Standard |
APS 101 - Laundry Appliances I
Provides knowledge and skills in diagnosis and repair of major household laundry appliances. Emphasis is placed on servicing gas dryers and electric dryers. Topics include: component application and identification, diagnosis and repair of malfunctioning electrical, electronic and mechanical components, wiring diagram interpretation, and dryer installation.
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Competency Areas |
Hours
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Component Application and Identification |
Class |
3 |
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Diagnosis and Repair of Malfunctioning Electrical, Electronic and Mechanical Components |
D. Lab |
2 |
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Wiring Diagram Interpretation |
P. Lab/O.B.I. |
3 |
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Dryer Installation |
Credit |
5 |
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Prerequisite/ Corequisite: |
IFC 102 |
Course Guide |
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Competency |
After completing this
section, the student will: |
Hours |
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Class |
D.Lab |
P.Lab/ O.B.I. |
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COMPONENT APPLICATION AND
IDENTIFICATION |
10 |
0 |
8 |
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Belt drives |
Identify laundry appliance drive belts by type and size. |
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Describe the function of laundry appliance drive belts. |
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Drum assemblies |
Identify laundry appliance drums, drum rollers, and support bearings. |
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Describe the function of laundry appliance drums, drum rollers, and support bearings. |
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Electric dryer components |
Identify laundry appliance blower assemblies, cables, heating elements, temperature controls, and motors. |
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Describe the function of laundry appliance blower assemblies, cables, heating elements, temperature controls, and motors. |
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Gas dryer components |
Identify laundry appliance burner assemblies, ignition systems, and regulators. |
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Describe the function of laundry appliance burner assemblies, ignition systems, and regulators. |
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DIAGNOSIS AND REPAIR OF MALFUNCTIONING ELECTRICAL AND
MECHANICAL COMPONENTS |
6 |
2 |
30 |
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Belt drives |
Tighten laundry appliance drive belts. |
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Replace laundry appliance drive belts. |
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Determine the serviceability of laundry appliance pulley and idler assemblies. |
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Lubricate laundry appliance pulley shafts and bearings. |
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Lubricate laundry appliance idler shafts and bearings. |
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Replace laundry appliance pulleys, idlers, sheaves, and bearings. |
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Drum assemblies |
Determine the serviceability of laundry appliance drum, support bearings, and rollers. |
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Replace laundry appliance drums. |
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Lubricate laundry appliance support bearings. |
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Replace laundry appliance support bearings. |
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Lubricate laundry appliance drum rollers. |
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Replace laundry appliance drum rollers. |
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Electrical components |
Identify laundry appliance blower assemblies, heating elements, motors, and circuitry components. |
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Describe the function of laundry appliance blower assemblies, heating elements, motors, and circuitry components. |
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Isolate defective laundry appliance components using manufacturers' service manual troubleshooting procedures. |
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Repair or replace laundry appliance blower assemblies, electrical heating elements, motors electrical wiring cables. |
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Gas components |
Identify hazards associated with laundry appliance gas and exhaust gas leaks. |
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Identify laundry appliance gas dryer ignition systems, burner assemblies, and regulators. |
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Describe the function of laundry appliance gas regulators. |
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Test laundry appliance gas burners, ignition systems, and regulators for serviceability. |
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Test laundry appliance gas line couplings for leaks using both electronic devices and soapy water. |
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Service gas ignition systems, gas burner assemblies, gas regulators. |
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WIRING DIAGRAM INTERPRETATION |
10 |
0 |
8 |
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Wiring and pictorial diagrams |
Identify diagram symbols for components of gas and electric dryers. |
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Interpret dryer schematic wiring diagrams. |
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Interpret dryer pictorial diagrams. |
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Timer sequence charts |
Interpret dryer timer sequence charts. |
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DRYER INSTALLATION
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4 |
0 |
2 |
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Tools and equipment |
Select tools and equipment needed for dryer installation using manufacturers' service manuals. |
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Manufacturers' installation procedures |
Identify manufacturers' recommendations for transporting dryers. |
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Transporting dryers |
Demonstrate equipment lifts, dollies, and appliance hand trucks used to transport dryers. |
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Vent and hood |
Determine vent and hood sizes needed for specific laundry appliances. |
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Install laundry appliance vents and hoods in a real or simulated installation site. |
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Installation |
Install electric and gas dryers using manufacturers' instructions. |
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Test couplings of gas lines for leaks. |
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Suggested Resources |
Meyerink, G. (1988). Appliance servicing handbook (2nd ed.). Englewood Cliffs, NJ:
Prentice Hall.
Whirlpool Corporation. (1988). Gas basics - Dryer and range burners, G-17.
LaPorte, IN: Author.
Whirlpool
Corporation. (1988). Gas burners for
clothes dryers, L-36. LaPorte, IN: Author.
Whirlpool Corporation. (1988). Reading and understanding wiring diagrams
for dryers, L-50. LaPorte, IN: Author.
Whirlpool Corporation. (1988). Servicing procedures for mechanical systems
in Whirlpool dryers, L-33. LaPorte, IN: Author.
Whirlpool Corporation. (1988). Understanding laundry electrical controls
and components, L-40. LaPorte,
IN: Author.
Whirlpool Corporation. (1988). Gas basics - Dryers and range burners, L-17
(Videocassette No. LIT 4314011). LaPorte, IN: Author.
Whirlpool Corporation. (1988). Gas burners for clothes dryers, L-36 (Videocassette No. LIT 603141).
LaPorte, IN: Author.
Whirlpool Corporation. (1988). Reading and understanding wiring diagrams
for dryers, L-50 (Videocassette No. LIT 677741). LaPorte, IN: Author.
Whirlpool Corporation. (1988). Servicing procedures for mechanical systems
in Whirlpool dryers, L-33 (Videocassette No. LIT 6025801). LaPorte, IN:
Author.
Whirlpool Corporation. (1988). Understanding laundry electrical controls and components, L-40 (Videocassette No. LIT 603919). LaPorte, IN: Author.