Trying to get info on both capacitors.GE motor 115volt 3450rpm part# MO 9045

Most of the time the capacitor is listed on the motor, if not it should be on the capacitor itself. If it's enclosed you may have to remove the cover to find it,

LR 22132 single phase connection help

I would check the capacitor since it appears that the motor is not locked up. Here is a how to on testing capacitors;


how-to-check-capacitor

Due to the nature of power factor correction and other sizing criteria it is best to open the can on the motor that protects the capacitor and order a comparable unit for capacitance, number of sections (- ie, start/run versus Start or Run) plus capacity and working volts AC. Unless ordering from the original compressor supply company, most parts houses will not have a cross reference with that data.

Hi, the starting capacitor on the motor needs to be replaced. its under the cover on the side of the electric motor. Hope this helps. Regards Phil.

You compressor is listed as being oil free. The only liquids that could possibly leak out of the motor (if still from factory condition) is black substance from overheated capacitor/s or grease from a failing bearing. Remove capacitor covers and check for failed cap. Motor bearings will become noisy before failure. Capacitors are available from motor repair shops and many times on ebay. Replace with same uf rating and same or higher voltage. Some caps are larger /smaller with same reading (notice size so cap cover will fit). Good luck

the start capacitor on the motor body is weak,the motor needs this component to over come the air pressure when cycling to re-build the low air pressure,change both the start and run capacitors when doing the start because the other run capacitor is just as old and it will soon fail

The motor should be a capacitor start type--if the capacitor is failing, the starting torque will be weak. Also, if the 'unloader' valve is not working (not sure if this compressor uses one), the compressor is trying to start against tank pressure which needs fairly high starting torque from the motor. Be sure to power the unit from adequately sized outlet and any extension cord. The thermal switch in the motor may be excessively sensitive to overloads. Go to: www.searspartsdirect.com and enter the model number minus the decimal point to get to a series of drawings of replaceable parts. Hope some of this helps!

Sanborn/Coleman was bought out by MAT Solutions. A website I found lists Sanborn/Coleman compressors and parts but it does not show your model number. It does say, however, to email them with your model number and they will be able to find your parts for you. I have included the link for you here: http://www.mastertoolrepair.com/colemansanborn-portable-parts-freedirect-drive-electric-c-271_35_172_178.html

I had the same tripped breaker problem with a similar Sears model 919.195060 (25 gal) and luckily I had access to another, almost identical sears compressor to swap parts to diagnosis it. It turned out to be the run capacitor, but from what I was finding in my on-line research, it could have been a bad winding on the motor or the start capacitor just as easily. If your resistor is outside of the capacitor, just cut the wire right at the capacitor and add flag termnals Mine had 3 wires coming out of the capacitor (not the normal terminal cap style), and two of them were basically just tied together (same color). I didn't have an external resistor. I bought a GE 97F9614 run capacitor (40 mf, 370vac) and other than having to cut out a bit of the plastic on the mounting bracket and buying "flag" style 1/4" terinals from radioshack, it fit and worked perfectly. It seems if GE is the only one that has the right dimensions (1.75dia x 3.88 long, not including the terminals. That capacitor cost $27.50 with tax at a local electric motor shop. Sears doesn't even have any info on the motor parts, like capacitor - they want to sell you a new motor for almost as much as a new whole compressor. I ended up looking at parts forr the motor on a Devilbliss (that's what the 919 means on the model number, that it's made by Devilbliss), but it was not an easy way to go and really didn't help that much). The easier/normal way of matching capacitors is to measure the case dimensions carefully and match up the voltage and uf (or mf) specs,