Battery impact wrench

[luvrbus]

It is not electric but Dave C gave me a old puller looks like it was made in 30's after breaking 3 HF pullers I tried it you can beat on the wings with 6 lb sledge hammer and something gives but not the old puller it just keeps on ticking love that puller Dave

[Dave5Cs]

  Not bad for 3 dollars at an Estate Sell. I knew you would know what to do with it. Can't beat the old stuff.

[chessie4905]

Yeah, usually one puller works for 75% of the jobs. Everyone has a favorite. Then you can have 20 different other pullers and not a damn one will work on a particular job. Major thing I do is to clamp the legs near the gear, pulley or what ever so the jaws don't try to spring away. All of my larger ones are Snap on. Haven't broken one...YET. I noticed some years ago why the puller screws have a knob on top. To hit it with a hammer after getting it good and tight. With safety glasses.

[Jim Blackwood]

I have a nice Milwaulkee 1/2" 18v impact wrench and use it mostly for car lug nuts and such. Occasionally it is not enough. But, it beats out the 35 yr. old no name pneumatic every time. Will it still in 35 years? Doubtful. But for bus work it's really not that impressive. Andy has a 3/4 and a 1" pneumatic that he uses. I don't know that I'd want to do lug nuts with the 3/4" but the 1" seems OK. They might be HF brands. I can see a purchase in my future.

Jim

[chessie4905]

With any impact wrench, ANY adapter or extension added to it substantially reduces breakaway torque. Use a deep socket without an extension. Thinwall sockets, besides having a tendency to crack, flex, reducing torque. Use impact sockets.
A trick with a pneumatic air wrench is to add some thicker oil to air inlet. Sometimes the little extra oomph it gives the wrench will overcome a resistant fastener.

[Nova Eona]

Also keep in mind that some rusted bolts will put up a fight only for a certain amount of time - if the bolt heads are not so bad that you risk stripping them, just let the impact wrench do its thing for a few extra seconds before you give up if it doesn't move at first, sometimes it takes a lot of tapping to get things moving.  PB Blaster or some other penetrating oil is your friend in this case.