JDcrawlers Messageboard

PTO is an attachment, takes about 3 minutes to install. 40 crawler uses it's owm PTO, different than the tractors. Will a tractor one bolt on, yes, but it will not be right. Hydraulic pump goes on the end of the camshaft, there is a triangle shaped cover on the front of the engine by the generator t...

I did get just a few cut. I have not had time to see if I can mill the slot in them, or if I have to take them somewhere to have it done.
Lavoy

I wonder if he didn't mean clutch type as apposed to gear type. The clutch type reverser was only on the very last production 420's, after serial number 131,309. I have had many people think that because the late 420, 430 and 440 crawlers had a clutch type reverser that you did not need to use the e...

One thing just dawned on me, if you are talking about welding on the casting that the crossbar goes through, they are cast steel, not cast iron, you can build them up with standard rod or wire.
Lavoy

I got mine from a place called USalloys/Weldtech, their phone number is 800-325-1568. According to them preheat is beneficial, but not necessary, no post heat required, peening is beneficial They do not recommend CO2, but you can use C25, straight Argon is preferred. It machines very well. Comes in ...

It is more work on a 56 than it is on the later 420's. You need to remove the center section, there is a small amount of grinding that you will need to do, one hole that may need to be reamed out, and the brake pedal cut off somewhat. It is not all that bad to do, the major work will be splitting it...

I just put in a new battery and cables, new spark plugs and wires, changed engine oil and filter, changed transmission fluid.
Lavoy

Cast steel requires nothing special as far as rods go, do you mean cast iron? If you use stainless steel, plan on doing lots of peening to relieve stress cracking. I have abandoned stainless altoghether, to big a pain in the you know what. Local machine shop that is probably the best in a large area...

The shims are for tread width adjustment to make sure that your track frames are parallel. The 4 bolts that are around the plate that the shims are underneath should be tight, if not, that will help. Also check to make sure that the plate itself has not broken free of the crossbar.
Lavoy

Larry, You can't get the correct ball ends for the 3PT arms. I have seen weld on ends that are that size, but they would look like hell once welded on. I can make you a complete new arm insert. It will be more mone than just welding on a ball end, but they are a better looking deal. The scarifier yo...

If you have the throwout bearing carrier out, you should be able to slip the cam over the throwout tube.
Lavoy

For Sale: MC with MC1000 tool carrier. Crawler runs and drives, has aftermarket dual hydraulics, meant for a JD, not just cobbled on. Correct seat, and fenders, hood is good, grille will need mesh, and some straightening. Just fired it up at 20 above and moved some snow. Call or e-mail if you want m...

You do of course realiize the flaw in your line of thinking don't you??????????????????????? Paint this one green, and then you really need to go find another one to paint yellow so that you have an accurate representation of the availabe colors for that crawler.
Lavoy

I would echo everything Jeff said, including the tried the shortcut way.
Lavoy

No pics, it is still something I am kicking around.
They are cast and stamped steel both.
Lavoy