I do not have a picture, but maybe I can describe how to assemble. The rear of the regulator has a removable plug the reveals two parts, a spring and a valve with rubber seat, the spring goes against the plug and pushes the valve against the seat on the body of the manifold. I find that this valve gets stuck on the plug and will not work correctly, easy to repair however, just remove the valve from the plug and apply grease so that spring can work forcing the valve against the body of the manifold.
Reinstall the rear plug and verify that the valve moves by pushing down on part of the valve that sticks out from the adjustment knob side. Now for the knob side of the regulator. Insert the adjust screw into the housing with the square head first. This square head is what the adjustment knob turns to adjust the pressure. When installing this part, turn the adjust mut so that there is pressure on the heavy spring. Next on the adjustment screw is the heavy spring followed by the round plastic piston that has a lip seal on the outer groove. The piston lip seal goes installed with the open lip facing the body of the manifold and away from the heavy spring.
There is a small oring that is installed on the round plastic piston at the center. This small oring makes contact with the valve that you installed from the rear of the regulator. So that's it. I hope that you can make it work with this description. I have worked on many of these regulators and find that most of the problems arise from the valve on the back side of the regulator, getting stuck on the rear nut due to water. Next problem is the round piston with the lip seal cracks due to too mush tension when cranking down on the pressure adjustment knob. Finally the third problem is the small oring at the center of the round plastic piston will get out of shape and not seal against valve installed from the rear causing leak at the adjustment knob. Good luck
SOURCE: dewalt D55155 air compressor regulator installation
The d55155 unit suffers from regulator problems due to weakness in the design of the manifold. The manifold parts are very light duty metal and will break during installation if not carefull. If you can return the parts to dewalt it may be more efficient to to use a generic pressure regulator from www.grainger.com for about 20 bucks and mount using a couple of 1/4" tees directly off the pressure switch. Remove the hose from the pressure switch that feeds air to the manafold . Install parts so that the quick disconnects, guages and new regulator are accessable from the side. It will not be pretty but problem will be solved for long term. We repair other brands that come with control panels using the same method. Pressure regulators built into a manafold will fail. For demanding customers we have recreated the manafold using 1/4 pipe fittings and refit the gauges and grainger regulator into panel.(lots of work) But leave the safety unloader at the pressure switch. If all you need is a good functioning compressor same time and money and mount to side. Good Luck and email if you have questions or other issues with your dewalt.
SOURCE: I have a dewalt D55155 compressor that has not
have you turned up the regulator, the big black know by the output fitting
You may have to open andclose it a few times cuz it may have trash or be stuck
SOURCE: I have a D55155 Dewalt air compressor. When I
Yep! 2hp compressors need a strong power source. They'll draw alot of amps on initial startup. If they aren't getting sufficient power,they'll act just like this. It's causing the compressor's circuit breaker to cut out. Then when it cools off, it'll reset.
My suggestion is to avoid using extension cords if at all possible. The longer the cord, the harder it will be to start.
Try to plug directly into an outlet. If you need extension cords, use the shortest length possible. Also make sure the wire guage in your extension cords are no smaller than a 12guage wire(the higher the number, the smaller the wire guage).
SOURCE: Dewalt D55155-QS 220 volts can it convert to use 115 volts?
The short answer unfortunately is no. The internal motor that drives this compressor requires 220 and will not work properly with 110. Your only option would be to replace the motor with one compatible with 110. The cost of that would approximate a major portion of a replacement unit.
Sorry about the bad news.
Dan
SOURCE: dewalt emglo d55155 air compressor-what
Need to use air compressor oil it is available at you local hardware store in the tools department.
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