Craftsman compressor Model 921.153101, quickconnectplug won't fit
The quick connect plug won't fit into the quick connect socket. It seems a bushing is lodged part way, keeping the coupler half-way open. It seems it should come out, but the manual says nothing of this and I did not want to rip it out.
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What ampage does your compressor draw ? If it is more than 10 amps you have blown a fuse . DO NOT PLUG COMPRESSORS INTO CIGARETTE LIGHTER SOCKETS ! RATHER CONNECT UP DIRECTLY TO YOUR VEHICLE'S BATTERY.
after scewing the fittings on hose & compressor with thead tape (ofcourse) ,simply pull the collar back on the female fitting & incert the male fitting & release the collar .----------these may be called quick connectors but they require a little effert under air pressure.
You can purchase a generic/ universal pressure switch from www.grainger.com or ebay. Just look for the correct fittings and pressure cutout. Cost about $20. Before you order a new switch you should test that motor and pump are ok. Jump the wires on the pressure switch temporarily so line-in is connected to motor line. When you connect cord to wall plug the compessor should start and begin to fill. If function ok then order switch. If the motor does not start, may not be switch. Good luck
It is getting increasingly more difficult to obtain replacement parts for older compressors. If your regulator failed at a fairly high pressure adjustment, say around 100-120 lbs, you could just leave the old regulator in place and add a regulator when needed to one of the quick connects. Purchase a generic pressure regulator from Lowes and add quick fittings to easily connect the regulator or remove when not needed. You could also just remove the old regulator and work-in a new generic regulator in its place. Generic regulators sell for $20 - $40. Good luck with your repair.
Attach your hose and tire filler. They should be a "quick connect".
Take the larger fitting and kind of slide it back and insert the
smaller fitting. Let go of the slide and pull to make sure you have a
positive connection. It will be easier to connect everything when there is no air pressure. There should be an on/off switch located on the right if the tank is facing you. Plug it in, turn it on and wait for it to fill up. Depending on how much air you need, you might have to put some in and then let the compressor cycle back up to its high pressure. Let me know if I can help you further. Mike
The "welded nut" is the pipe fitting into which the drain valve or drain plug is screwed. It's usually brass and the valve or plug can be obtained through Sears or possibly and good harwarde store. Be sure to use pipe sealing compound or teflon tape on the threads when you re-install the valve or plug.
NOTE - THE AIR MUST BE DRAINED FROM THE TANK BEFORE REMOVING THE VALVE OR PLUG. ALSO, POWER SHOULD BE DISCONNECTED FROM THE COMPRESSOR!