919. 156650 PRESSURE SWITCH - HOW IT GOES BACK TOGETHER
I DISASSEMBLED PRESSURE SWITCH IS THERE SOME INFORMATION ON HOW IT GOES BACK TOGETHER IF NOT WHAT IS A CHEEP ONE FOR REPLACEMENT
The number provided is the model of the compressor, unfortunately, not of the switch.
I don't know of any user serviceable parts in the typical compressor pressure switch, James. Nor have I attempted to rebuild one.
According to Craftsman, the replacement pressure switch for your compressor is PART NUMBER: CAC-4221-1 which you can obtain from their parts department: www.searspartsdirect.com .
If the $57 bucks they want is too much, take your switch (pieces of it, at least) to the hardware store that sells compressors, and see if you can find one there that is similar.
I suspect that it will be one of two makes, and if you can plumb it properly, an off brand should work just fine. Try to get one with the same general cut in and cut out, and make sure it connects to your unloader properly.
Compressor pressure switch? - won't turn back on
I just got a craftsman 5.5 hp 30 gallon compressor used.
It charges up but when I try to use it it will charge up to 125 and as the pressure drops it stops working.
It only does this when the psi is set above 60 or so.
When this happens, it won't turn back on unless I take the plastic cap off the pressure switch and hit that manual button that says motor under the plastic top.
When I do that, it turns back on and if I kick the pressure back down to the 60-80 range it works fine.
Drain all the air from the tank, start the compressor (stop hitting the pressure switch) and if it starts, monitor it closely as it approaches the cut our pressure setting.
When it reaches cut out and stops, did the unloader valve work?