Maricopa Community Colleges  MWR203   19952-20046 
Official Course Description: MCCCD Approval: 11/22/94
MWR203 19952-20046 LEC 5 Credit(s) 5 Period(s)
Speciality Machinery I
Fundamentals and theory of hydraulics and pneumatics. Types, components, construction, and assembly of pumps and compressors. Inner workings of industrial pumps and compressors. Auxiliary equipment and accessories. Prerequisites: Indentured apprentice status and MWR202 or permission of the Apprentice Coordinator.
Go to Competencies    Go to Outline
 
MCCCD Official Course Competencies:
 
MWR203   19952-20046 Speciality Machinery I
1. Identify and define the main fields of hydraulics and the associated physical laws. (I)
2. Calculate the specific weight and specific gravity for various liquids. (I)
3. Calculate the gauge pressure of various fluids at various heads. (I)
4. Draw and identify the two charging arrangements in pump applications. (II)
5. Illustrate the principles of flow and pressure and correlate these fundamentals to pump operation. (III)
6. Classify specific centrifugal pumps according to the five criteria of classification. (III)
7. Perform the disassembly, cleaning and inspection, and reassembly of specific centrifugal pumps. (III)
8. Demonstrate the installation and adjustment of mechanical seals. (III)
9. Identify and describe the components of a typical hydraulic unit. (IV)
10. Disassemble, clean, inspect, and reassemble a typical hydraulic cylinder. (IV)
11. Install and maintain component parts in a typical hydraulic cylinder. (IV)
12. Demonstrate correct methods to install packing and seals. (IV)
13. Fabricate a gasket for a typical pump head. (IV)
14. Layout and install a simple hydraulic system to include the hydraulic unit, actuator, valves, plumbing, etc. (IV)
15. Illustrate the operation of a typical compressor, indicate the effects of heat of compression, and correlate applicable physical laws. (V)
16. Identify specific methods of reducing the effects of heat of compression. (V)
17. Identify specific compressors by grouping, staging, classification and type. (V)
18. Identify and explain function of aftercoolers and intercoolers. (V)
19. Diagram the location of intercoolers and aftercoolers in the flow path of a compressor. (V)
Go to Description    Go to top of Competencies
 
MCCCD Official Course Outline:
 
MWR203   19952-20046 Speciality Machinery I
    I. Basic Theory of Hydraulics/Laws
        A. Study of Fluids
        B. Fields
          1. Hydrodynamics
          2. Hydrostatics
        C. Pressure of Fluids
          1. Pressure
          2. Factors Affecting
          3. Correlation of Fluids to Gases
          4. Calculations
        D. Fundamentals of Pump Operation
          1. Purpose
          2. Charging
          3. Calculations
          4. Principles of Flow
          5. Pressure - Velocity Relationship
          6. Principles of Pressure
      II. Introduction To Pumps
          A. Purpose
          B. Classifications - Charging
            1. Non-Positive Displacement
            2. Positive Displacement
            3. Drawing
        III. Centrifugal Pumps
            A. Definition
            B. Classifications
              1. Shaft Arrangement
              2. Impeller Design
              3. Casing Design
              4. Staging
              5. Flow
            C. Principles of Operation
              1. Velocity
              2. Pressure
              3. Applicable Law
            D. Components
              1. Casing or Housing
              2. Impeller
              3. Wearing Rings
              4. Seal Assembly
              5. Miscellaneous Components
            E. Pump Maintenance
              1. General Specifications
              2. Preparation & Casing Removal
              3. Disassembly & Cleaning
              4. Inspection
              5. Re- assembly
              6. Packing Replacement
              7. Trouble Shooting
              8. Mechanical Seals
          IV. Hydraulic Systems
              A. Unit Components
                1. Reservoir
                2. Prime Mover
                3. Hydraulic Pump
                4. Pressure Relief
                5. Directional Control
                6. Hydraulic Plumbing and Valves
                7. Hydraulic Cylinders and Motors - Maintenance/Installation
                8. Strainers
                9. Filters
                10. Layout and Installation
              B. Hydraulic Pumps
                1. Type
                2. Performance Groups
                3. Design Classifications
              C. Hydraulic Attachments
                1. Actuators - Layout and Installation
                2. Hydraulic Motors
              D. Miscellaneous
                1. Packing and Seals - Installation
                2. Gaskets
                3. Piping, Tubing and Hoses
                4. Pump Head Gaskets - Fabrication
            V. Compressors
                A. Function
                B. Principle of Operation
                  1. Comparison to Pumps of Similar Type and Design
                  2. Applicable Laws
                  3. Illustration
                  4. Heat of Compression - Methods
                C. Grouping
                  1. Positive Displacement
                  2. Dynamic
                D. Staging
                  1. Single
                  2. Compound
                E. Classifications
                  1. Reciprocating
                  2. Rotary
                  3. Centrifugal
                F. Type
                  1. Intercoolers
                  2. Aftercoolers
                  3. Diagram Location
            Go to Description    Go to top of Competencies    Go to top of Outline