>John writes ; I'm stripping my spare gearbox, and I have a problem. What
>is the best way
>to extract the intermediate gear shaft? The manual shows a special
>puller,
>which, of course, I don't have. The last time I did this, part of the
>ear
>on the shaft broke, so I want to try to avoid a repeat of that mistake.
>
> I find that the shaft "usually" comes out very easily if you clean the
>area around the shaft end, spray a little WD40 or similar in the joint,
>remove the retaining plate (extract the stud first using the two nut
>locking technique if it has not come out with the nut) then rotate the
>shaft using channel locks or similar to free the joints, extraction is
>then simple.
>
>If the shaft appears to be tight, the application of some heat to the
>aluminium will soon create clearance due to the diferent expansion rates
>of the steel and aluminium. I have never had to resort to this technique
>in reoairing several hundred LR gearboxes.
I thought about applying heat, but the only applicator handy was my
oxy-acetylene torch, so I decided to try more conservative
approaches. Channel locks were a no go, as there are several studs in the
way, and I was too lazy to take them out. I tried a hammer and punch in
the groove, but I couldn't turn it that way, so it does seem to be a bit
tight. I awoke this morning with visions of an impact puller made of 1/8"
x 1/2" angle iron, so that may become this afternoon's project. If that
doesn't work, I may resort to heat.
John Karlsson
956 Main Street
P.O. Box 1023
Hope Valley, RI 02832
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