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https://www.harborfreight.com/20-gallon-135-psi-oil-lube-vertical-shopauto-air-compressor-64857.html This was the one I put in, about a year ago at this point. I change the oil every 3 months. So far, no issues.

As usual, you guys are right. I took apart the 4th check-value to find that it was completely broken down. New one in place and I am back up and running. As always, appreciate the insight.

I thought I understood how the water flows in my wash worked, however, after today I am bit bamboozled and I hope to get some help. Issue: - When set to "Rinse", high-pressure wash, the 5CP pump runs and produces good flow/spray in the bay. All good. - A couple of days ago, water was...

I have the sensortron 77041 (https://www.kleen-ritecorp.com/p-1215-ginsan-77041-insert-only-for-sensortron-coin-acceptor.aspx) and accept quarters (25c) in my bays. Probably once a week, I find one of the coin acceptors jammed with ... a $1 coin. Has anyone had experience with this? Any tips...

Thanks. Looks like it was just dead. Ordered a new one.

When looking at Harbor Freight, make sure you get an oil-lubed compressor. Previous owner at my wash left me with a non-lube compressor, and it gave up after a month or so. I have a 20 gallon habor freight compressor. Change the oil regularly to keep it running and so far no problems. It's...

Looking for some help with the attached (picture) coin reader. For some reason, it is stuck in the "coin return" mode, i.e. the metal flap on the back is "in" such that each coin is simply returned. I have tried a new sample coin, but to no avail. If anyone could help me diagnose, I would...

I had a similar issue, but my problem was that my procon pump was bad. It pumped for a second and then didn't go anymore.

Thanks Greg. Where can I get the "one free head" replacement? Is that directly from CAT?

Thanks. Any idea what part number is to get the only the o-rings and teflon backups?

I had a CAT pump with relatively low pressure. Since I am new to this, I figured I would start with replacing the valves. Replaced all 3 inlet valves and 3 outlet valves. All that seems to have fixed the problem. Pump is creating good pressure. However, is there anything that can be salved...

Thanks everyone. Closing this one up. I was able to diagnose the product valve that was not opening, and so no product was coming down (the gravity fed path) to the pump. I replaced the valve and now the product is flowing to the pump and it is still pumping. As always, appreciate everyone here...

Another n00bie question. I would like to adjust the pressure on the output of this CAT pump. Do I turn the brass on top of the pressure regulator? Do I do this while the pump is running and then watch the pressure on the gauge? Picture below.

And another new issue popping up for me. I have a procon pump for the triple-foam. However, when the pump fires up (and is humming), I have nothing that is coming out of the pump side. I checked the input lines (the three colors) and they are pretty dry too. My question is: - Does the Procon...

I appreciate you guys not getting tired of me (yet). I have my multi-meter and it shows 24v when I put it the leads on the yellow cable and green (ground) - in the picture. Should I also be getting 24v on the white cable and the ground at the same time? (I think this is 24V AC if I am not...

It continues. I replaced the fuse, but I think the problem is with my solenoids. That is, I can now see pressure build up on the gauge when the pump runs - which is good. However, I don't have any product coming out the solenoids. (I only tested two). The good news is that the multi-meter...

10 amp fuse? So perhaps the issue is that I am reloading it with a 5amp fuse instead?

I have finally made some progress on this. - Figured out that product was not coming out. - Replaced the product pressure regular. Now when I fire up the pump, the product comes out (good news) - however, after a couple of times, the fuse will pop. Picture attached below. Is a popping fuse...

Agree with the statement above "If it looks like sh!!! people treat it that way". I have a wand/brush break ... probably once a month.

Ah good point. I had not thought about the solenoid getting stuck open.