Search found 593 matches

by Jim B
Sun Sep 29, 2019 8:29 am
Forum: Late model JD crawler technical support
Topic: JD 350c crawler steering problem
Replies: 14
Views: 339

Re: JD 350c crawler steering problem

If it is still on the crawler, there should be a metal tag on the front of the seat support panel. Here is a photo from a JD350 brochure with an arrow added pointing to the tag. I have seen a couple placed on the left side of the panel as well. The engine serial number tag should be on the right sid...
by Jim B
Sat Sep 28, 2019 5:54 pm
Forum: Late model JD crawler technical support
Topic: JD 350c crawler steering problem
Replies: 14
Views: 339

Re: JD 350c crawler steering problem

Andrew, Sorry you found out this way that you don't have a 350C as you thought. I think Lavoy has pretty much answered your basic question, it looks like you need to open it up. Lavoy can help you with manuals, if you don't have them. He can also supply parts, once you find out what you need. Send h...
by Jim B
Sat Sep 28, 2019 11:38 am
Forum: Late model JD crawler technical support
Topic: JD 350c crawler steering problem
Replies: 14
Views: 339

Re: JD 350c crawler steering problem

Andrew, Diesel or gas? Does it have a Reverser? Where is the shift lever located? If diesel, what does it have for a fuel filter set up? Two round metal filter elements (used on straight 350's and early B series) or one square glass one (used starting with the later B series machines). That might na...
by Jim B
Sat Sep 28, 2019 10:48 am
Forum: Late model JD crawler technical support
Topic: JD 350c crawler steering problem
Replies: 14
Views: 339

Re: JD 350c crawler steering problem

An excellent point, CatD8RII. I spaced that one. Perhaps andrewr will post his complete serial number and we can properly ID it.
by Jim B
Sat Sep 28, 2019 8:42 am
Forum: Late model JD crawler technical support
Topic: 450 STAIGHT oil pressure issue
Replies: 9
Views: 263

Re: 450 STAIGHT oil pressure issue

I don't know what is available for sources in your area. For the hydraulic gauge you can check your local hydraulic shop or go to eBay (or Amazon) and get a liquid filled hydraulic gauge there. I'd get at least a 3000 psi gauge for hydraulics, I think the JD manual calls for a 5000 psi gauge. 1/4" N...
by Jim B
Sat Sep 28, 2019 6:32 am
Forum: Late model JD crawler technical support
Topic: JD 350c crawler steering problem
Replies: 14
Views: 339

Re: JD 350c crawler steering problem

More specific details please. Do you have manuals for it and if so which ones? Have you gone through and done all the steering and brake adjustments in order and as specified in the manuals? Which side? What are the conditions inside the steering clutch compartment ( light rusting, heavy rusting, oi...
by Jim B
Fri Sep 27, 2019 4:13 pm
Forum: Late model JD crawler technical support
Topic: 450 STAIGHT oil pressure issue
Replies: 9
Views: 263

Re: 450 STAIGHT oil pressure issue

There is an oil pressure regulating valve. It should be accessed through a port in the right side of the front cover. You have posted in the past that you have a 450 service manual. You should find information on oil system, oil pressure checks, the pressure relief valve, and adjusting it, in the en...
by Jim B
Thu Sep 26, 2019 7:14 am
Forum: Late model JD crawler technical support
Topic: 450e
Replies: 1
Views: 126

Re: 450e

You say you rebuilt the HLR a couple years ago, what do you think it is and do you think you can get to it from your past experience rebuilding it? To me it sounds like it might be a bad seal(s) in the low clutch, which would require pulling the engine and getting into the HLR again. I first would c...
by Jim B
Tue Sep 24, 2019 6:52 am
Forum: Late model JD crawler technical support
Topic: 1988 350d dozer
Replies: 2
Views: 238

Re: 1988 350d dozer

Welcome to the forum. I don't have the capacities for you, hope fully someone will help you. I would suggest you send Lavoy an email at postmaster@jdcrawlers.com and ask him if he can supply an Operator's Manual for your machine, from the line he carries in his store. For reference the JD part numbe...
by Jim B
Sat Sep 21, 2019 7:21 am
Forum: Late model JD crawler technical support
Topic: 450e
Replies: 1
Views: 131

Re: 450e

From looking at the manual; it looks like you can access it from the top of the transmission, I have not physically done it. Do you have technical manuals TM1330OP and TM1330RE for your machine? Have you done the diagnostic checks in the manual? The more info you give of the problem, what you have d...
by Jim B
Sat Sep 21, 2019 6:24 am
Forum: Late model JD crawler technical support
Topic: 450e
Replies: 3
Views: 171

Re: 450e

The more info you give of the problem, what you have done for diagnostics and the technical info you have to work with; can help people help you better and avoid confusion of what you are working on. Is this a machine you got recently and found this issue; or is it one you have had for a time and th...
by Jim B
Wed Sep 18, 2019 5:18 pm
Forum: Late model JD crawler technical support
Topic: 450 c will stall out under moderate load when warm
Replies: 3
Views: 196

Re: 450 c will stall out under moderate load when warm

I would suggest doing the clutch valve adjustments and check pressures once you get the tech manual to go by. Doing the diagnostics and adjustments should eliminate (or at least minimize) just guessing what it might be.
by Jim B
Wed Sep 18, 2019 4:37 pm
Forum: Late model JD crawler technical support
Topic: 450 c will stall out under moderate load when warm
Replies: 3
Views: 196

Re: 450 c will stall out under moderate load when warm

It sounds like you are referring to the transmission in all this, not the engine, is that correct?. Does the engine lug down or does it run at speed but acts like the transmission is slipping? If you push against something hard like a tree does the right track stay driving, but the left one stops? W...
by Jim B
Sun Sep 15, 2019 4:12 pm
Forum: Late model JD crawler technical support
Topic: 450c track master pin
Replies: 5
Views: 315

Re: 450c track master pin

The interference fit between the pin and pin holes in the rails hold it.
by Jim B
Sat Sep 14, 2019 2:53 pm
Forum: Late model JD crawler technical support
Topic: 450C Steering
Replies: 5
Views: 305

Re: 450C Steering

Confirm the steering clutches are working properly by pulling the left steering lever, just enough to release the steering clutch, while pushing against something solid. Does the left track stop turning without the brake and the right one keeps driving? Do the same (load it so you can tell the clutc...