ingersoll rand 7,5 240 2 stage 80 gall mag starter uni problem

by ellis
(Hagerstown Md)

as long as you press and hold in the button in center of mag starter circuit (not the reset ) compressor runs fine until you release button. Replaced mag starter unit but same problem. thanx for any help

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Ingersoll Rand 5hp(vertical)3 year old air compressor pressure switch leaks

by Mike
(calgary Canada)

Hi
I have an Ingersoll Rand 5hp(vertical)3 year old air compressor the pressure cutoff switch keeps leaking this is the third switch I have replaced so far all original,it leaks from the housing where the copper tube is attached.
I am lost please help

_____________________
Bill says...

Mike, dump all the air from the compressor withit off.

See where the air line from the pump enters the tank? Remove the line there, and then the fitting, which is also a check valve, clean or repair the check valve and replace it. That should solve the problem, I think.

Cheers,

Bill

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have a high air pressure IR xle unit - intercooler pressure continues to increase...

Problem: when my unit unloads the intercooler pressure continues to increase unitl the relief valve lifts - intercooler psi drops back to around 55psi - pressure builts again - relief lifts again.

When operating correctly - loaded intercooler pressure between 55 to 60 psi - unit unloads - intercooler pressure drops back to around 30 to 35 psi quickly then pressure drifts back to 10 to 20 psi positive pressure until unit loads up again.

Action taken unloading valves were removed and checked for wear and rebuild - reinstalled and now the intercooler pressure does not increase in the unloaded stage but it does not decrease it stay at 55 to 60 psi - then the compressor will shut down after 20 to 30 minutes for high intercooler temperature.

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