MCCCD Program Description

Electro-Mechanical Devices

Course: FAC186

First Term: 2018 Fall

Lec + Lab 3 Credit(s) 5 Period(s) 5 Load
Subject Type: Occupational
Load Formula: T Lab Load

Description: Concepts, principles, maintenance, and troubleshooting of mechanical and electro-mechanical devices. Mechanical alignment of shafts, pillow blocks, gears, and couplers on mechanical equipment. Bearings removal and installation. Installation and troubleshooting of pump seals. Vernier calipers, micrometers, tachometers. Use and operation of air flow hoods for air balancing. Belt drive systems and set up and operation of variable frequency drives. Cooling tower water treatment controls and chemical additives

MCCCD Official Course Competencies
1. Describe the characteristics of spur, bevel, helical, and herringbone gears. (I, III) 2. Use micrometers, vernier calipers and dial indicators to make mechanical measurements. (I) 3. Relate the principle of conservation of energy to the mechanical characteristics of gear and levers. (II) 4. Set up/align a mechanical equipment. (III) 5. Replace mechanical seals related to pump seal problems. (IV) 6. Replace pulleys and drives to achieve proper speed requirements. (V) 7. Use tachometers to measure RPM. (V) 8. Manage gear problems and failures. (VI, VII) 9. Use appropriate lubricants. (VI) 10. Manage bearing failures and problems. (VII) 11. Replace bearing on shaft. (VII) 12. Monitor filter specifications to maintain proper system operation. (VIII) 13. Program variable frequency drives. (IX) 14. Measure air flow from flow hood. (X)
MCCCD Official Course Competencies must be coordinated with the content outline so that each major point in the outline serves one or more competencies. MCCCD faculty retains authority in determining the pedagogical approach, methodology, content sequencing, and assessment metrics for student work. Please see individual course syllabi for additional information, including specific course requirements.

MCCCD Official Course Outline
I. Selection and Specification of Components A. Gears B. Belt drives C. Bearings D. Speed reducers E. Lubricants F. Filters G. Measuring tools 1. Vernier calipers 2. Micrometers II. Physical Laws of Gears and Levers A. Newton`s laws of motion B. Force action and reaction - linear motion C. Torque action and reaction - rotational motion D. Mechanical advantage concepts E. Angular velocity concepts F. Work and conservation of energy - gears and levers III. Gear Trains A. Alignment of shafts, pillow blocks, and bearings B. Gear spacing for backlash C. Measuring gear reduction D. Worm gear assembly E. Spur and bevel gear assembly F. Thrust requirements for helical gears IV. Pump Seals A. Stuffing box seals B. Mechanical - balanced and unbalanced C. Inside/Outside seals V. Motors Speed Control A. Operation of variable frequency drives B. Pulleys and belt selection C. Tahcomenters VI. Lubrication and Friction A. Principles of lubrication B. Types of friction C. Friction reduction techniques VII. Bearings A. Journal B. Ball C. Roller D. Taper E. Needle VIII. Filters A. Viscous impingement B. Electronic C. Carbon D. Hepa IX. Variable Frequency Drives A. Programming B. Operation of drives X. Air Flow Hoods A. Use B. Operation

MCCCD Governing Board Approval Date: 6/22/2004

All information published is subject to change without notice. Every effort has been made to ensure the accuracy of information presented, but based on the dynamic nature of the curricular process, course and program information is subject to change in order to reflect the most current information available.