Maricopa Community Colleges  DIE117AA   19946-20086 
Official Course Description: MCCCD Approval: 07/22/08
DIE117AA 19946-20086 L+L 3 Credit(s) 5 Period(s)
Heavy Equipment Maintenance
Preventive maintenance practices, routine and non-routine maintenance, such as lubrication and adjustments to compensate for wear.
Prerequisites: None.
Cross-References: AUT117AA
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MCCCD Official Course Competencies:
 
DIE117AA   19946-20086 Heavy Equipment Maintenance
1. Describe and perform basic steps of engine maintenance. (I)
2. Describe and perform basic steps of power train maintenance. (II)
3. Describe and perform basic steps of brake maintenance. (III)
4. Describe and perform basic steps of chassis maintenance and axle alignment. (IV)
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MCCCD Official Course Outline:
 
DIE117AA   19946-20086 Heavy Equipment Maintenance
    I. Operational Checks on Engines
        A. Take compression tests and analyze results
        B. Determine reasons for removal of heads
        C. Disassemble and check pistons and cylinder liners
        D. Remove and anlyze connecting road and main bearings
      II. Operational Checks on Power Train
          A. Basic gearing and gear ratios
          B. Standard transmissions
            1. Checks for wear
            2. Lubrication
            3. Troubleshooting the transmission
          C. Rear axles
            1. Checks for wear
            2. Lubrication
            3. Troubleshooting rear axles
            4. Two speed rear axles
            5. Single reduction rear axles
            6. Double reduction rear axles
            7. Tandem drive rear axles
        III. Operational Checks on Chassis and Alignment
            A. Lubrication
            B. Alignment
              1. Turning radius
              2. Axle caster
              3. Wheel chamber
              4. Wheel toe-in
              5. King pin inclination
              6. Drive axle alignment
            C. Suspensions
              1. Leaf spring
              2. Torsion bar
              3. Air bag
              4. Equalizing beam
          IV. Operational Checks on Brakes
              A. "S" Cam brakes
                1. Anti-lock brakes
                2. Automatic slack adjusters
                3. Adjustments
              B. Wedge brakes
                1. Adjustment
              C. Disc brakes
                1. Adjustment
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