i have a 5.5 hp 30 gal craftsman oilless electric , anyhow my problem is it keep popping fuse or having problem cranking then pop the fuse but it run just fine if i open the bottom drain open it will run just fine but not when i close it and it will fill the tank once then when its time to refill , it will try turn over but stalls or something i imagine and pops the fuse what must be my problem?
do you have it wired for 110 or 220?
if it will run to pressure up then shuts off..but will not start back up unless pressure is released ...that tells me that your check valve on ur air tube into the tank from comp head is bad...its letting air the wrong way (out of the tank instead of only in)and its dead heading ur pump with air pressur that motor cant work against to restart then blows breaker....
Quote from: scooterbob on March 24, 2012, 12:36:10 AM
if it will run to pressure up then shuts off..put will not start back up unless pressure is realised ...that tells me that your chck valve on ur air tube into the tank from comp head is bad...its letting ait the wrong way and dead heading ur pump so the the cant work to restart
or pressure switch is bad or adjusted wrong usually on at 90 off at 120 ~ 125
do u have it running off a extension cord
it does it either way on ext cord or without , so shd i get a new switch? for the air comp?
idk i know they dont like extion cords for some reason. if its doing both then not sure less i was there.
Quote from: Eroq on March 24, 2012, 12:22:10 AM
do you have it wired for 110 or 220?
im curious to know the problem too I have a little pancake compressor thats doing the same thing. It fills up once and it will try to to pump but cant untill I release pressure to below 5 psi.
i want to know what it is to ive never heard of having to release pressure to gain it new one on me
i read its either the pressure switch or the check valve i m gonna check it tomorrow and pinpoint it
take the cover off and take belt off... if it still kicks out its an elec issue.... if it dont its the check valve... man i work on these all day long
my moneys on check valve
im guessing check valve on mine since it turns on when it needs to but just cant pump, so i have to turn it off before it blows the breaker.
has anyone changed a check valve in a compressor? I dont know much about them but im sure i can figure it out lol
good luck Capt. let us knw what you find :)
Quote from: paul on March 24, 2012, 01:38:50 AM
i want to know what it is to ive never heard of having to release pressure to gain it new one on me
when the tank is full there is more pressure in there then the pump makes at one time... so if chack valve fails all that pressure come back up the tube to the comp head.. and dead heads it...
so if u release pressur out of the tank it no longer has all that pressue on the comp head allowing it to start
Quote from: xjs3667 on March 24, 2012, 01:46:07 AM
im guessing check valve on mine since it turns on when it needs to but just cant pump, so i have to turn it off before it blows the breaker.
has anyone changed a check valve in a compressor? I dont know much about them but im sure i can figure it out lol
good luck Capt. let us knw what you find :)
pm ur number ill talk u through it its simple i do it all day... prob got one in stock for u if ur close that is
Quote from: scooterbob on March 24, 2012, 01:42:47 AM
take the cover off and take belt off... if it still kicks out its an elec issue.... if it dont its the check valve... man i work on these all day long
my moneys on check valve
there s a belt?
I dont think you have a belt on yours I got another one just like yours and theres no belt
ok scooter bob i sent u a pm
ohhhhhh ok gotcha thanks for the info
Quote from: scooterbob on March 24, 2012, 01:46:13 AM
Quote from: paul on March 24, 2012, 01:38:50 AM
i want to know what it is to ive never heard of having to release pressure to gain it new one on me
when the tank is full there is more pressure in there then the pump makes at one time... so if chack valve fails all that pressure come back up the tube to the comp head.. and dead heads it...
so if u release pressur out of the tank it no longer has all that pressue on the comp head allowing it to start
should be... only a few of the bigger sears is direct drive.....if u have the one with the duel piston set up then no there is no belt.
u can also undo the air line from pump so it free pumps just to check... dont run it more then couple min. like that
Quote from: scooterbob on March 24, 2012, 01:47:20 AM
Quote from: xjs3667 on March 24, 2012, 01:46:07 AM
im guessing check valve on mine since it turns on when it needs to but just cant pump, so i have to turn it off before it blows the breaker.
has anyone changed a check valve in a compressor? I dont know much about them but im sure i can figure it out lol
good luck Capt. let us knw what you find :)
pm ur number ill talk u through it its simple i do it all day... prob got one in stock for u if ur close that is
shoot me a price on one or where I can get one around by me lol im in flint, but if Im ever up there by you ill give ya shout, I dont really use this compressor but once in a while, Ive been using my big compressor for everything lol
oh and what would make a compressor only pump up to around 25-30psi and no higher, but it just keeps on running, I was thinking some seals in there or what not??
sorry to kinda jack your thread Capt. :)
pm back to ya capt.
one to u xjs3667
cause mine does the same thing if i plug it into one
Quote from: scooterbob on March 24, 2012, 12:36:10 AM
if it will run to pressure up then shuts off..but will not start back up unless pressure is released ...that tells me that your check valve on ur air tube into the tank from comp head is bad...its letting air the wrong way (out of the tank instead of only in)and its dead heading ur pump with air pressur that motor cant work against to restart then blows breaker....
Sounds right to me too
its the check valve. the check vavle holds the air persure in the tank. its one way vavle, its beeding some air persure back into the compersure.
to check the check valve do i crack the line going to the check valve or crack the big one that goes to the tank?
I would pull vavle out look to see why its not closeing off the air persure. its just a one way vavle.
has it always done this or is it a new problem and did you start using a new plug in point.
Quote from: 4x4xdodgeman on March 24, 2012, 09:12:23 PM
I would pull vavle out look to see why its not closeing off the air persure. its just a one way vavle.
right,prob got lots rust build up
i looked at the check valve dont look rusty at all but for heck of it i ordered new pressure switch and new check valve hope either one will fix my problem
i ve replaced the pressure switch and the check valve still having the same problem what else?
How OLD is it??
I had a 20 gallon C0leman Upright......and did similar things.......kept tripping the breaker.
My problem ended up being the bad MOTOR...........motor was junk and pumped oil into the tank.
Well do your lights go out when it tries to kick back on and pops the breaker? Might just not be getting enough power to turn back on. Has it worked since you put it in the barn?
if its movable take it upto the house and plug it in. See if it works good there.
yeah it worked just fine i ll try something else , thanks for the advice derek and by the way it s oilless
I think I would pull the motor off and take it somewhere and have it checked, sounds like its gettin ready to go out. ;D