Basic Hydraulic Troubleshooting

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Description

Basic Hydraulic Troubleshooting is written for electricians, millwrights, supervisors, reliability technicians and anyone who is responsible for the hydraulic maintenance of plant machinery. This fully-illustrated color manual contains nearly 300 pages of troubleshooting and reliability procedures. It can also be used as reference as actual machine problems occur.

Most mechanics and electricians admit they don’t know much about hydraulics. The result? Expensive part replacements and often unsafe maintenance decisions. Break that cycle with Basic Hydraulic Troubleshooting.

Author:

GPM Hydraulic

Published:

2015

Format:

3-Ring Binder

Pages:

292

Table Of Contents:

  • Hydraulic Fundamentals
    • Hydraulic Advantages
    • Compressibility of Fluids
    • Pascal's Law
    • Conservation of Energy
    • Hydraulic Power
    • Pressure
    • Cylinder Force
    • Pressure Required to Move a Load
    • Volume
    • Cylinder Speed
    • Hydraulic Motor Speed
    • Hydraulic Pipe Size
    • Hydraulic Horsepower
    • Rule of Thumb
    • Heat and the Hydraulic System
    • Work Exercises
  • Hydraulic Pumps
    • Fixed Displacement Pumps
    • Gear Pumps
    • Vane Pumps
    • Relief Valves and Fixed Displacement Pumps
    • Checking the Relief Valve
    • The Vented Relief Valve & Fixed Displacement Pumps
    • Troubleshooting the Vented Relief Valve
    • Setting Relief Valve in Fixed Displacement Pump Circuit
    • Variable Displacement Pumps
    • Case Drain
    • Pressure Compensating Pumps
    • Vane Pumps
    • Piston Pumps
    • Compensating Pump Example Circuit
    • Pressure Compensating Pump Pressure Settings
    • Systems without Relief Valves
    • Systems with Relief Valves
    • Troubleshooting Hydraulic Pump Circuits
    • Visual Checks
    • Sound Checks
    • Cavitation
    • Aeration
    • Improper Installation
    • Troubleshooting Fixed Displacement Pump Circuits
    • Checking the Fixed Displacement Pump
    • Troubleshooting Variable Displacement Pumps
    • Volume Problem
    • Pressure Checks
  • Directional Valves and Pressure Control Valves
    • Directional Valves
    • Solenoid Operated Valves
    • Solenoid Failures
    • Checking the Solenoid
    • Two Way Directional Valves
    • Normally Open
    • Three Way Valves
    • Four Way Valves
    • Three Position Valves
    • Closed Center
    • Closed Center Valves and Cylinder Drift
    • Tandem Center
    • Open Center
    • Float Center
    • Solenoid Controlled, Hydraulic Piloted Valves
    • Tandem and Open Center Valves
    • Common Valve Actuators
    • Troubleshooting Directional Valves and Cylinders
    • Check Valves
    • Standard Check Valve
    • Example No. 1
    • Example No. 2
    • Spring Loaded Check Valves
    • Example No. 1
    • Example No. 2
    • Pilot Operated Check Valves
    • Pilot to Close
    • Check Valve Failures
    • Logic Valves
    • Example No. 1
    • Example No. 2
    • Directional and Check Valve Work Exercise
    • Pressure Controls
    • Normally Open Valves
    • Troubleshooting the Pressure Reducing Valve
    • Air Bleed Valve
    • Normally Closed Valves
    • Sequence Valve Example
    • Counterbalance Valve
  • Accumulators and Flow Controls
    • Accumulators
    • Dry Nitrogen
    • Charging the Accumulator with Nitrogen
    • Checking the Nitrogen Pre-charge Hydraulically
    • Piston Accumulator
    • Bladder Accumulator
    • Accumulators and Fixed Displacement Pumps
    • Accumulator Dump Valves
    • Accumulators for Shock
    • Accumulator Safety
    • Flow Controls
    • Fixed Orifice
    • Variable Orifice
    • Flow Controls and Fixed Displacement Pumps
    • Flow Control Locations
    • Pressure Compensating Flow Controls
    • Temperature & Pressure Compensating Flow Controls
    • Flow Controls and Pilot Operated Directional Valves
    • Flow Controls and Suspended Loads
    • Two Speed Lowering
    • Problems with Flow Controls
    • Accumulator and Flow Control Exercise
  • Hydraulic Motors
    • Single and Bi-directional Motors
    • Radial Piston Motors
    • Motors and Crossport Relief Valves
    • Crossport Adjustment Procedure
    • Brake Valve
    • Motor Speed Control
    • Internally Drained Motors
    • Externally Drained Motors
    • Motors in Series
    • Internally Drained Motors
    • Externally Drained Motors
    • Motors in Parallel
    • Flow Dividers and Parallel Motors
  • Servo and Proportional Valves and Hydrostatic Drives
    • Servo and Proportional Valves
    • Servo and Proportional Valves Description
    • Servo Valve Operation
    • Proportional Valve Operation
    • Linear Positioner
    • Valve Amplifier
    • Computer Control
    • Nulling the Servo Valve
    • Nulling the Proportional Valve
    • Servo and Proportional Valve Troubleshooting
    • Checking The Linear Positioner
    • Flushing Valves
  • Hydrostatic Drives
    • Main Pump
    • Charge Pump
    • Charge Pump Relief
    • Make Up Check Valves
    • Hydrostatic Pump Cutaway
    • Crossport Relief Valves
    • Hydraulic Motor
    • Pump Control
    • Shuttle Valve and Relief
    • Filtration
    • Checking the Hydrostatic Drive
  • Fluid Maintenance
    • Viscosity
    • Reservoir
    • Cooler Locations
    • Contamination
    • Sources of Contamination
    • Fluid Sampling
    • Filter Selection
    • Filter Placement
    • Maintaining Fluids and Filters.
    • Hydraulic Leakage Control

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