Search found 49 matches

by nelstomlinson
Mon Sep 13, 2021 12:55 pm
Forum: Late model JD crawler technical support
Topic: Where do you buy your parts?
Replies: 13
Views: 372

Re: Where do you buy your parts?

Here, then ebay, then local dealer as a last resort. The JD dealer in Fairbanks isn't bad, but isn't cheap and doesn't stock much for my old machine.
by nelstomlinson
Mon Sep 06, 2021 10:07 pm
Forum: Late model JD crawler technical support
Topic: 450c oil pressure falls to 5psi at hot idle
Replies: 7
Views: 308

Re: 450c oil pressure falls to 5psi at hot idle

I got the oil pump out tonight, and found that the drive shaft diameter is 0.0006 under the minimum spec. From memory I measured 0.6302, acceptable range is 0.6308-0.6312. I am not sure how to measure gear width, because they are 7 tooth. Sloppy clearances would keep pressure up when the oil was col...
by nelstomlinson
Tue Aug 31, 2021 11:27 am
Forum: Late model JD crawler technical support
Topic: 450c oil pressure falls to 5psi at hot idle
Replies: 7
Views: 308

Re: 450c oil pressure falls to 5psi at hot idle

There are two gauges, the factory gauge on the dash and an aftermarket one mounted nearby, and they give similar readings. I would like to have a good, reliable test gauge, where would I look for one?
by nelstomlinson
Mon Aug 30, 2021 3:30 pm
Forum: Late model JD crawler technical support
Topic: 450c oil pressure falls to 5psi at hot idle
Replies: 7
Views: 308

Re: 450c oil pressure falls to 5psi at hot idle

Thanks, Bruce. I had to pull the oil pump to get at some of the bits in there, but I didn't think to check the clearances while I had it out. I didn't check the cam bearings. Does anyone know if there is supposed to be a gasket between the oil pump and the block? I don't remember putting a gasket on...
by nelstomlinson
Mon Aug 30, 2021 12:38 pm
Forum: Late model JD crawler technical support
Topic: 450c oil pressure falls to 5psi at hot idle
Replies: 7
Views: 308

450c oil pressure falls to 5psi at hot idle

When the engine is started, idling oil pressure is about 20psi, at 2000rpm maybe 25psi. Once the engine is hot, the idling oil pressure will fall to around 4 or 5psi, around 15-20psi at 2000rpm when hot. Am I correct that this is too low? What is likely to cause this? Using fresh 15w-40 Rotella T4, ...
by nelstomlinson
Sat May 29, 2021 9:27 am
Forum: Late model JD crawler technical support
Topic: What will I have to remove to change a 450C brake band?
Replies: 8
Views: 1872

Re: What will I have to remove to change a 450C brake band?

Back to the original question: for future reference, is it possible to pull the steering clutch and brake band without breaking the track and removing the final drive?
by nelstomlinson
Fri May 28, 2021 10:55 pm
Forum: Late model JD crawler technical support
Topic: What will I have to remove to change a 450C brake band?
Replies: 8
Views: 1872

Re: What will I have to remove to change a 450C brake band?

That worked! It takes a 3/4" drive extension to remove the plug. On the right side of the machine, I pulled out that plug and the toothed adjusting nut was right there, easily accessible. I pushed the TOP of the wheel AWAY from me until it got harder to turn. On the left side, the side with the shif...
by nelstomlinson
Wed May 26, 2021 9:36 am
Forum: Late model JD crawler technical support
Topic: What will I have to remove to change a 450C brake band?
Replies: 8
Views: 1872

Re: What will I have to remove to change a 450C brake band?

http://jdcrawlers.lcent.com:8000/johndeere/albums/userpics/10050/normal_LoaderPipePlugs.jpg This is the left final drive of my other 450C. The left side of the photo is toward the front of the machine. I believe the pipe plug on the upper left is the one you're talking about? Looking in the manual ...
by nelstomlinson
Mon May 24, 2021 12:44 pm
Forum: Late model JD crawler technical support
Topic: What will I have to remove to change a 450C brake band?
Replies: 8
Views: 1872

Re: What will I have to remove to change a 450C brake band?

No, I didn't see anything to adjust inside in the manual. Where is this pipe plug? Can you point me to a manual page?
by nelstomlinson
Sun May 23, 2021 10:31 pm
Forum: Late model JD crawler technical support
Topic: What will I have to remove to change a 450C brake band?
Replies: 8
Views: 1872

What will I have to remove to change a 450C brake band?

I've adjusted the steering lever as far as I can, and I still have no steering brake on the right side. Pretty sure I'll have to replace the brake band. From studying the manual and the parts book, I think I can pull off the hydraulic reservoir, the fuel tank, and then open the top to get at the bra...
by nelstomlinson
Mon Apr 12, 2021 12:27 pm
Forum: Late model JD crawler technical support
Topic: Wire Mesh Filter
Replies: 11
Views: 2089

Re: Wire Mesh Filter

`` I have some of Peaceful Creek's reprints and I think they are pretty good and true reprints of the original manuals '' That means they are pretty weak efforts. `` Most equipment manuals for equipment are printed for the dealer mechanics who may have experience on similar machines or factory train...
by nelstomlinson
Wed Mar 24, 2021 2:00 pm
Forum: Late model JD crawler technical support
Topic: After market engine numbers location
Replies: 10
Views: 1844

Re: After market engine numbers location

Yes, thank you for updating this. It's really frustrating to start reading a thread and have it trail off with no resolution!
by nelstomlinson
Wed Mar 24, 2021 1:53 pm
Forum: Late model JD crawler technical support
Topic: 450C track loader hose replacement question
Replies: 13
Views: 2612

Re: 450C track loader hose replacement question

I know this is asking a lot, but if you can take some pictures of the process as you go it will help others.
by nelstomlinson
Thu Jan 21, 2021 2:48 pm
Forum: Late model JD crawler technical support
Topic: 450C "Milky" engine oil
Replies: 4
Views: 1652

Re: 450C "Milky" engine oil

I started down that track a while back, and found it was a HUGE pain in the rear to do that in frame. It is hard to drop the pan, it is impossible to drop the crank on my 450C loader because a frame crossmember is in the way. Since it's a loader, the arms are in the way when I'm working from above. ...
by nelstomlinson
Thu Oct 29, 2020 3:46 pm
Forum: Late model JD crawler technical support
Topic: search program stinks
Replies: 7
Views: 2107

Re: search program stinks

Try this search string in your favorite search engine:

450 steering clutch removal site:jdcrawlers.com/messageboard/

In duckduckgo that brought up some useful hits.