I was given a 5hp air compressor I'd like to get going again.
It's a small (60gal) Ingersol Rand with a 5hp 220v single phase motor and a 2 cyl compressor pump.
The pump doesn't gulp/expel air when rotated by hand.
The motor appears OK (no physical damage, no burned smell) rotates freely, but the capacitor cover is missing and so is what was inside. It appears to be a single-wide "can" to hold a single capacitor, and there are 2 leads that go into where the can sat, but the capacitor is missing.
I did some searches here and it seems 5hp motors should have a START and a RUN capacitor, and indeed another 5hp motor I have has a double-wide can on the top of the motor casing and likely holds TWO capacitors.
Is it likely my compressor with NO capacitor needs only ONE capacitor, and if so, would it be a Start or Run capacitor, and what value capacitor/ voltage rating should I install to make sure the motor actually works (before I purchase a new compressor pump)?
I rebuilt my last compressor, (an 80 gal IR T-30) with a new 5hp Century motor and a Harbor Freight "V" 2 cylinder single stage pump*, and I am very pleased with the units performance, but am open to other suggestions for lower cost pumps as well.
Thanks,
Bob
*The compressor was an IR T-30 had a burned out 7.5hp industrial motor that must have weighed 75 pounds, and the pump was a 2 stage pump that weighed 130 pounds according to the specs, and which appeared to be good, but I figured it was "overkill" for my uses and went with 5hp and a pump that didn't weight 170 pounds by itself.
It's a small (60gal) Ingersol Rand with a 5hp 220v single phase motor and a 2 cyl compressor pump.
The pump doesn't gulp/expel air when rotated by hand.
The motor appears OK (no physical damage, no burned smell) rotates freely, but the capacitor cover is missing and so is what was inside. It appears to be a single-wide "can" to hold a single capacitor, and there are 2 leads that go into where the can sat, but the capacitor is missing.
I did some searches here and it seems 5hp motors should have a START and a RUN capacitor, and indeed another 5hp motor I have has a double-wide can on the top of the motor casing and likely holds TWO capacitors.
Is it likely my compressor with NO capacitor needs only ONE capacitor, and if so, would it be a Start or Run capacitor, and what value capacitor/ voltage rating should I install to make sure the motor actually works (before I purchase a new compressor pump)?
I rebuilt my last compressor, (an 80 gal IR T-30) with a new 5hp Century motor and a Harbor Freight "V" 2 cylinder single stage pump*, and I am very pleased with the units performance, but am open to other suggestions for lower cost pumps as well.
Thanks,
Bob
*The compressor was an IR T-30 had a burned out 7.5hp industrial motor that must have weighed 75 pounds, and the pump was a 2 stage pump that weighed 130 pounds according to the specs, and which appeared to be good, but I figured it was "overkill" for my uses and went with 5hp and a pump that didn't weight 170 pounds by itself.