Introduction
Repair for a faulty regulator on a Dewalt DWFP55130 air compressor.
Warning: Unplug power and remove all air from tank before attempting.
Tools
Parts
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            Unscrew and remove the black plastic regulator knob. While unscrewing, it will reach a stop and will keep like cannot unscrew further. Just break through the stop and unscrew to completely remove 
 
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            Very gently unscrew the valve with a Philips #3 screwdriver. Take care not to destroy the plastic part 
 
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            Replace screw if broken. Photo is not of the original spring. The original spring had corroded and broken into 50 pieces. The spring doesn’t have to be a perfect fit, just has to hold the part in place. The original spring was approx 6mm wide, 20mm tall and 0.5mm thickness wire. 
 
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To reassemble your device, follow these instructions in reverse order.
5 comments
do you know the replacement part numbers just in case?
myke -
The replacement parts are not listed in the manual and not available for sale. Hence this workaround.
what type of spring did you replace it with?