POWER WINDOWS

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POWER WINDOWS
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COMPONENTS

• Master Switch
• Individual Switch
• Drive Motors
• Rack and Pinion Flexible Strip
• Safety Switch
• Window Regulator

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NORMALLY OPEN SWITCH
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NORMALLY CLOSED SWITCH
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DRIVE MOTORS

• Permanent Magnet
• Two Field Winding Motor
• TAPE DRIVE
• Cable Drive

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DIRECT DRIVE MOTOR
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WINDOW REGULATORAssist Up Spring
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WIRING CIRCUITS
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DIAGNOSE IT RIGHT THE FIRST TIME

• Think about the circuit you are diagnosing.
• Get a plan of action through reasoning
• Use the Schematic of the System

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DIAGNOSIS

• Broken Wire in Jamb
• Sluggish Operation
• Excessive Voltage Drop
• Jumper Leads
• Binding Linkage

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Check Switch Operation
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Check for Power at Motor
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Component Replacement

• Safety First!!
• Cleanliness
• Make sure diagnosis is correct.
• Verify diagnosis before motor replace
• Verify Repair (Is problem taken care of?)

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DEMONSTRATION
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SHOP EXERCISE