450 Crawler Question

[Charlie]

Hi

what is the difference between a 450b and a 450c? I have a 450c and having trouble replacing the hydraulic hose in the lift arm channel, Can't seem to get to the fittings. Is there a special tool I need? Thanks for any help.
Just found this sight a few days ago

Charlie

[srs_mn]

Externally I don't think there is any difference... the major difference was the 450C models had "wet" steering clutches and brakes...
Yes, some of the hydraulic fittings are tough to get at... sometimes you have to remove whatever is in the way or make your own special bent wrenches... using strong language always worked for me.
srs_mn

[Charlie]

Hi srs_mn
Thanks for the reply. I might have to look up some new words to use, I have used all the strong words I know and it hasn't helped much. I thought about using a torch to cut the side out of the casting and then reweld it after I replaced the hose, or remove the hard pipe thats inside the upright and run the hose all the way back to channel where the first hard pipe fitting is located.

Thanks again Charlie.

[wwattson]

That's where my time working for the US Navy on nuclear submarines comes in handy. I already had learned a useful set of words appropriate for crawler maintenance.

[Charlie]

Hi
I was an electrician in the repair department on the uss Bushnell and worked on the older Subs for 2 years, but I guess I should have taken better notes.

Charlie

[Tigerhaze]

Hi Charlie-

We were just discussing the differences between the 450B and 450C series in a thread a couple of weeks ago. Besides the "wet" clutches, the "C" series also had a turbo engine. You may want to search a month or so back and find that post- Digitup provided the info and it was pretty useful.

[wwattson]

Got so interested in the colorful language discussion, I completely forgot to post the following link. This is a great collection of spec sheets on a large amount of equipment.

http://murphyused.com/specs.php

[K LeClair]

Ive seen 450B's with a turbo on them!!!!

[Tigerhaze]

We need to find that post- I think someone stated that the very late serial number 450Bs had wet clutches and turbos but that they were the exception.

[K LeClair]

Yes,I think your right.I have also seen 450B's with just a forward/reverse reverser lever on the left side (like a 350B,C,D) and also some 450B's with high/low/reverse lever and gear shifter on the left side.This would be seen on all 450C's.Again it must be late serial number B's only. Keith

[digitup]

I think the Phrase is turbo built engine .There were 4-239Ts built turbo and 4-239s built naturally aspired and both were used in Deere dozers at that time .Big difference is in the combustion chamber and crank bearings also I think small differences included high volume oil pump and Stellite valves in the head .Digitup.

[digitup]

Also remember that 450Bs and Cs were being built at the same time for a while 450B ended at s/n 207556 in fall of 1976 and 450Cs started in late 1974 at s/n 191829 then full production in 1975 at s/n 219516 also the 450B was 4-219 engine and the 450C was a 4-239T engine The 450Bs average weight was 13501 lbs and the 450C s average weight was 14172 lbs A bit of extra iron in there some place.Average list price went from $18000 to $48000 so you paid extra for the little bit of weight and big $ for inflation as well .Digitup.

[Stan Disbrow]

Hi,

As I recall, there was also a 450BE, where the 'E' stood for economy, that had a gear tranny and a hyd direction reverser in place of the HLR.....

You know, Deere loves to do things like that. I think it's just to confuse us!

Stan