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Center for Curriculum and Transfer Articulation
Mechanical Systems
Course: AIT110

First Term: 2019 Fall
 Lecture   3.0 Credit(s)   2.0 Period(s)   2.0 Load  
Subject Type: Occupational
Load Formula: T- Lab Load


Description: Overview of the area of basic mechanical systems of a manufacturing facility. Preparation to sit for the NIMS Duty Area 2: Basic Mechanical Systems Certification Exam.



MCCCD Official Course Competencies
1. Use measurement hand tools to inspect dimensions of shafts and other components. (I)
2. Install, align, tension, and adjust: a shaft coupling (using rim and face, feeler gauge, and laser methods); belt drive (e.g. single and multiple belt systems; using V-belts, timing and High Performance Timing (HPT) types); chain drive (e.g. single and multiple chain systems); gear drives (e.g. spur and right angle); pillow block; and flange block bearing. (II-IV)
3. Identify all lubrication points on a machine, select lubricant, and apply lubricant to machine according to maintenance schedule. (V)
4. Utilize effective mechanical fabrication procedures. (I-V)
5. Apply troubleshooting techniques for shaft couplings, chain drives and belt drives. (VI)
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. Measurement tools (i.e. inspect dimensions of shafts and components)
   A. Metric, decimal, inch fraction rules
   B. Conversions of measurements
      1. English units
      2. Metric units
   C. Calipers
      1. Digital
      2. Dial
   D. Micrometers
      1. Digital
      2. Vernier
   E. Resolution, repeatability, and accuracy
   F. Tool selection (based on accuracy and feature to be measured)
   G. Measurement concepts
      1. Check calibration of measurement tool using a master
      2. Dial indicator or digital indicator to measure:
         a. Total Indicated Run-out (TIR)
         b. Flatness
         c. Other features
         d. Indirect measurement
II. Installing/aligning shaft coupling (i.e. using rim and face, feeler gauge, and laser methods); installing/aligning/tensioning: belt drive (i.e. single, multiple belt systems; using V-belts, timing, and HTP types) and chain drive (i.e. single, multiple chain systems)
   A. How to mount a motor
   B. How to correct for a soft foot on a motor
   C. How to level motors and shaft
   D. Installing flexible, flange, grid, and chain couplings
   E. Couplings identification (given a specification)
   F. Manufacturer`s documentation to locate alignment specifications of a coupling
   G. Measuring shaft speed using a tachometer
   H. Shaft alignment
      1. Feeler gauge and straight edge
      2. Rim and face
      3. Dial indicators
      4. Laser aligning equipment
   I. Installation
      1. Multiple V-belt drive onto a shaft with a bushing
      2. Timing belt or High Torque Drive (HTD) belt onto a shaft using a bushing
      3. Split taper, QD, and taper lock bushings
   J. Identification of sheaves and V-belts specifications
   K. Identification of V-belt drive components (given a specification)
   L. Aligning V-belt drive using a straight edge
   M. Checking tension of a V-belt drive using a tension tool
   N. Tensioning V-belt drive by positioning the prime mover
   O. Interpreting specifications of sprockets and chains (given a specification)
   P. Installing chain drive using proper tools
   Q. Aligning chain drive using a straight edge
   R. Checking tension of a chain drive using a straight edge and rule
   S. Tensioning a chain drive by positioning the prime mover
III. Install, align, and adjust a spur gear drive and a right angle gear drive
   A. How gears are attached to shafts through keys and keyways
   B. Interpreting specifications of gears
   C. Identifying spur and right angle gear components (given a specification)
   D. Aligning gear drive using a straight edge
   E. How to check backlash of gears using a dial indicator per specifications
IV. Install, align, and adjust a pillow block and flange block bearing
   A. Interpreting specifications of pillow block and flange bearings
   B. Identifying pillow block bearings (given a specification)
   C. Install, align, and adjust pillow block and flange bearings
V. Lubrication points on a machine (i.e. select and apply lubricant to machine according to maintenance schedule)
   A. Importance of a lubrication plan
   B. How to identify all oil and grease lubrication points using the manual
   C. Identify/select correct lubricant given a specification from the manual.
   D. Procedure for safe handling and storage of lubricants
   E. Lubricate bearings using Zerk fittings
   F. Grease gun to lubricate a bearing
   G. How to fill an oil cup
   H. Inspecting/filling automatic lubricators
   I. What is lubrication oil
   J. What is lubricating grease; different grades/usage
   K. Purpose of vent plugs
   L. Purpose of additives and viscosity
   M. Effects of over and under lubrication of bearings
VI. Troubleshooting techniques for shaft couplings, chain drives and belt drives
   A. Identifying cause of wear or malfunction of a flexible coupling through visual inspection
   B. Perform troubleshooting techniques to analyze wear or malfunction
      1. V-belt drive
      2. Chain drive
      3. Gear drive
      4. Pillow block bearing
 
MCCCD Governing Board Approval Date: March 26, 2019

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.