Hey yall, hoping somebody can shed some light on this issue. So I'm working with a 60 gallon Husky air compressor with a Marathon Electric Motor (3 HP, 60Hz, 230 Volts, 3450 RPM) and a Campbell Hausfeld pump VT490000SJ. There was an issue with a bad check valve that had caused small metal bits to travel into the pump, damaging it to the point where it had to be replaced. So I replaced the check valve and the pump and put everything back together. Now I am having an issue of overheating as it cycles on to the cutoff point. Every time the compressor nears or reaches about 80 PSI the line connecting the check valve to the unloader valve bursts a small hole and pops off. It's literally melting, blowing a hole, and ripping out of the compression quick disconnect. I'm really at a loss at this point. I've tried multiple temperature and pressure resistant tubings that should absolutely hold but don't. I've tried using a different air filter, installing even another check valve in case something was malfunctioning with the last one. All of the online troubleshooting points to there being a blown valve or a gasket needing replacing. How can that be when it is a brand new pump? Any help would be appreciated!
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Air Compressor Overheating Issue
- Thread starter cheeser
- Start date
bsaint
Well-known member
To be honest this happens all the time. Sometimes the user doesnt replace the broken line with the same temp rated stuff or simply the unit is running too long and the hose can't keep it together. We always replace these lines with copper tubing. Any commercial unit should have copper unloader lines.
CompressorPros.com
Well-known member
I think bsaint nailed it. Make sure you have high temp tubing. It shouldn't be failing on just one cycle.
justme-
Well-known member
You asked how can there be a fault in a brand new pump...it happens more than you think..
.. I'd go with the other posts first, always use high temp tube, and prefer copper before I look at a defective pump.
.. I'd go with the other posts first, always use high temp tube, and prefer copper before I look at a defective pump.
sweetk30
Well-known member
I just had a pair of braided stainless steel ptfe lined hoses made for my 2 units I built from mix/match parts . there NOT cheep hoses . there rated for up to 400* line temp . the ir temp gun shows 250* average temp on a pump cycle .
so if your using reg old rubber type air hose this is why YOU ARE COOKING IT !
do the copper line hard plumbed or the stuff like I did .
also what are the specs for the new pump ? maybe your spinning it WAY to fast with the old combo of motor/pulley size .
I had to do my home work with help of guys here to get my stuff dialed in to spin the correct speeds . this could also be a problem for you as you might be doing to many rpm's on the pump and over working it .
so if your using reg old rubber type air hose this is why YOU ARE COOKING IT !
do the copper line hard plumbed or the stuff like I did .
also what are the specs for the new pump ? maybe your spinning it WAY to fast with the old combo of motor/pulley size .
I had to do my home work with help of guys here to get my stuff dialed in to spin the correct speeds . this could also be a problem for you as you might be doing to many rpm's on the pump and over working it .
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