As some of you may know from another thread I recently scoured a Snap-On air ratchet (FAR72A) wen I originally tested it I just listed to it but didn't pay attention to the working parts it sounds fine but the head don't want to spin and when it does it has no power at all. I don't want to tear it apart with out some sort of break down guide so I can get it back together correctly and even if I did I wouldn't know what to look for, so my question is what commonly goes wrong with these and what causes them to loose almost all power? A friend of mine suggested it was clogged up and wasn't getting air or maybe just needed oil. I oiled it but it did nothing for it, is the not getting air thing an option? Any help is appreciated, Thanks!
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Snap on air rachet has no power
- Thread starter JUNK-MAN
- Start date
fras_auto
Well-known member
set it upside down spray some kroil in ot let it set for a few days hook up run it and do it again it should free up...
theoldwizard1
Well-known member
Some air ratchet use a ball in their trigger mechanism. The ball rusts and the won't set properly. Get an exploded parts view and check it has a ball.
MFolks
Well-known member
When using any air tools,(except inflation and blow nozzles),I put a few drop of Marvel Mystery oil down the connection, to lube the mechanism. It will help to prolong the tool's life.
Wamsutta
Well-known member
If it has a silencer in the exhaust, try taking that out and see if the power increases; if that doesn't help, it may need new air vanes.
Richard Cranium
Well-known member
You could send it in to have snap on rebuild it, but it would most likely be expensive.
Have you googled for a exp. view by model number?
Have you googled for a exp. view by model number?
stevenhs
Well-known member
I bought a same one on ebay at a cheap price, but it did not work. So I sent it in to have it rebuilt (last month) It cost $130 to rebuild it
lynnbilodeau
Well-known member
I would follow the advice in post 2 above before bailing.
Doesn't have to be Kroil. Could just be trans fluid, MM oil, tool oil, or any thin oil.
Hold it vertically, with the air fitting up. Squirt oil with the trigger held in until it starts running out. Then release the trigger and fill it. Let it set that way (standing up) for a day or two. Turn it over so the air fitting is down, hold it over a drain pan and pull the trigger (or push the button... whatever terminology works for you) and let most of the oil drain. Before you attach an air hose, wrap the tool in some old rags (this is messy) and try it out. Run it until it is no longer spewing oil.
That is a very powerful air ratchet when working properly. I had one for many years. I actually prefer the older FAR7012C model, which is faster, but with less torque when you hit the end of the run. I got one for $10 a few years ago because it "didn't work". Did just what I described above and it works perfectly. Every time I use it, it gets one drop of oil.
Good luck.
Doesn't have to be Kroil. Could just be trans fluid, MM oil, tool oil, or any thin oil.
Hold it vertically, with the air fitting up. Squirt oil with the trigger held in until it starts running out. Then release the trigger and fill it. Let it set that way (standing up) for a day or two. Turn it over so the air fitting is down, hold it over a drain pan and pull the trigger (or push the button... whatever terminology works for you) and let most of the oil drain. Before you attach an air hose, wrap the tool in some old rags (this is messy) and try it out. Run it until it is no longer spewing oil.
That is a very powerful air ratchet when working properly. I had one for many years. I actually prefer the older FAR7012C model, which is faster, but with less torque when you hit the end of the run. I got one for $10 a few years ago because it "didn't work". Did just what I described above and it works perfectly. Every time I use it, it gets one drop of oil.
Good luck.
I would follow the advice in post 2 above before bailing.
Doesn't have to be Kroil. Could just be trans fluid, MM oil, tool oil, or any thin oil.
Hold it vertically, with the air fitting up. Squirt oil with the trigger held in until it starts running out. Then release the trigger and fill it. Let it set that way (standing up) for a day or two. Turn it over so the air fitting is down, hold it over a drain pan and pull the trigger (or push the button... whatever terminology works for you) and let most of the oil drain. Before you attach an air hose, wrap the tool in some old rags (this is messy) and try it out. Run it until it is no longer spewing oil.
That is a very powerful air ratchet when working properly. I had one for many years. I actually prefer the older FAR7012C model, which is faster, but with less torque when you hit the end of the run. I got one for $10 a few years ago because it "didn't work". Did just what I described above and it works perfectly. Every time I use it, it gets one drop of oil.
Good luck.
Will WD-40 work?
maxpower_hd
Well-known member
Will WD-40 work?
In my experience WD40 doesn't work for anything but squeaky hinges and as a rather pleasant deodorant. If you don't have Mystery Oil, Kroil or one of those I would get some ATF.
In my experience WD40 doesn't work for anything but squeaky hinges and as a rather pleasant deodorant. If you don't have Mystery Oil, Kroil or one of those I would get some ATF.
If Kroil, being the first mentioned and tested were could I find it?
maxpower_hd
Well-known member
In an oil can will work, or a small air gun oil bottle. I don't know that model but I had another brand a while back that acted like yours and it was the trigger like mentioned above. I was able to take the trigger out, free it up, clean it and lube it and it worked fine.
maxpower_hd
Well-known member
No. It won't hurt it. It will just make a big oily mess until it sprays out of it.
maxpower_hd
Well-known member
Here is a breakdown. I have one of those too that isn't working well but I have another that does so I never cared.
https://powertoolrepairohio.com/pages.php?pageid=14&breakid=4390
https://powertoolrepairohio.com/pages.php?pageid=14&breakid=4390