Search found 721 matches

by gus
Fri Oct 03, 2025 9:11 am
Forum: Early model JD crawler technical support
Topic: 1010c Rebuild thread
Replies: 9
Views: 604

Re: 1010c Rebuild thread

Several, thrust bearing was shot, bearing retainer was moving, retainer roll pin was sheared off. Keep in mind, my reverser is manual gear shift, not hydraulic. Yours is likely very different but subject to different potential problems. There's pretty regular questions regarding them posted here.
by gus
Mon Sep 29, 2025 2:31 pm
Forum: Early model JD crawler technical support
Topic: 1010c Rebuild thread
Replies: 9
Views: 604

Re: 1010c Rebuild thread

If it has a reverser, I would definitely check it out completely. That was a check that definitely saved my butt from a major problem.
by gus
Sun Sep 28, 2025 10:53 pm
Forum: Early model JD crawler technical support
Topic: 1010c Rebuild thread
Replies: 9
Views: 604

Re: 1010c Rebuild thread

When I opened the rear cover on my 420 and started cleaning around the ring/pinion gears I heard a clunk in the drain pan. I thought there's no clunk in oil! Then another and another and another.... there were 2 bolts still holding the ring gear on and one was loose. Same in about every place I open...
by gus
Wed Sep 24, 2025 2:08 pm
Forum: Early model JD crawler technical support
Topic: 40c Roller interference
Replies: 12
Views: 553

Re: 40c Roller interference

Personally, I would look for a good side frame. It will be aligned and spaced exactly right.
by gus
Sun Sep 21, 2025 9:03 am
Forum: Early model JD crawler technical support
Topic: jd420 pics
Replies: 181
Views: 941855

Re: jd420 pics

What next??
As in:
What are you doing next....
Or
What's going to go wrong next....
(;>)
by gus
Fri Sep 19, 2025 5:15 pm
Forum: Early model JD crawler technical support
Topic: 40c Roller interference
Replies: 12
Views: 553

Re: 40c Roller interference

Did you look or feel for other holes? Might be another set ahead more.
by gus
Fri Jun 06, 2025 9:07 am
Forum: Early model JD crawler technical support
Topic: 1952 MC crawler
Replies: 20
Views: 42607

Re: 1952 MC crawler

I did have a starter jam once, but it was winter and cold. I put it it gear and bumped it. It came loose and started on the next try.
by gus
Sun May 04, 2025 8:09 pm
Forum: Early model JD crawler technical support
Topic: 420C PTO Issues
Replies: 5
Views: 3758

Re: 420C PTO Issues

Can you see that if you pull the top cover?
by gus
Sat May 03, 2025 9:09 pm
Forum: Early model JD crawler technical support
Topic: 420C PTO Issues
Replies: 5
Views: 3758

Re: 420C PTO Issues

Not sure where your damage is. The PTO is a simple bolt on part. My tractor had a flat plate there, removed it and bolted on the pto. I would suggest just removing it to see whether there's and transmission damage or it's totally in the PTO. Complete bearing failure??
by gus
Sun Mar 30, 2025 8:53 pm
Forum: Early model JD crawler technical support
Topic: 440IC 831 Project
Replies: 17
Views: 8477

Re: 440IC 831 Project

Had something like that on the excavator mulcher head. But it was a big Allen wrench which eventually failed. Ended up welding 3/4" nut on it. The heat from the welding actually did it. It came out easily.
by gus
Sun Mar 30, 2025 4:09 pm
Forum: Early model JD crawler technical support
Topic: Spring run
Replies: 0
Views: 3870

Spring run

Decided to try starting the 420. Not quite enough battery to get it going. Got out the extension cord and charger. About 30 minutes and it fired right up. Last fall i changed oil in everything except hydraulics. This was the first run on it. I took it up the hill to push some mud that didn't need mo...
by gus
Fri Mar 28, 2025 1:17 pm
Forum: Early model JD crawler technical support
Topic: Track carrier / cross bar wear
Replies: 6
Views: 5681

Re: Track carrier / cross bar wear

Wear is most certainly on the bottom. Not a great fix, but weld the area, grind back to fit with a hand die grinder. Use a piece of sized material to get a fit. Rotate the shaft to move the wear area.

Likely very hard to find any machine shop to sleeve it.
by gus
Thu Mar 13, 2025 10:06 am
Forum: Early model JD crawler technical support
Topic: No master link pin in track ???
Replies: 13
Views: 3674

Re: No master link pin in track ???

Remove the 2 adjoining track plates. Much easier to work on it.
by gus
Tue Mar 11, 2025 10:13 am
Forum: Early model JD crawler technical support
Topic: Barn find 420C getting it going
Replies: 20
Views: 15351

Re: Barn find 420C getting it going

Personally, I would change the engine and transmission oil. It's been sitting and collecting condensation. The oil on top would be clean but there could be water there. I bought a transmission, which was sitting in a field. Pulled the cover, perfect clean oil. Got it home and a quart or more water o...