Question about Air Tools & Compressors

1 Answer

Spray is pulsing - Air Tools & Compressors

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 700 Answers

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.

Posted on Oct 19, 2013

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

87 chevy s10 blazer 2.8 has power to all related components but no spray from injectors cranks but wont start


-Use noise light to check each injector wire connector to see
If there is power there or not when you crank.
-If there is not power at all then 90% the cam & crank sensor are effect.
Good luck

Mai

Jan 25, 2017 | Cars & Trucks

1 Answer

Bunn coffee maker ITCB-DV not pouring enough water


The pulse program does not result in lower volume. The control board adds time to account for the pulses. If you are encountering less water than before clean your spray head and spray head fitting. 75% of low volume service calls are from calcified spray heads.

Mar 29, 2013 | Bunn Infusion ITCB DV Coffee Maker

1 Answer

No injector pulse


what vehicle? injector pulse controlled by computer. the computer recieves a pulse from crank angle sensor, or distributor pick up, etc.
then controls injector pulse. Mass air flow on some vehicles determines spray pattern

Jun 29, 2012 | 1991 Chevrolet Cavalier

1 Answer

Spray is pulsing


You most likely have a leak at the seal for the neddle try tightening the nut at the trigger if that dosn't work take it apart and check the seal replace if required .This should stop the surgeing at the tip

Apr 25, 2011 | Binks Paint Spray Gun Repair/rebuild Kit...

1 Answer

1986 pontiac fiero won't start, changed fuel pump and relay gas coming up, but no spray from injectors


Actually the injectors don't spray "all the time". They pulse open for a few milliseconds then close every time they are grounded by the ECM. The distributor has a pick-up coil (Variable Reluctance sensor) that provides an A/C (Alternating Current) pulse every 120 degrees of crankshaft revolution to the Ignition Control Module also contained inside the distributor. The I.C.M. amplifies, rectifies and passes along the pules as a +12V square wave to the ECM. The ECM uses these pulses to calculate RPM and determine when the engine is rotating vs. stopped. Together with this information and more from Coolant Temp., Throttle Position, Manifold Pressure and Air Temp. the computer constantly 'looks up' what the appropriate amount of time it should pulse the injectors for to deliver the required amount of fuel.
With that in mind, the injectors are supplied with +12V via a 3 AMP fuse labeled INJ 1 for 1 bank of 3 injectors, and INJ 2 for the 2nd bank of injectors. Make sure your injectors are getting +12V whenever the key is ON or they wont fire (or at least 3 won't).
If all 6 injectors have +12V and you have fuel pressure (checked by pushing down in the center of the Schrader (tire valve stem looking thing) valve and fuel SPRAYING out, and your still not getting fuel it is probably because the injectors aren't pulsing. They are probably not pulsing because the ECM is not receiving any reference pulses from the distributor. If you have spark then you are producing reference pulses.
I hope some of this explained from an actual '86 Fiero GT 2.8L V6 owner/mechanic will help narrow down your problem.

Mar 20, 2011 | 1986 Pontiac Fiero

1 Answer

Jaguar 1983 injector no pulse


might be wise to check the fuel pressure

Dec 04, 2009 | 1983 Jaguar XJ

1 Answer

No gas coming out the injector and there is gas pressure to the injector?


Is there an injector pulse going to the injector?(an electrical pulse to fire the injector).
Is there spark at the plugs?
If the pickup in the dist is faulty you won't have either one.
If your vehicle uses a crank pickup with or instead of dist pick up....if it is defective ....no pulse.
The above is 90% cause of no pulse....other is computer problem 10%.
If you do have a injector pulse and no spray.....and have fuel pressure....change the injector.
A quick check for spark is spray a little starting fluid in it.....if it starts on the fluid....spark is present.

Nov 03, 2009 | 1997 Chevrolet Blazer

1 Answer

1995 buick lesabre custom. has a new fuel


even if you have preasure in the line that does not mean you have fuel going into the engine. you should check the injectors to see if they are spraying and if not you need to check the injector pulse to find out if the PCM is sending the signal to them to spray. to check injector pulse you will need a noide light to test the pulse it the light lights up you have pulse, but easy way to check is pull an injector and turn the engine over see if it sprays.

Aug 24, 2009 | 1995 Buick LeSabre

2 Answers

Crank no start: has no spark and only has injector pulse on cyl # 1. if you spray starting fluid directly into throttle body car starts and stays running and has spark and inj. pulse. once you turn the car...


Fuel pump, you have to have press in the rail to fire all injectors- she will run on ether but not good for her. Ck your pump and any related fuses,relays,wiring.

Jul 11, 2009 | 2002 Hyundai Accent

1 Answer

Lower arm spinning slow/intermittent


running with the door open indicates another fault that could be dangerous unless you have bridged the catch for testing only, water should flow fast and forceful at all times that it circulates, through both spray arms at once, you have to look for blockages in the system, is the waste outlet pipe high enough, this allows the machine to fill adequately so it doesn't pump intermittently, i doubt very much this is an electrical problem hope i have helped a little

Sep 25, 2007 | Zanussi ZT485 Built-in Dishwasher

Not finding what you are looking for?
Air Tools & Compressors Logo

Related Topics:

92 people viewed this question

Ask a Question

Usually answered in minutes!

Top Air Tools & Compressors Experts

John Trevino

Level 3 Expert

1383 Answers

Joe Garcia
Joe Garcia

Level 2 Expert

205 Answers

Brad Brown

Level 3 Expert

15478 Answers

Are you an Air Tool and Compressor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...