Its set to shut down at 125 psi but only gets to 105 psi what is wrong ?
Hi bryon
Here are a few things to check, you may have already checked some of these.
Electricity...Compressors will run best with full 115Vot 15AMP/Or 220V electrical supply from a circuit, over the shortest electrical cord as possible.
Air Leaks..Place your ear close to the compressor and listen for air leaking, if you hear air that is not normal and means you have to locate and repair whatever it is that is leaking.
Check the air unloader valve... The air unloader valve will blown out air when you turned off the compressor, that is normal.
But it should not have air leaking out of it all of the time. If so then it is faulty and in need of repair/replacement.
Valves...If either the intake or exaust valves fail, breaks, or fails to seat, then your compressor will run 24 hours a day and never build up to the correct pressure for shut-off.
Gaskets...Check to see if your gaskets have failed.
You could have a gasket failure between the pistons and you will never know it because it shows no external air leak.
If this situation happens then the air will only cycle between cylinders and never build up the correct air pressure.
One way to check the gasket is remove the air filter, then put your hand over the intake.
Please take time to rate me
Bud
If correct then it will suck you hand against the intake.
If the valve or valves have failed then you will feel the air sucking in and blowing out.
Piston Rings and Cylinder...The piston rings could be stuck,broken, or worn and not allowing the correct pressure to build up in your tank.
A worn cylinder will also contribute to the problem of pressure build-up.
Pressure Switch...Check for air leaks at the pressure switch, it has a rubber diaphram that can fail and leak air out of the system.
Please take time to rate me
Bud
SOURCE: Air Compressor, low pressure
does the compressor keep running all the time but never gets above 40 or does it turn off at 40?
if it is turning off at 40 I would try using another gauge just to be sure it is 40psi, and if that is the case then you probably have a faulty pressure switch, if the compressor is constantly runnign but won't get past the 40psi then you may have a worn out compressor, check the oil for either a low level or if the oil is dirty, if it is you may just need to drain and refill but if that doesn't fix the issue then you will need to rebuild the compressor
SOURCE: ingersoll rand compressor T30 model 7100
I would wonder A if the wiring was heavey enough to carry that sort of load with out overheating B if the motor is big enough to do it for the same reason( ?what is the duty cycle?) C if the receiver is big enough to allow reasonable time between shut down and start up --- remembering that at start up the motor pulls double the current to start up and if it doesn `thave sufficient time to cool alittle before being called on to do it again and that would prompt the question ,does it have sufficient ventilation? these are all queries that would need addressing before I would try to offer a solution ,one thing is certain ,--there is something wrong
SOURCE: ingersoll Rand SSR compressor shuts down loaded or
When it shuts down, press DISPLAY SELECT button once and use the up down arrows to see the code just before shutdown.
HIGH AIREND TEMP
HIGH AIR PRESSURE
LOW SUMP PRESSURE
PRESSURE OR TEMP SENSOR FAIL
CHECK MOTOR ROTATION
MOTOR OVERLOAD
FAN MOTOR OVERLOAD
STARTER FAULT
I am assuming this has a Intellisys controller.
SOURCE: 1989 Ingersoll Rand 185 diesel compressor shuts down under load
most have safety shut downs built in, on the compressor side you will have a high discharge temp shut down, usually set to shut down @ 230 degrees F. normal temp should be @ 180F if it is running hot first check oil level on the compressor, and that the radiator is clean. some machines will have a thermostat that will only allow oil flow to go to the radiator after it comes up to about 150 degrees F. you really need to have a manual on the machine to see what other safety's it may have on the compressor and engine side as well.
Testimonial: "Thank you very much for responding. It was a little low on coolant. The comp. oil level was fine. I changed the fuel filter and the prob is gone"
SOURCE: My ingersol rand compressor shuts down on low
check minimum pressure check valve on top of separator cover.
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