Contents
Chapter 1
Hydraulic Safety 1
Introduction to Safety . . . 1
Personal Protective Equipment (PPE) . . . 1
Eye Protection. . . . . . . . . . . . . . . . . . . . . . . . 2
Clothing . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Hearing Protection . . . . . . . . . . . . . . . . . . . . . . 3
Hard Hats . . . . . . . . . . . . . . . . . . . . . . . . . 3
Foot Protection . . . . . . . . . . . . . . . . . . . . . . . 3
Emergency Preparedness . . . 4
Fire Suppression. . . . . . . . . . . . . . . . . . . . . . . 4
Safety Data Sheets (SDS) . . . . . . . . . . . . . . . . . . . 6
First Aid Kit and Eyewash Station . . . . . . . . . . . . . . . . 8
Fluid Hazards . . . 8
Fluid-Injection Injuries. . . . . . . . . . . . . . . . . . . . . 8
Burns . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Combustion. . . . . . . . . . . . . . . . . . . . . . . . . 11
Safe Practices for Working with Hydraulic Systems . . . 12
Before Starting a Job . . . . . . . . . . . . . . . . . . . . . 12
Avoid Heat near Hydraulic Components and Conductors . . . . . . . 13
Know the System . . . . . . . . . . . . . . . . . . . . . . 13
Hydraulic Environmental Management . . . 14
Reporting an Oil Spill to the Authorities . . . . . . . . . . . . . . 14
Fluid Containment . . . . . . . . . . . . . . . . . . . . . . 15
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Chapter 2
Hydraulic and Fluid Power Principles 19
Introduction to Fluid Power . . . 19
Advantages of Hydraulic Systems . . . . . . . . . . . . . . . . 19
Disadvantages of Hydraulic Systems . . . . . . . . . . . . . . . 22
Hydrodynamic versus Hydrostatic . . . . . . . . . . . . . . . . 23
Hydrostatic Fundamental Principles . . . 23
Pascal’s Law . . . . . . . . . . . . . . . . . . . . . . . . 23
Common Triangles . . . . . . . . . . . . . . . . . . . . . . 27
Hydrodynamic Fundamental Principles . . . 28
Continuity Equation. . . . . . . . . . . . . . . . . . . . . . 28
Bernoulli’s Theorem . . . . . . . . . . . . . . . . . . . . . 32
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