Search found 223 matches
- Thu Feb 10, 2022 6:40 am
- Forum: Early model JD crawler technical support
- Topic: 40/420 head
- Replies: 5
- Views: 3902
Re: 40/420 head
Common in my experience. Original? head on my 40 cracked, replacement head from an M cracked and the original head on my son-in-laws MT cracked. 2 were repairable by the local machine shop, the 3rd one suffered a catastrophic break. As you probably know new ones are usually available. Check with Lav...
- Sun Jan 30, 2022 11:51 am
- Forum: Early model JD crawler technical support
- Topic: Master pins
- Replies: 8
- Views: 8154
Re: Master pins
An older friend of mine used to call the snap rings "oh sh*t" washers from his usual expression when one would go flying off on it's own, never to be seen again
- Fri Jan 28, 2022 6:58 am
- Forum: Early model JD crawler technical support
- Topic: Oh crap!
- Replies: 12
- Views: 6950
Re: Oh crap!
Probably. Have seen this happen a couple of times with friends 40 or 420 crawlers. Not a hard fix.
- Tue Dec 07, 2021 5:56 pm
- Forum: Early model JD crawler technical support
- Topic: Seafoam in Hydraulic System?
- Replies: 4
- Views: 4086
Re: Seafoam in Hydraulic System?
Thanks dtoots1. I'll have to wait for the weekend for temps above freezing so I will do it then. I am putting the dozer in a heated building for the winter at that time as well so I won't have any more problem with freezing but will still use the Seafoam to alleviate the moisture problem. Several ye...
- Tue Dec 07, 2021 10:14 am
- Forum: Early model JD crawler technical support
- Topic: Seafoam in Hydraulic System?
- Replies: 4
- Views: 4086
Seafoam in Hydraulic System?
I must have a bit of water in the hydraulic system on my 40 crawler. It was below freezing a few days ago and the hydraulics would not work. Yesterday the temp was above freezing and today the hydraulics work fine. I changed the fluid a year ago and didn't see any water at that time. I suspect there...
- Thu Nov 04, 2021 3:26 pm
- Forum: Early model JD crawler technical support
- Topic: 1010 gas crawler loader leaking coolant
- Replies: 9
- Views: 6028
Re: 1010 gas crawler loader leaking coolant
It would be helpful to know where you are located. There are rad shops in various areas that do a lot of work on vintage radiators and if needed can often build you a new one. Maybe you could add your location to your info.
- Mon Nov 01, 2021 7:09 pm
- Forum: Early model JD crawler technical support
- Topic: Rear PTO and 3 Point hitch questions
- Replies: 8
- Views: 5388
Re: Rear PTO and 3 Point hitch questions
The 40c as well had provision for 2 PTO shafts on the rear of the transmission. One for Standard PTO attachment providing 560 rpm and one for auxiliary equipment requiring higher speed and provides engine speed (1850 rpm) for such things as winches and hydraulic pumps. I think MC crawlers had a simi...
- Wed Oct 27, 2021 5:47 am
- Forum: Early model JD crawler technical support
- Topic: Any body play around with rubber pads on 420 or other crawlers?
- Replies: 19
- Views: 14812
Re: Any body play around with rubber pads on 420 or other crawlers?
Like Stan, I have never seen the actual Rubber Shoe but there are pictures of it, along with all of the other types of shoes, in my 40c parts catalog. It looks like they have a bevel around the edges and have 2 integral studs to use nuts to affix them to the pads. Can't tell the size so I don't know...
- Tue Oct 19, 2021 5:37 am
- Forum: Early model JD crawler technical support
- Topic: 420c steering to the right...
- Replies: 15
- Views: 9358
Re: 420c steering to the right...
I have a 40c that ended up with the adjustment bolt almost to the end of the slot when adjusted correctly as well. Probably just a result of accumulated wear in the various working parts. I wouldn't worry about it as long as it is adjusted by the book and works properly. Other opinions may vary.
- Sun Oct 03, 2021 4:30 pm
- Forum: Early model JD crawler technical support
- Topic: zenith 14997 carb
- Replies: 3
- Views: 3009
Re: zenith 14997 carb
Others can correct me if I am wrong, but I would adjust it following the same procedure that is recommended for the original carb. Whatever your initial adjustment, you are going to change it anyway following the "trial and error" process recommended in the manual.
- Tue Aug 24, 2021 12:43 pm
- Forum: Early model JD crawler technical support
- Topic: 1957 420C seized - photo journey
- Replies: 34
- Views: 18995
Re: 1957 420C seized - photo journey
Don't know much about this but can the bad journal(s) be spray welded and remachined? Just a thought.
- Thu Aug 19, 2021 5:22 am
- Forum: Early model JD crawler technical support
- Topic: Dry in the head
- Replies: 7
- Views: 5376
Re: Dry in the head
The hole that is "far right" is probably for the sending unit for the hour meter. It was an option so if you don't have it the hole would just have a plug in it.
- Thu Jul 15, 2021 5:45 am
- Forum: Early model JD crawler technical support
- Topic: 420 crawler 1957
- Replies: 18
- Views: 18779
Re: 420 crawler 1957
Hi Kevin. You probably got your problem solved long ago but, just in case, I am in New Brunswick as well and went through a complete rebuild of my 40c engine, which is similar, several years ago. I had the work done at Engine Rebuilding and Supply here in Saint John. Total cost at that time was arou...
- Tue Jun 15, 2021 10:01 am
- Forum: Early model JD crawler technical support
- Topic: No. 61 Bulldozer?
- Replies: 7
- Views: 4949
Re: No. 61 Bulldozer?
Thanks again Lavoy. I took a look at the parts diagrams for the MC60 and my blade and Boom assembly are definitely the more rugged 61. The side bracket that the cylinder attaches to, I'm not so sure. The notch looks pretty rough cut so I think some parts have been made or modified by a previous owne...
- Tue Jun 15, 2021 5:59 am
- Forum: Early model JD crawler technical support
- Topic: No. 61 Bulldozer?
- Replies: 7
- Views: 4949
Re: No. 61 Bulldozer?
Lavoy. Thanks for the concern. If you can look at the parts sheet for the 61, the cylinder (don't think it's original) on mine is connected at the top to the Right Frame (J19422C) and at the bottom to the Lifting Frame (J19421C). The Lifting Frame is a complete assembly with arms on both sides conne...