Central Pneumatic 47065 no pressure
(Orland Hills IL)
I have a Central Pneumatic 47065 that I acquired second hand, but the prior owner never used it. I brought it home and fired it up. The first time the motor kicked on but I did not here that all familiar pump noise at first. It the pump then started to compress air on and off for a few seconds and then it went full out and filled the tank.
After finishing I drained the tank and put it away. 1 week later I went to use it and when I turned it on, the motor kicked on with the fan, however I never here the pump making that all familiar pump noise. It should be noted that the motor is a single shaft that turns the fan and the pump crankshaft. So I believe a motor issue can be ruled out.
I have read many threads about the potential of reed valve failure in this unit, but could that be what I am experiencing? Most people are saying they get some pressure like 25psi or 40psi, I get nothing after 10 minutes and it never sounds like the pump is compressing air.
Hey Rudy... good on you for reading some of the info on this site!
Question. You hear the motor run, you see the fan rotate, you feel the breeze, but you don't hear the pump run.
Can you see if the motor shaft is actually connected to the pump, or has the linkage let go? If the motor is running, the pump should be pumping (regardless of valve issues) and if the pump isn't running, I suspect a power train disconnect.
Questions? Comment here.
(pass christian, MS)
I have a 47065 that my son knocked over...kids.
Motor still runs fine, and it builds pressure but I'm pretty sure the crankshaft case is cracked by the feet that attach it to the tank rails. It leaks all of the oil out eventually, especially when being used and making a big mess.
Being it is cast aluminum(?) should I even try to get it repaired? It sure looks like there are NO replacement parts available.
Or should I just buy a new compressor and use the old tank as storage?
i have a 21 gallon central pneumatic . i turn it on , it runs ten seconds then shuts off ,starts up again after 60 seconds building up pressure about 25 lbs at time. it take 30 minutes to build up to 125lbs . what could my problem be pleease help
Keeps shutting down before desired pressure is achieved
(Corpus Christi Texas USA)
Central Pneumatic model 47065 air compressor
The compressor shuts off every minute or so never hitting 125 PSI. Tank pressure.