Question about Black & Decker Dewalt #D55155 2HP 4GAL Eleccompressor

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HOW TO INSTALL DEWALT AIR COMPRESSOR REGULATOR

HOW TO INSTALL REGULATOR ON DEWALT AIR COMPRESSOR

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Posted on Jan 02, 2017

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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.

Posted on Feb 26, 2009

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2 Answers

Compressor regulator is hard to remove.


May not need to remove the manafold. Order regulator repair kit number (N008792) and try to repair in-place. If the knob is stripped, do not repair. Remove the knob and examine parts before you order kit. For a temp repair, remove the jumper hose that feeds the manafold and plug. Remove the safety pop valve and install a tee fitting. On one port of the tee, re-install the pop valve. On the second port install quick connect fitting for full tank pressure or generic regulator then quick connect. Generic regulator is sold at Lowes and will last longer then factory part (manafold costs about $75). Good luck

Nov 07, 2011 | Dewalt D55146 Heavy Duty 412Gallon 200PSI...

1 Answer

I have a DeWalt D15155, Type 2 compressor. Regardless of setting of the regulator, the downstream gauge shows the same pressure as the tank gauge and there is constant air escaping at the...


Sounds like the diaphragm is leaking. It is use pipe threads , so power down empty tank and remove the mounting bracket and gauge and unscrew the regulator A complete regulator is 5140442-76 You mat be able to find parts. Check ebay. anew one is about $100

Apr 21, 2017 | Black & Decker Dewalt #D55155 2HP 4GAL...

1 Answer

Looking For A Parts Diagram For A Emglo LAG8HGA-8P--Trying To Find The Regulator--Not Like The Ones I See On Emglo's Parts List. This Is A All In One Unit The With The Air Gauges On Each Side Of The...


All you need is a 3/8" NPT regulator. DeWalt bought Emglo years back. DeWalt part number A18682is what you are referring to. Rol-Air would be part number REG0375. Here is a diagram of the newer DeWalt version. Reference part #32 is what you want.

http://servicenet.dewalt.com/Products/Detail?isId=true&productNumber=D55271&selectedType=16219

Jul 16, 2011 | Air Tools & Compressors

1 Answer

Will not allow me to regulate air. compressor kicks on and builds to max pressure.


All air compressors build pressure in the tank(s) to their maximum allowed by the pressure switch. The regulator only controls the pressure of the air available at the outlet. That's why they have two pressure guages, one for tank pressure and one for outlet pressure. If you cannot control the air pressure at the outlet then you have a defective/broken regulator. Dewalt does not make the regulator as a seperate part for their air compressors, you have to buy the entire manifold which includes a regulator to fix this problem.

Jan 31, 2011 | Dewalt 2 Hp 4 GAL Air Compressor

1 Answer

My Dewalt 2 hp air compressor will pressurize, but not let pressure out to tools. tried new hose. problem seems to be near pressure regulator/coupler area.


Yea, there is a blockage there. maybe regulator bad. Take it apart after draining tank of air. And look for blockage of some kind.

Jun 05, 2009 | Dewalt & 2HP Hand Carry Heavy Duty...

1 Answer

Regulator will not turn


I AGREE WITH EDITOR 925. ALSO MAKE SURE YOUR NOT TRYING TO EXCEED THE PSI OF THE REGULATOR OR COMPRESSOR. TYPICALLY YOU PULL THE CAP UP A TINY BIT AND TURN IT. IT MAY BE MAXED OUT ALSO.

Mar 09, 2009 | Dewalt 2 Hp 4 GAL Air Compressor

1 Answer

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.

Feb 19, 2009 | Black & Decker Dewalt #D55155 2HP 4GAL...

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