Question about Dewalt Heavy Duty 2 Brad Nailer Compressor Combo Kit

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Dewalt compressor not filling with air drained tank closed valve

Tanks wont fill up constantly running

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Some dewalt air compressors with single cylinder are known to develop trouble with reed valves and /or failed gaskets in head. Parts lists and parts are available at WWW.toolpartsdirect.com Simple test is to remove air filter and check for suction at intake. Bad reeds will tend to blow air out intake as pressure increases. Failed gaskets in head will cause very high temp at discharge hose. Parts are not too expensive. Enjoy

Posted on Dec 05, 2008

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Posted on Jan 02, 2017

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1 Answer

Spray is pulsing


this is usually caused by:

1. water in pressure tank of the compressor - clean the compressor holding tank
2. faulty valve in direct drive compressor (rare!)
3. dirty needle/gasket in the piece.
4. insufficient air flow

regarding 1:
stop the compressor,
open drain on separator and let all liquid out
allow pressure to drop to atmospheric
open drain valve on the tank and drain the content
on the compressor body find oil drain and drain oil
fill with new oil according to instruction on your compressor
close drain valve on the tank and separator
start compressor and check if problem is solved

re 2:
return valve is too difficult to change without specific model knowledge

re 3:
fill 1/3 (pint/500ml or less container)gun container with paint stripper and spray it directly to the sink or other container on full blast - WEAR SAFETY MASK, GOGGLES AND GLOVES! STRIPPER WILL BURN YOUR SKIN!
fill same level with water or solvent and run again, this operation should remove most of residual paints in nozzles and pipes.
check now nozzle for cleanliness and needle assembly, clean what necessary, use bit of vaseline when you will put it back together.
check for consistency of spray on piece of butcher paper with your usual paint. if problem solved - you are fine!

re4;
increase air flow... this actually should be done first.

for better instruction - please provide with model of the gun and paint used.

your comment and rating will be appreciated.

Oct 15, 2013 | Air Tools & Compressors

1 Answer

Stanley Bostitch compressor cpack model runs and runs but won't fill tank.


check for any air leaks and fix as needed. then look for oil coming from cylinder heads , if oil is coming from heads you have blown head gaskets ,it wont build pressure like this. you might also check the pop off valve to be blown open. push the pin in and see if air starts to build up then. If so get a new valve.also check the drain valve under the tank and make sure its closed.

Apr 17, 2013 | Air Tools & Compressors

1 Answer

Tank isn't filling with air


Is the drain valve on bottom of tank closed? Is the regulator turned all the way out?

If those are set where they should be, one or both read valves may be damadaged, these are on top of the piston(s). It is also possible the piston seals failed or are missing. It is also possible the check ball is missing or damaged. This would be in the cylinder head opposite the side piped to the tank.

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1 Answer

Hey there. I am having problems with my Emglo Dewalt d55151 compressor. I have taken it apart and and cleaned everything up. The reason I did all this was..because the cold start valve stays open and its...


The cold start valve will close when volume of air from compressor is sufficient to overcome spring under pin (allows the motor to come up to speed). Evidently your compressor is producing very little air. Usually the problem is leaking or broken reed valves or gaskets. Remove the head and look for torn/ leaking gaskets and replace as needed. Examing the reed valves and seats and look for broken cracked reeds or worn seats. Some of the valve plates used in Dewalt compressors are made of aluminum and would fail. Parts are available at www.toolpartsdirect.com or local dewalt service center. Good luck with your repair.

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1 Answer

Tank wont fill with air but compressor runs


Can you hear the air coming out? Or it is not pumping up at all? If the air is not coming out somewhere like the bypass or the regulator, or the drain plugs, then the reeds are shot in the head, it is an easy fix, and an easy part to get, I hope, call Dewalt's hotline and tell them what's happening, they will fix you up.

Mar 08, 2010 | Dewalt Heavy Duty 2 Brad Nailer Compressor...

1 Answer

Tank starts to fill then motor stops


disconnect line out from the compressor, run unit for about 5 to 10 min. if no problem. I would say that your tank valve is in wide open. replace it. the valve must close on ever down stoke so air don't feed back. this valve is screwed into your tank at lines end- good luck

Oct 15, 2009 | Craftsman Air Tools & Compressors

1 Answer

Tank does not fill to proper psi. tank fills to 60 psi motor keeps running but wont fill to 150 that its supposed too. when i shut off compressor no air leaking????


strip the cyclinder off and inspect the valves if closing and opening also check to make sure you dont have a blown head gasket also on the tank from the pipe from the pump unit is a gold valve you need to open the end off this valve with the tank drained and turn the ruber around with the spring inside and replace this if still doesnt work get back to me bud

Sep 11, 2009 | Air Tools & Compressors

1 Answer

Problem with pump not starting when air gets low


Hi Randy I had the same poroblm And it was the check valve. you can find it at toolpartsdirect.com for 15.26 Part # a19714 youll also find a brake down there which will be helpfull. Hope this helps. David

Apr 08, 2009 | Dewalt Heavy Duty 2 Brad Nailer Compressor...

1 Answer

Starter valve dont close hatachi ec119sa (air compressor)


The start valve gives your motor a running start before the motor begins to load as the pressure increases from an empty tank. The motor strain is more profound when there is pressure in the tank. If you plug the valve, the motor will instantly encounter a heavy load because it has to force air into a partially filled tank. This extra load without the valve will shorten the life of the capacitors and motor windings. There could be two problems with your unit that can revealed by test. What actually closes the valve is a certain volume of air produced by the compressor. If the compressor is not pumping to full efficiency or there are leaks in the discharge hose the valve will not close. Or the valve is faulty. With an empty tank, plug the valve and run compressor and test airline for leaks with soapy water. If no leaks, empty tank of air and restart compressor and take note of the amount of time it takes to fill the tanks to shut off. If it takes an unusually long time to fill, then the compressor probably has valve problems causing low air volume. If the compressor fills to shut off in a short time frame as compared to a similar model then replace the valve. Leaking valves in the head will also cause the pump and discharge tube to run very hot. Parts are available at www.toolpartsdirect.com Good luck with your repair.

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2 Answers

Dewalt compressor not filling with air


if you do not have any air leaks and it is a oil less compressor than it is most likely the piston seal is wore out. if it is an oil compressor that it is likely a flapper valve

Dec 05, 2008 | Dewalt Heavy Duty 2 Brad Nailer Compressor...

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