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Need Your Collective Brain: HELP!

A

Allan in NE

Well-known Member
Got a problem; not great, but it is just driving me crazy 'cause it just isn't "right".

A little slop between the pitman arm and it's gearbox shaft. Would probably outlast me the way it is, but it just bothers me.

The shaft is roughly 1 1/8" in diameter, splined and TAPERED. Splines are not quite as big as a 540 PTO shaft and roughly 1 1/4" to 1 1/2" long.

Anyhoo, over the years, this thing has been allowed to get loose and wobble the cinch fit out a bit. Not "real" bad, but enough that I just don't wanna trust it.

I can't just "washer it up" on the taper, because then the pitman arm would be too close to the gearbox and would hit the cover bolts.

How in the heck can I tighten that taper-fit up? Maybe "shim" it with a wrap of tin foil in and around the shaft splines?

Thanks,

Allan
 
Allan: Do you have enough room to mill off the bottom of the pittman arm to give you enough clearance to "washer it down"? mike
 
We would tighten up some at the weldshop with splatter.

Take a 12 volt battery a set of jumper cables and an old hacksaw blade.

Hook one end to the shaft.

Hook the other to the hacksaw blade and drag it long the shaft.

It will leave real fine burrs that tighten it up wear in shafts where the bearings ride. Should help your splines also.

Works good.
 
Should have added for anyone else who trys this.

You use the teeth of the blade to drag across the iron.

Courser blades work best. We used old band saw blades the were about 8 teeth per inch.

Gary
 
Maybe clean up the splines--both sets--& use red Loc-tite generously & then lay the 2 pieces together after Gary's hacksaw blade fix. Let it set up a bit--then tighten. I have a lot of respect for Loc-tite in these situations.
 
Get some Banding (palleting Signode stuff) and cut strips enough to put one in every segment of the spline. Bend them at a right angle (heat to red if needed in a vice) and super glue them so they lay in the spline bottoms, then have the angle run up the spline on one side. Use stud and bearing locktite on this, and it will be fixed. JimN
 
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