SCBA cylinder valve removal

[1bigmurph]

I purchased a scott scba tank on ebay and it won't hold air due to a faulty valve, the seller is sending me another valve I just need to remove the one I have to send back to him but for the life of me this thing won't budge any ideas how to remove it without damaging the cylinder or totally jacking up the valve?

thanks

 

[rkm]

I know you know this, but the tank must be empty. You might take it to the nearest fire dept. Someone there should be able to help.

 

[dizzums]

just get creative ... id say the hardest part is just holding it ... if you have a floor jack, use a couple of old rubber soled boots to insulate the tank and jack it up under the bumper of your pickup to hold it lol .. then you just need something long to get on the valve with to break it loose .. a big pipe wrench, or you could bolt a couple of 2x4s on it lol .. i got faith in ya ...

 

[1bigmurph]

thanks I'll give it a try

 

[DesertSilver]

That is what I need to do my self. Want to check what the inside of my tank looks like after 2 years of use.

 

[Gerry52]

DON'T DO THAT JACK THING! If you've got any ratchet straps try immobilizing the tank by securing it to something solid & use a pipe wrench mid-valve. It shouldn't be super tight if ZERO air is in tank. Try a hair dryer on neck of tank without heating valve. DON'T use it to support the weight of your vehicle! 

 

[Aimright]

I rolled the cylinder in a fairly thick rubber floor mat and then ratchet strapped it with 2 straps to a Black and Decker Workmate portable table. The rubber mat provided extra grip on cylinder to keep it from turning. Also on the Workmate you can open up the center maybe 4 inches where I could nest the tank to further keep it from rolling. Once I got it all tightly strapped in, I used a large crescent wrench, 15 inch I think, and was able to get it on the flat spaces on the tank valve and bust it free. It didn’t take much to come loose.

If you don’t have a workmate table, you might try something like a wood picnic table bench, anything somewhat narrow and sturdy to lay your tank on and get a couple straps around. 

 

[Shiloh1944]

Roll it up in a rubber mat and sit or kneel on it using as much of your body weight as possible, use a large crescent wrench set at about a 35 to 45 degree angle and hit the end of the wrench handle with a large rubber mallet or a small 2 pound sledge and it will break it loose. That is how I did two of mine and it worked both times. Just make sure you are turning the valve counter clockwise. I weigh about 180 pounds.

 

[1bigmurph]

Thanks for all the suggestions I was able to remove the valve without damaging it using a large strap wrench from work, the kind we use for aircraft landing gear cylinders, it worked perfectly....thanks again