Question about Binks MACH 1 HVLP Pressure Feed Spray Gun, 1.4mm Tip # 6202

1 Answer

When tank pressure is on gun sprays without trigger pulled

We have rebuilt the gun a couple of times. It has all new seals. Can some one tell me what seal may contribute to this problem

Thank You

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The only seals I know of that would cause this are around the spindle assembly. If you have changed these then you may have a problem with the seal retainer, a weak spring or bent spindle. Also make sure there are no metal shavings to hinder the sealing. Sometimes they can be left in the gun during machining process.
Hope this helps but if not please let me know and I will try and trouble shoot further.

Posted on Jun 01, 2010

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1 Answer

Doesn't stop spraying after trigger is released


Dear Peggy,
You can have a problem with the valve at the gun which is sticking open. This valve can be OK without pressure, but with pressure it can stick open. It is very easy to make sure, by attaching a good gun or a new gun. In simple words...replace the gun.
Regards,
Fulltech.

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I bought a honda pressure washer power boss 3000. I load the gasoline, start the machine, but pressure water is not coming out from the trigger. i tried so many things , but can t get started.


If you are using a water tank for water supply, remove the water supply line from the pressure washer and connect a water hose from a faucet. Turn the water on, then crank the engine. Pull the trigger of the spray gun until water comes out. When then water starts to spray properly the release the trigger, shut engine down with pressure on the line then reconnect the water supply from the tank to the pressure washer. If this fixes the problem then the problem was "air-locked"! Happens alot with new pressure washers that have never been run. If you need any other help, please email me @ davidandlisacampbell@yahoo.com

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1 Answer

Water leaking from spray gun


It depends on were the water is leaking from on the gun. If the water is leaking from were the high pressure hose goes into the gun it could be that on oring as been damaged. If the water is coming from the trigger you may need a new trigger gun.

If you tell me your model number (1.xxx-xxx.0) i can tell you the part number that you will need to give to your Karcher dealer/supplier to replace it.

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1 Answer

The seal is damaged on the needle and letting paint travel back along the needle back to the trigger area. .


The trigger assy. will have to be taken apart to replace the seal on the stem. Be sure to check the trigger pin for smoothness where the seal has been sealing. Replace the trigger pin if worn or your new seal may leak.

Dec 01, 2010 | Porter Cable ExCell Siphon Feed Spray Gun...

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Tdwbit269@aol.commy gun will not shut off even when i pull the trigger, liquid keeps flowing out. good thing is that i am getting something through the hose so that means my machine is working right?


You need a re-build kit for your gun.

The needle that pulls back when you squeeze the trigger is no longer making a seal when you release the trigger.
The problem is worse when you spray thin oil-based paints.

Depending on the gun, Sherwin Williams has kits for the Graco gun. That's where we bought ours for years up until I retired from painting.
Home Depot and Lowes may have parts.

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1 Answer

What would cause a pressure washer to cut off after you pull the handle to get the water started


We used power washers for years

When you pull the trigger, the engine is supposed to accelerate because the back-pressure on the pump is released.

The back-pressure is why you're supposed to keep the gun trigger open when starting the engine. It sounds like you're starting the engine with no water passing through the gun.

Inspect the exhaust port >> if exhaust is clogged with carbon or dirt, then the engine will not run at high speed.

The problem may also be cause by a rusted choke lever. If you notice when a small engine accelerates, the choke lever moves up as the carburetor demands more gas.

Start the engine with water passing through the gun >>> move the choke lever a little bit at a time and see what happens. Keep water going out of the gun. When the surfaces are cool, spray WD-40 on the lever and see if you can free it up. WD-40 is extremely flammable.

If your engine will not fire at all by starting with water passing through the gun, then your gas supply might be limited or your carburetor gummed up. Pull off the rubber gas line that connects to the carburetor and see if gas flows.

Next, pull off the air filter and see if the machine runs good without air filter. You may have clogged air filter.

While the carburetor is exposed, spray WD-40 into carburetor. See if you can get engine up to full throttle while spraying WD-40 into carburetor. Keep spraying the WD-40. Keep the water flowing out of the gun.

If the engine throttles up all the way on WD-40 but won't run without it, then your carburetor is probably gummed up.

Our old power washer won't run with the choke set at full throttle. We just got into the habit of leaving the choke alone. We'd pull off the air filter and spray WD-40 into the carburetor so the engine would spark healthy without messing with the choke at all. And we kept the choke about 2/3 open all the time.

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1 Answer

Trigger pull is not as far as older model


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I have a similar problem and diagnosed it to be a problem with the gun. I spoke to a technician that services this pressure washer and he walked me through all the diagnostic steps. The pump is working because there is pressure being built up and the gun sort of works because you can get water out before the washer is started. The technician said that the mechanism inside the gun is either clogged or broken. I am going to Home Depot or Lowes to purchase a new gun and will try it tonight. Guns are only about $30-40. He said generic is fine as long as the thread matches and PSI is in range. Good luck!

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1 Answer

Not spraying


Sounds like you need to completly dissasemble and clean thorougly.

Feb 03, 2009 | Binks MACH 1 HVLP Pressure Feed Spray...

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