Lesson 1. Hydraulic Reservoirs, Filters, Pumps, Accumulators, and Motors
Introduction - AL09260007
Figure 1-1. Typical Hydraulic Reservoirs.
Figure 1-2. Hydraulic Reservoir Pressurized With Hydraulic Fluid.
Figure 1-3. Typical Line Filter Assembly.
Figure 1-4. Double-Action Hand Pump.
Figure 1-5. Pump Drive Coupling.
Angular Piston Pump Construction
Figure 1-6. Typical Angular Piston Pump.
Figure 1-7. Typical Rotating-Cam Piston Pump.
Figure 1-8. Variable-Delivery Demand-Principle Cam Pump.
Hydraulic Accumulators
Figure 1-9. Variable Stroke-Reduction Pump.
Figure 1-10. Diaphragm Accumulator.
Figure 1-11. Bladder Accumulator.
Figure 1-12. Piston Accumulator.
Figure 1-13. Typical Hydraulic Motor.
Lesson 1 Practice Exercise - AL09260024
Lesson 1 Practice Exercise (Cont) - AL09260026
Answer Key and Feedback - AL09260027
Answer Key and Feedback (Cont) - AL09260028
Lesson 2. Basic Constructions and Operation of Hydraulic Actuating Devices, Flow Control, and Directional Devices
Actuating Cylinders
Figure 2-1. Single-Action Actuating Cylinder.
Closed-Center Selector Valve
Figure 2-3. Typical Rotor Closed-Center Selector Valve.
Figure 2-4. Typical Spool Closed-Center Selector Valve.
Figure 2-5. Typical Open-Center Rotor Selector Valve.
Figure 2-6. Typical Open-Center Spool Selector Valve.
Figure 2-7. Basic Open-Center Hydraulic System.
Figure 2-8. Basic Closed-Center System.
Hydraulic Servo
Figure 2-10. Simplified Irreversible Valve.
Figure 2-11. Typical Application of Ratchet Valve.
Check Valves
Figure 2-12. Simple In-Line Check Valve.
Figure 2-14. Mechanically Actuated Sequence Valve.
Figure 2-15. Typical Priority Valve.
Summary - AL09260047
Lesson 2 Practice Exercise - AL09260048
Lesson 2 Practice Exercise (Cont) - AL09260050
Answer Key and Feedback - AL09260051
Answer Key and Feedback (Cont) - AL09260052
Lesson 3. Hydraulic Pressure-Limiting, Controlling, and Sensing Devices
Pressure Relief Valves
Figure 3-1. Pressure Relief Valve.
Figure 3-2. Pressure Reducer.
Figure 3-3. Piston Pressure Switch.
Summary - AL09260059
Lesson 2 Practice Exercise - AL09260060
Lesson 3 Practice Exercise - AL09260062
Answer Key and Feedback - AL09260063
Answer Key and Feedback (Cont) - AL09260064
Appendix - Glossary
Appendix - Glossary (Cont) - AL09260066
Appendix - Glossary (Cont) - AL09260067
Basic Hydraulic Systems and Components
Introduction - AL09260007
Figure 1-1. Typical Hydraulic Reservoirs.
Figure 1-2. Hydraulic Reservoir Pressurized With Hydraulic Fluid.
Figure 1-3. Typical Line Filter Assembly.
Figure 1-4. Double-Action Hand Pump.
Figure 1-5. Pump Drive Coupling.
Angular Piston Pump Construction
Figure 1-6. Typical Angular Piston Pump.
Figure 1-7. Typical Rotating-Cam Piston Pump.
Figure 1-8. Variable-Delivery Demand-Principle Cam Pump.
Hydraulic Accumulators
Figure 1-9. Variable Stroke-Reduction Pump.
Figure 1-10. Diaphragm Accumulator.
Figure 1-11. Bladder Accumulator.
Figure 1-12. Piston Accumulator.
Figure 1-13. Typical Hydraulic Motor.
Lesson 1 Practice Exercise - AL09260024
Lesson 1 Practice Exercise (Cont) - AL09260026
Answer Key and Feedback - AL09260027
Answer Key and Feedback (Cont) - AL09260028
Lesson 2. Basic Constructions and Operation of Hydraulic Actuating Devices, Flow Control, and Directional Devices
Actuating Cylinders
Figure 2-1. Single-Action Actuating Cylinder.
Closed-Center Selector Valve
Figure 2-3. Typical Rotor Closed-Center Selector Valve.
Figure 2-4. Typical Spool Closed-Center Selector Valve.
Figure 2-5. Typical Open-Center Rotor Selector Valve.
Figure 2-6. Typical Open-Center Spool Selector Valve.
Figure 2-7. Basic Open-Center Hydraulic System.
Figure 2-8. Basic Closed-Center System.
Hydraulic Servo
Figure 2-10. Simplified Irreversible Valve.
Figure 2-11. Typical Application of Ratchet Valve.
Check Valves
Figure 2-12. Simple In-Line Check Valve.
Figure 2-14. Mechanically Actuated Sequence Valve.
Figure 2-15. Typical Priority Valve.
Summary - AL09260047
Lesson 2 Practice Exercise - AL09260048
Lesson 2 Practice Exercise (Cont) - AL09260050
Answer Key and Feedback - AL09260051
Answer Key and Feedback (Cont) - AL09260052
Lesson 3. Hydraulic Pressure-Limiting, Controlling, and Sensing Devices
Pressure Relief Valves
Figure 3-1. Pressure Relief Valve.
Figure 3-2. Pressure Reducer.
Figure 3-3. Piston Pressure Switch.
Summary - AL09260059
Lesson 2 Practice Exercise - AL09260060
Lesson 3 Practice Exercise - AL09260062
Answer Key and Feedback - AL09260063
Answer Key and Feedback (Cont) - AL09260064
Appendix - Glossary
Appendix - Glossary (Cont) - AL09260066
Appendix - Glossary (Cont) - AL09260067
Basic Hydraulic Systems and Components
