course is designed to include the five things a hydraulic troubleshooter needs to know:

  • The function of all of the system components
  • How to read and use the hydraulic schematic as a troubleshooting tool
  • How to troubleshoot individual components, preferably without removing them from the machine
  • How to properly adjust the system for maximum speed and efficiency
  • The correct reliability checks to ensure machine longevity and uptime

What You’ll Learn

  • The three tests to determine if a pump is bad before it is changed – in just 15 minutes.
  • The very first thing you should do when a hydraulic problem occurs.
  • Our four-step pressure setting procedure. This procedure is designed exclusively to reduce heat, shock and leakage in the system.
  • You learn how to be certain that when a valve is replaced, the spool, the pilot and drain lines are exactly the same as the original
  • Five causes of aeration and how to identify it   read more…

  • How to troubleshoot and adjust servo and proportional valves without contaminating the machine.
  • Three problems that cause cavitation in pumps.
  • The four ways contamination enters the system and how to control it – PLUS how to maintain the filters for extended component life and reduced machine wear.
  • How to safely and effectively repair and pre-charge an accumulator for maximum speed and shock absorption.
  • The six main causes of solenoid failure.
  • How to troubleshoot the pressure reducing valve.
  • Two quick checks to verify an accumulator is operating properly.
  • How to test directional valves for bypassing.
  • Four-step safety procedure that MUST be followed before charging, discharging and removing an accumulator prior to working on the machine.
  • The 10 most common causes of leaks and how to get rid of them once and for all.
  • The right and wrong methods for increasing the speed of the machine.
  • The three factors that determine the flow through a flow control and how they affect the speed of the cylinder or motor.
  • How to verify that a cylinder or motor is bad BEFORE it is changed.
  • Four critical visual checks to make when initiating a hydraulic problem.
  • Step-by-step instructions for troubleshooting fixed and variable displacement pumps.
  • How to test a cylinder for excessive leakage.
  • The best method for diagnosing check valve failures.

Apply What You Learn and Reap the Benefits

  • Hydraulic Fundamentals must be understood to troubleshoot hydraulics. One of the biggest problems in plants today is that the pressure is turned up to increase speed. If system pressures are not properly set, the result can be excessive shock, leaks and heat.
  • Hydraulic Pumps are usually the first components changed when a hydraulic problem occurs. The pump should never be changed before making the quick tests taught in this section. A step-by-step procedure is explained for setting the pump compensator and the system relief valve.  read more…

  • Accumulators are the most dangerous hydraulic devices in the system. The proper method of bleeding the nitrogen and hydraulic pressure out of the accumulator before removing from the system is covered. The correct procedures for pre-charging and troubleshooting accumulators are explained in detail.
  • Pressure Controls many times look similar but perform different functions in the system. This portion of the course covers the function, setting and troubleshooting of all normally open and closed pressure controls.
  • Directional Valves port the oil flow to cylinders and hydraulic motors as well as unload pumps and drain accumulators. You will learn the six main causes of solenoid failure. The symbols and use of two- three- and four-way valves are described.
  • Fluid Maintenance is often neglected or only receives attention when problems in the system occur. Best-practice oil sampling and filter maintenance methods are explained. Reservoir maintenance standards for breathers, heaters, high- temperature switches, level switches, etc. are specified.
  • Hydrostatic Drives are commonly used on knucklebooms, cranes, planers, chemi-washers, centrifuges and conveyor drives. These drives are controlled both manually and with servo or proportional valves. The electrical amplifier and hydraulic adjustments for these drives are covered in this training.
  • Proportional Valves, Servo Valves and Linear Positioners are expensive and are in many cases changed without making any tests. You will learn the proper procedure for installing, adjusting and troubleshooting these components.

Call Us for More Information

  • Call 800-597-5460 or 918-749-1400 Ext.263 for a Noria Training Consultant