Standard |
AMF 108 Applied Hydraulics,
Pneumatics, and Mechanisms
Emphasizes mechanical techniques for maintaining, troubleshooting, installing, and repairing drives, conveyor systems, and valves. Topics include: gas laws; pressure and force calculations; hydraulic systems vs pneumatic systems; cylinders, pressure controls, and system controls; hydraulic and pneumatic symbology; hydraulic and pneumatic system layout; interfacing hydraulic or pneumatic systems with other systems; applied mechanisms; belt, chain, and gear drives; drive train components; valves; and conveyor systems.
|
Competency Areas |
Hours
|
|
|
|
Gas Laws |
Class |
2 |
|
|
Pressure and Force Calculations |
D. Lab |
0 |
|
|
Hydraulic Systems vs Pneumatic Systems |
P. Lab/O.B.I. |
3 |
|
|
Cylinders, Pressure Controls, and System Controls |
Credit |
3 |
|
|
Hydraulic and Pneumatic Symbology |
|
|
|
|
Hydraulic and Pneumatic System Layout |
|
|
|
|
Interfacing Hydraulic or Pneumatic Systems with other Systems |
|
|
|
|
Applied Mechanisms |
|
|
|
|
Belt, Chain, and Gear Drives |
|
|
|
|
Drive Train Components |
|
|
|
|
Valves |
|
|
|
|
Conveyor Systems |
|
|
|
|
|
|
|
|
|
Prerequisite: |
PSC 150 (diploma), or PHY 191 (degree) |
||
|
Corequisite: |
|
||
Course Guide |
|
Competency |
After completing this
section, the student will: |
Hours |
||
|
Class |
D.Lab |
P.Lab/ O.B.I. |
||
|
GAS LAWS |
1 |
0 |
0 |
|
|
Laws |
State Pascal’s Boyles’, and Charles’ laws. |
|
|
|
|
PRESSURE AND FORCE CALCULATIONS |
2 |
0 |
0 |
|
|
Definitions |
|
|
|
|
|
Related agencies and standards |
Qualitatively and quantitatively discuss standards and units developed by the following agencies or groups: United States Customary System, International System, National Fluid Power Association, Joint Industrial Conference, American National Standards Institute, and Society of Automotive Engineers. |
|
|
|
|
Calculations |
Calculate PAV (pressure, area, volume), work power, horsepower, RPM, hydraulic work, and transmission of forces. |
|
|
|
|
HYDRAULIC SYSTEMS VS PNEUMATIC SYSTEMS |
2 |
0 |
0 |
|
|
Comparison |
Discuss, compare, and contrast pumps, control devices, actuating units, hydraulic fluids, piping, tubing, and reservoirs. |
|
|
|
|
Discuss performance, maintenance, and service life. |
|
|
|
|
|
Describe the characteristics of petroleum oils, synthetic fluids, and water. |
|
|
|
|
|
List applications of each. |
|
|
|
|
|
Discuss the transmission of power. |
|
|
|
|
|
Discuss lubrication properties. |
|
|
|
|
|
Discuss ability of selected fluids to act as sealants. |
|
|
|
|
|
Discuss the following service properties: viscosity, viscosity index, demulsibility, oxidation stability, lubricity, rust and corrosion, and preventive. |
|
|
|
|
|
List advantages and disadvantages of hydraulic systems. |
|
|
|
|
|
List advantages and disadvantages of pneumatic systems. |
|
|
|
|
|
Discuss air cleaning |
|
|
|
|
|
Discuss air drying. |
|
|
|
|
|
Discuss air regulation. |
|
|
|
|
|
Discuss the cost of compressed air. |
|
|
|
|
|
CYLINDERS, PRESSURE CONTROLS, AND SYSTEM CONTROLS |
3 |
0 |
10 |
|
|
Describe the theory and operation of rotating cylinders. List the basic elements of rotating cylinders. |
|
|
|
|
|
Discuss cylinder tube, piston, piston rod, cover, and packing. |
|
|
|
|
|
Discuss single-acting, double-acting, and cushioned/noncushioned classifications. |
|
|
|
|
|
List advantages and disadvantages of ring type pistons |
|
|
|
|
|
Discuss 1st class lever, 2nd class lever, 3rd class lever, toggle, straight line thrust increase, straight line motion multiplied, straight line motion in two directions, straight push, horizontal parallel motion, practically continuous rotary motion engine bearing, fast rotary motion using steep screw nut, four positive positions with two cylinders, trammel plate, and motion transferred to a distant point. |
|
|
|
|
|
Discuss direct acting, direct operated pilot type, and remote actuated pilot type relief valves. |
|
|
|
|
|
Explain pressure reducing valve operation. |
|
|
|
|
|
Explain sequence valve operation. |
|
|
|
|
|
Explain unloading valve operation. |
|
|
|
|
|
Explain poppet valves, spool valves, electro-mechanical valves, flow control, and miscellaneous air control devices operation. |
|
|
|
|
|
Explain open center valves, closed center valves, EH valves, proportional valves, hydraulic fuses, and miscellaneous hydraulic control devices operation. |
|
|
|
|
|
HYDRAULIC AND PNEUMATIC SYMBOLOGY |
1 |
0 |
2 |
|
|
Read hydraulic and pneumatic schematic diagrams. |
|
|
|
|
|
Recognize pumps, motors (air and
hydraulic), directional control valves, control valve actuators, cylinders,
and miscellaneous symbols. |
|
|
|
|
|
HYDRAULIC AND PNEUMATIC SYSTEM LAYOUT |
1 |
0 |
0 |
|
|
Explain Torricellis= flow equation. |
|
|
|
|
|
Minimize length Secure fastening of hydraulic lines.of hydraulic lines/bends. |
|
|
|
|
|
Decontaminate fluids. |
|
|
|
|
|
Develop a plan of leak prevention. |
|
|
|
|
|
List criteria for selection of pipe/tubing in the following applications: low pressure, medium pressure, high pressure, and extra high pressure. |
|
|
|
|
|
Construct a stationary installation. |
|
|
|
|
|
Construct a relative motion installation. |
|
|
|
|
|
INTERFACING HYDRAULIC OR PNEUMATIC SYSTEMS WITHOTHER SYSTEMS |
1 |
0 |
3 |
|
|
Construct a hydraulic or pneumatic system and interface with an electrical control system. |
|
|
|
|
|
APPLIED MECHANISMS |
1 |
0 |
0 |
|
|
List types of mechanical systems. |
|
|
|
|
|
Discuss the role of the technician in troubleshooting, repairing, and installing mechanical systems. |
|
|
|
|
|
BELT, CHAIN, AND GEAR DRIVES |
3 |
0 |
7 |
|
|
State the purpose of mechanical drives. |
|
|
|
|
|
Measure and calculate length of flat belt drives. |
|
|
|
|
|
Discuss the positive drive belt. |
|
|
|
|
|
Calculate belt speed. |
|
|
|
|
|
Splice flat belts. Troubleshoot flat belts. |
|
|
|
|
|
Discuss design variations of V-belt drives. |
|
|
|
|
|
Determine V-belt sizes and matching numbers. |
|
|
|
|
|
Calculate pulley size. |
|
|
|
|
|
Discuss V-belt drive selection. |
|
|
|
|
|
Discuss sheave alignment in V-belt drives. |
|
|
|
|
|
Install V-belt. |
|
|||