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Standard |
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R State Standard £ Institutionally Developed College: n/a |
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DET 123 - Preventative Maintenance I |
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Course Description Introduces preventative maintenance procedures
pertaining to medium/heavyduty trucks and heavy equipment. Topics
include: engine systems, and cab & hood areas. |
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Competency Areas |
Hours |
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Engine Systems |
Class |
1 |
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Cab and Hood Areas |
D. Lab |
2 |
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P. Lab/O.B.I. |
6 |
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Credit |
4 |
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Prerequisite: |
DET 121 |
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Corequisite: |
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Course
Guide |
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Competency |
After
completing this section, the student will be able to: |
Hours |
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Class |
D.Lab
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P.Lab/ O.B.I. |
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ENGINE SYSTEMS |
5 |
10
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30 |
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Engine |
Check engine operation; record idle and governed rpm |
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Inspect vibration damper |
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Check engine oil level; check engine for oil, coolant, and
fuel leaks (engine off) |
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Inspect engine mounts for looseness and deterioration |
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Check engine for oil, coolant, air, and fuel leaks (engine
running) |
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Check electrical wiring, routing, and hold-down clamps |
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Fuel System |
Check fuel tanks, mountings, lines, and caps |
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Inspect throttle linkages and return springs |
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Replace fuel filter(s); prime and bleed fuel system |
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Air Induction and Exhaust System |
Check exhaust system mountings for looseness and damage |
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Check engine exhaust system for leaks, restrictions, and
damage |
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Check air induction system: piping, charge air
cooler, hoses, clamps, and mountings; check for air restrictions and leaks |
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Inspect turbocharger for leaks; check mountings and
connections |
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Inspect engine/exhaust brake |
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Cooling System |
Check operation of fan clutch |
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Inspect radiator and mountings |
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Inspect fan assembly and shroud |
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Pressure test cooling system and radiator cap |
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Inspect coolant hoses and clamps |
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Inspect coolant recovery system |
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Check coolant for contamination; determine coolant
conditioner (additive package) concentration and protection level (freeze
point) |
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Service coolant filter/conditioner |
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Lubrication System |
Change engine oil and filters; visually check oil for
coolant or fuel contamination |
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Take an engine oil sample |
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Gasoline Engine Emission Control Systems |
Inspect positive crankcase ventilation (PCV) valve and
system components |
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Inspect emission control systems to include exhaust gas
recirculation (EGR), secondary air injection (AIR), air inlet temperature
control, early fuel evaporation (EFE), and fuel evaporation systems |
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CAB AND HOOD
AREAS |
5 |
10
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30 |
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Inspect key condition and operation of ignition switch |
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Check warning lamps and/or alarms |
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Check instruments; record oil pressure and voltage |
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Check hand throttle, power take off (PTO), and manual
engine shut down operation |
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Check air conditioning (A/C), heater, and defroster
operation |
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Check operation of all accessories |
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Check operation of electric air horns and back-up warning devices |
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Check condition and documentation of safety flares, spare
fuses, triangles, fire extinguisher and all required decals |
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Inspect seat belts and sleeper restraints |
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Inspect wiper blades and arms |
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Hardware |
Check wiper and washer operation |
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Inspect windshield glass for cracks or discoloration;
check sun visor |
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Check seat condition, operation, and mounting |
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Check door glass and window operation |
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Inspect steps and grab handles |
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Inspect mirror mountings, brackets, and glass |
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Record all observed physical damage |
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Lubricate all grease fittings |
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Inspect and lubricate door and hood hinges, latches,
strikers, and linkages, and cables |
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Inspect tilt cab mountings, hinges, latches, linkages and
cables, and ride height |
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Inspect tilt cab hydraulic cylinders for leakage |
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Heating, Ventilation, and Air Conditioning (HVAC) |
Inspect A/C condenser and lines for condition and visible
leaks; check mountings |
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Inspect A/C compressor and lines for condition and visible
leaks; check mountings |
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Suggested
Resources |
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Media |
Note: Please adhere to the APA Formatting and
Style Guidelines. Duncan, G.J., & Brooks-Gunn, J.
(Eds.). (1997). Consequences of growing
up poor. New York: Russell Sage Foundation. |
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Web Manuals |
Mitchell
Information Systems. (2008). “Tractor Trailer.net”. |
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Print |
Multistate Academic
and Vocational Curriculum Consortium. (2007). “Diesel
Technology Series”. |
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Norman,
Andrew & others. (2006). Diesel Technology. |
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Norman, A. / Corinchock, J. / Bennett,S. ( 2005) Heavy Duty Truck
Systems 4th Ed, Delmar Pub. |
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Huzij/
Bennett. (2009). Heavy Equipment
Systems. Florence, KY: Delmar Cengage Learning, ISBN 13: 9781418009502 |
Posted: 10/09/08