Introduction
Follow this guide to replace the power cord on a EDCO Disk Grinder model 50200-HD.
Tools
Parts
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            Ensure the machine is unplugged. 
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            Turn the power switch counterclockwise into the OFF position. 
 
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            Use a Phillips screwdriver to remove the two screws securing the yellow switch guide to the switch assembly. 
 
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            Remove the yellow switch guide from the switch assembly. 
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            Remove the black plastic spacer from underneath the yellow switch guide. 
 
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            Use a Phillips screwdriver to remove the four screws securing the upper half of the switch housing to the lower half. 
 
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            Use a 3/8 inch socket to remove the bolt securing the power cord loom clamp to the switch bracket. 
 
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            Use a flathead screwdriver to remove the screw securing the two green ground wires to the switch housing. 
 
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            Use a flathead screwdriver to loosen the two screws securing the black and white wires running from the power cord to the switch. 
 
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            Use a 1-1/16 inch wrench or an adjustable wrench to loosen the power cord's strain relief fitting from the switch housing. 
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            Once the fitting is loose enough to turn by hand, twist the power cord and fitting counterclockwise until it is fully unthreaded from the switch housing. 
 
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            Use two adjustable wrenches to unscrew the strain relief fitting by turning the locknut counterclockwise relative to the strain relief fitting. 
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            1-1/16 inch lock nut 
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            15/16 inch strain relief fitting 
 
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            Insert a flathead screwdriver into the fitting and push the blue grommet out to remove it from the housing. 
 
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To reassemble your device, follow these instructions in reverse order.