Pump problem.

F

FTPW7

New member
Ok guys so heres my problem. I was finishing up a set of fleets the other day and I lost pressure with my downstreaming nozzle. I walk over to the trailer to see what was going on, pulled the trigger and I the gauge was showing 4000 psi with a 2540 and the adjuster on my unloader was popping upping and down and shaking everything. Put a high pressure tip on and it was making around 3000 psi but was pulsing like crazy. Put the soap tip back on and it ended up shooting the top off of the gauge. I kicks into bypass just fine, but its only when its building pressure. Any clue what could be going on here?
 
4000 with a 2540 tip? That sounds like an obstruction in your hose or gun. When the unloader goes up and down like that its usually a leak downstream. But if you pull the trigger and only a fraction of the water is getting through, that would cause the unloader to cycle. Might be the gun too. It could have a blockage Try a different one.
 
Check the injector too. If a piece of crud gets stuck in the hole it can do that.
 
Ralph, tried 2 different guns with the same result. Russ, I pulled the injector off and tried it on another machine and it worked fine. That was my initial thought. I ran with no injector and it ran better,but still pulsed a little.
 
Did you try a different hose? or with no gun attached? What you described sounds like there is something blocking the flow downstream. What machine are you using? what is the rated pressure? Could be a funky unloader too. But I don't think that would cause 4000 psi with a 2540 tip, the only thing that would cause that is something blocking or restricting the flow, unless your machine is putting out 40 gallons a minute!
 
Ralph Q said:
Did you try a different hose? or with no gun attached? What you described sounds like there is something blocking the flow downstream. What machine are you using? what is the rated pressure? Could be a funky unloader too. But I don't think that would cause 4000 psi with a 2540 tip, the only thing that would cause that is something blocking or restricting the flow, unless your machine is putting out 40 gallons a minute!
Click to expand...

I tried with no gun, and its spraying a funky pattern. There has to be a block somewhere. I initially thought it may be the unloader switched them out and the same thing, Im heading back up to the shop to work on it in the morning.
 
FTPW7 said:
I tried with no gun, and its spraying a funky pattern. There has to be a block somewhere. I initially thought it may be the unloader switched them out and the same thing, Im heading back up to the shop to work on it in the morning.
Click to expand...
New hose time. You say you were doing fleets, did someone run over the hose?
 
There's 2 ways to troubleshoot..
Look for "what's wrong"
or.. Prove "What's Right"

Sure, you want to start with the obvious/easiest checks first, but then..
Start at the water supply, and "prove" everything is right, until you see something wrong.
To troubleshoot FAST..
Always use BOTH of the above methods, alternating to the next easiest step.
"Making Sense" of the problem is ALLways less confusing,
.. and you won't miss anything.
Where questions arise, ASK a "System Tech", and you "learn to fish", instead of just discovering them accidentally.

Troubleshooting a cold water machine that runs, should take seconds.
 
ImageUploadedByTapatalk1420596792.091936.jpg
Checked all of the obvious things, then pulled the bottom valves out since the top ones have all been replaced recently, and found this baby out. There was another broken piece I didn't get in the pic but that was the problem.
 
Wow. Blasted valve Poppet is usually caused by an unloader not unloading..
check it VERY carefully, now that you might get pressure again..
Don't let it blast anything else.
..and a reminder..
EVERY pump should have a safety relief, though MOST don't
 
I was wrong,
Before I read all the replies my initial thought was a truck ran over the house and kinked the hose.

Glad you worked it out.
 
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