Search found 721 matches
- 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.
- 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.
- 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...
- 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.
- 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....
(;>)
As in:
What are you doing next....
Or
What's going to go wrong next....
(;>)
- 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.
- Tue Aug 19, 2025 9:35 am
- Forum: Early model JD crawler technical support
- Topic: JD 420c Crawler Hydraulic System
- Replies: 10
- Views: 33150
Re: JD 420c Crawler Hydraulic System
Very nice!!
- 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.
- 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?
- 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??
- 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.
- 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...
- 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.
Likely very hard to find any machine shop to sleeve it.
- 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.
- 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...