Watch out for that tank, it may be a very dangerous tank by now. Old tanks like that, especially those ones (being non-industrial) corrode on the very bottom. Over time the corrosion turns the metal very thin, this makes the tank prone to rupture. Check valves should also be cleaned annually or bi annually, they get very hot, old pumps spew a bit more oil, this creates an ignition point if the oil mists in the tank. It's rare, but does and has happened more then once.
Is that a start capacitor-black or a run capacitor- silver on the motor. Check amperage draw. it should be 17.5-18amps under load if its higher. check the centrifugal switch. sometimes the contacts get dirty or burned. other than that it could be the capacitor.
Third, Put a meter on it to see how many amps it is drawing. Check your breaker capacity as well. Keep in mind that just because a breaker resets, doesnt mean it is good. Hope it works out for Dads old compressor! I know how it is... good luck and have fun, J
Your first pressure switch was the correct one. You have it wired incorrectly. There are two contacts with two screws on each contact. Which are L1 and L2 Looking at the top. First two screw are for either you black or white and same for the black. Just make sure each black an white are paired with each other.
First of all, the small copper pipe is simply an unloader, and the relay senses the pressure from the BIG pipe, not the small one. The small one just reduces the head pressure for startup. I have my small line crimped, and going on 10 years with no problems. Second, If this compressor has been sitting for many years, then I would suggest taking the head off and inspecting the cylinder walls, or, at the very least, misting wd40 in the intake while running at no load for a bit.
If you suspect motor then remove drive belt and leave it running for 4 or 8 hours and see how hot it gets. If it get really hot off load then its knackered.
When you say breaker. What type of breaker. Is it an earth leakage trip breaker or over current breaker. If its an earth leakage breaker tripping someone may have had the problem in the past and disconnected the earth to bodge it. However this is dangerous. However in the UK some types of breakers are not suitable for welders or motors so you can only use good old fuses in your elecky panels.
I'm going to try a new power cord first. If that doesn't work I'm afraid it's the motor windings and a new motor costs too much to put into this compressor. Thanks for watching.
Paiste- motor is shot. Its drawing too many amps due to bad windings. Its common for that to happen on an old motor. At 80 psi that motor is really working. Get yourself a new one- get two capacitors... Or see about getting it rewound. I think a new one will cost less.
Thanks. Sounds like you know what you're talking about. It's starting to make sense. I think I have to much into it already but I just might fix it anyway since it was my Dad's and he past away last summer. Thanks for the help.
Comment removed
jkvv2006 1 week ago
Watch out for that tank, it may be a very dangerous tank by now. Old tanks like that, especially those ones (being non-industrial) corrode on the very bottom. Over time the corrosion turns the metal very thin, this makes the tank prone to rupture. Check valves should also be cleaned annually or bi annually, they get very hot, old pumps spew a bit more oil, this creates an ignition point if the oil mists in the tank. It's rare, but does and has happened more then once.
mythril4 2 months ago
@mythril4
Thanks. I'll keep that in mind.
paisteboy 2 months ago
Is that a start capacitor-black or a run capacitor- silver on the motor. Check amperage draw. it should be 17.5-18amps under load if its higher. check the centrifugal switch. sometimes the contacts get dirty or burned. other than that it could be the capacitor.
retcru 3 months ago
try hooking up your compressor whit out your regulator and see if the breker pops also check if the motor is getting hot
P1001AT2 4 months ago
22 amp breaker needed
ray704ful 4 months ago
What if the compressor, just keeps pumping and the tank won't fill? what should I do?
utubejohnny1 5 months ago
@utubejohnny1 try a new pressure switch sounds like your diafram has a hole in it.
ray704ful 4 months ago
Third, Put a meter on it to see how many amps it is drawing. Check your breaker capacity as well. Keep in mind that just because a breaker resets, doesnt mean it is good. Hope it works out for Dads old compressor! I know how it is... good luck and have fun, J
jp2son 6 months ago
@jp2son
Yeah, that's a good idea. Thanks for watching.
paisteboy 6 months ago
@jp2son
Your first pressure switch was the correct one. You have it wired incorrectly. There are two contacts with two screws on each contact. Which are L1 and L2 Looking at the top. First two screw are for either you black or white and same for the black. Just make sure each black an white are paired with each other.
ryanpalgood7 6 months ago
@jp2son dont use a long cord if you do use heavy guage wire . the motor may have some burnt wires in the winding switch is fine.
robbie4035able 3 months ago
First of all, the small copper pipe is simply an unloader, and the relay senses the pressure from the BIG pipe, not the small one. The small one just reduces the head pressure for startup. I have my small line crimped, and going on 10 years with no problems. Second, If this compressor has been sitting for many years, then I would suggest taking the head off and inspecting the cylinder walls, or, at the very least, misting wd40 in the intake while running at no load for a bit.
jp2son 6 months ago
If you suspect motor then remove drive belt and leave it running for 4 or 8 hours and see how hot it gets. If it get really hot off load then its knackered.
MakeDoAndMend1 6 months ago
When you say breaker. What type of breaker. Is it an earth leakage trip breaker or over current breaker. If its an earth leakage breaker tripping someone may have had the problem in the past and disconnected the earth to bodge it. However this is dangerous. However in the UK some types of breakers are not suitable for welders or motors so you can only use good old fuses in your elecky panels.
MakeDoAndMend1 6 months ago
Awww crap...someone taught me you are suppose to go AGAINST the threads when using teflon tape...PISS!!!
heartlessangel7 7 months ago
put a switch on it. not difficult.
schrankm 7 months ago
could be that the check valve is not seating, causing back pressure. There should be one coming out of the comressor head.
chuckdavidson87 10 months ago
@chuckdavidson87
I'll look into that. Thanks for tip and for watching.
paisteboy 10 months ago
change all the wires
jujuwooley 10 months ago
@jujuwooley
I'm going to try a new power cord first. If that doesn't work I'm afraid it's the motor windings and a new motor costs too much to put into this compressor. Thanks for watching.
paisteboy 10 months ago
change all the wires in it
jujuwooley 10 months ago
Paiste- motor is shot. Its drawing too many amps due to bad windings. Its common for that to happen on an old motor. At 80 psi that motor is really working. Get yourself a new one- get two capacitors... Or see about getting it rewound. I think a new one will cost less.
mrwiggles2 10 months ago 2
@mrwiggles2
Thanks. Sounds like you know what you're talking about. It's starting to make sense. I think I have to much into it already but I just might fix it anyway since it was my Dad's and he past away last summer. Thanks for the help.
paisteboy 10 months ago
could be a shorted winding in the motor
KrankieV2 10 months ago
@KrankieV2
That could be. Thanks.
paisteboy 10 months ago
maybe it is the power cable, since it is so long it might have some damage in it.
just a thought.
cat123456789101 10 months ago
@cat123456789101
Maybe I can put a meter on it to check. Thanks.
paisteboy 10 months ago