Search found 1312 matches

by Jim B
Mon Feb 15, 2021 7:08 pm
Forum: Early model JD crawler technical support
Topic: John Deere 420c steering clutch adjustment
Replies: 59
Views: 1755

Re: John Deere 420c steering clutch adjustment

Ok. New, used, adjusted or not has gotten mixed between the engine and steering clutches here. Engine clutch is new with new pilot and throwout bearings as I understand you now. Finger height could be off if it was not adjusted to the set gauge. The new pressure plate should have just one coil sprin...
by Jim B
Mon Feb 15, 2021 6:10 pm
Forum: Late model JD crawler technical support
Topic: 350C steering brake band
Replies: 11
Views: 510

Re: 350C steering brake band

Using the Technical manual TM1115 for the 350C, have you checked, and made where needed, every steering and brake measurement/adjustment, on both sides, in the order laid out in the manual? If not, I would say start by doing that, not just going by the looks and feel of things. I believe the wet bra...
by Jim B
Mon Feb 15, 2021 5:22 pm
Forum: Off-topic discussions
Topic: Just a little taste
Replies: 10
Views: 476

Re: Just a little taste

I feel lucky (saying that should change things). We've only had a few mornings below 0F so far this year and the days have gotten up into the low teens at least. Wind chills have been a bit rough at times. Right now its +28 and spitting snow at times. Snow, sleet, possible rain and Icing expected th...
by Jim B
Mon Feb 15, 2021 4:58 pm
Forum: Early model JD crawler technical support
Topic: John Deere 420c steering clutch adjustment
Replies: 59
Views: 1755

Re: John Deere 420c steering clutch adjustment

Besides what Lavoy posted, I'd say if run with no free play, I would expect the clutch disc is worn, or burnt/glazed, as well the pressure plate. I would expect to be replacing clutch disc, pressure plate, throwout and pilot bearings, and adjusting with the JD7 gauge. When doing the clutch, look for...
by Jim B
Fri Feb 12, 2021 7:38 am
Forum: Late model JD crawler technical support
Topic: jd crawler HLR adjustment
Replies: 3
Views: 376

Re: jd crawler HLR adjustment

I don't have that one to look through. Strange, but not uncommon there is no info, or it may be buried in a section on something other than transmission overhaul. It appears the early 450Bs had that same shifter set up. There is some info about adjusting both shifters in the 450B manual TM1033. Ther...
by Jim B
Thu Feb 11, 2021 6:17 pm
Forum: Early model JD crawler technical support
Topic: 440 icd
Replies: 6
Views: 462

Re: 440 icd

Just some thoughts, in case no one comes along with a 440ICD schematic for you. Do you have the parts book for your 440ICD? It shows the fuses, breakers, gauges, and switches/sending units you should have. (Here is a link to the one on line if you don't https://partscatalog.deere.com/jdrc/navigation...
by Jim B
Thu Feb 11, 2021 10:35 am
Forum: Late model JD crawler technical support
Topic: jd crawler HLR adjustment
Replies: 3
Views: 376

Re: jd crawler HLR adjustment

Having to wiggle it to find neutral sounds like wear/play in the linkage. Check all pins and joints. The turnbuckle would be the adjustment point, if it is the only adjustable place in the linkage. What book do you have?
Jim
by Jim B
Thu Feb 11, 2021 9:32 am
Forum: Late model JD crawler technical support
Topic: What year 450 do I have?
Replies: 1
Views: 226

Re: What year 450 do I have?

Welcome The E7450 number is just for the loader attachment. The loaders had separate model and serial numbers from the crawlers, during those years. The engine number is good to have but won't work either to get the year either. On a straight 450 the crawler serial number tag you need the numbers fr...
by Jim B
Wed Feb 10, 2021 9:10 pm
Forum: Early model JD crawler technical support
Topic: 440 icd
Replies: 6
Views: 462

Re: 440 icd

There's one in this post that might help you. viewtopic.php?t=1816
by Jim B
Mon Feb 08, 2021 11:55 am
Forum: Early model JD crawler technical support
Topic: Crawler 420 not starting...and worse
Replies: 35
Views: 1219

Re: Crawler 420 not starting...and worse

Is this still a 6 volt positive ground system with generator and the saddle mount starter switch on the starter? Is the wiring correct for a 420 or has it been modified? Things get changed over the years and I just want to be sure of what you have before guessing at what it is.
by Jim B
Sun Feb 07, 2021 11:04 am
Forum: Early model JD crawler technical support
Topic: John Deere 420c steering clutch adjustment
Replies: 59
Views: 1755

Re: John Deere 420c steering clutch adjustment

Lavoy, someone will correct me if I'm wrong on this. I see the adjustment of the pressure plate fingers as setting them at the proper starting height to get the maximum clutch life and adjustment as the clutch wears. As the disc wears the fingers get higher. This explains why you have to adjust peda...
by Jim B
Sat Feb 06, 2021 11:58 am
Forum: Early model JD crawler technical support
Topic: John Deere 420c steering clutch adjustment
Replies: 59
Views: 1755

Re: John Deere 420c steering clutch adjustment

To your question about setting the pressure plate on the main (engine) clutch. Yes you could have an issue there if it was not set. At the time a disc and pressure plate are installed the finger height is supposed to be set with the JD7 gauge. JD7 is the same gauge used for the steering clutches but...
by Jim B
Wed Feb 03, 2021 5:25 pm
Forum: Early model JD crawler technical support
Topic: 420 fiber plates
Replies: 19
Views: 7455

Re: 420 fiber plates

The supplier is easy. Contact Lavoy by email (postmaster@jdcrawlers.com) or phone (701-361-1006 during central time zone business hours). His business provides this site for us to use.
by Jim B
Wed Feb 03, 2021 7:19 am
Forum: Early model JD crawler technical support
Topic: 2010 final brg. adjusting
Replies: 3
Views: 308

Re: 2010 final brg. adjusting

I am guessing you are talking about the inboard bearing on the axle shaft. the cap is visible when you are under the crawler. I can't say for sure if you can get it off in place and then make the adjustment or not. I will say you are there, hands on, to try it if you want. If it doesn't work out you...
by Jim B
Sun Jan 31, 2021 5:53 am
Forum: Late model JD crawler technical support
Topic: What year is my 350
Replies: 5
Views: 436

Re: What year is my 350

Yes, your crawler is a 1967 build by that number. Machine serial number tag breakdown using the 350 Introduction from the JD parts Catalog: SN = serial number T = Tractor 4 = JD350 E = Crawler - Loader 3 = Diesel D = (Transmission) Sliding Gear with Reverser Serial number: 047766 (This number falls ...