Yesterday's Tractor Co. Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Crawlers, Dozers, Loaders & Backhoes Discussion Forum

Re: D6 9U question

[Show Entire Topic]  

Welcome Guest, Log in or Register
Author  [Modern View]
Billy NY

02-06-2014 07:48:02

Report to Moderator

Can you get the serial number off it, photos, then post back here ?? Might be able to tell then or by looking if its a oil bath clutch, post '53 or so tractor,somewhere that was changed to standard from the dry clutch.

I would say it could be a few thousand, thats just based on ones I have seen, an exceptional tractor with a good undercarriage, oil bath clutch, direct start or starting engine, no final drive or major component problems, "could" and I say that lightly, fetch more. The 9U was a well built reliable tractors, with one of or the highest production run in that era, they made a lot of them.

What would be handy if you could source one is a Caterpillar track gauge, its a hand held template that you can place on all the various components and visibly see how much its worn, and compare against what was new. Other wise you will have to measure and then compare against new.

I won't venture to guess about the steering, I'm a little familiar with the brake bands on my earlier era D7's not sure, especially if this is a later 9U with oil bath clutch how that is arranged.

With track tension, I know later tractors, or sometime in the 50's they switched from the old style which required a big wrench, and often times cleaning and soaking those threads to get it to move to a grease type, not familiar with that, not sure if the 9U or later 9U has that.

I included the link for one site that had a description on how to measure an undercarriage, the photos are gone now, do some research on the net, youtube or similar, you may find something, lot easier to post a link to something like I did then to try and explain it, but know that eyeballing the components is a mistake, to determine actual wear. Rail height, and if the pin bosses are hitting the bottom roller flanges, sprockets worn to a sharp point, can be seen, so you can suspect what is worn sometimes, but it should be measured to be sure if nothing like that stands out.

YOu can dip a magnet in the final drive compartments, see if there are metal flakes or bits of metal, if this has bellows seals, finals can leak oil and what can get out, can get in, they can leak from age or lack of use. Not sure if those changed from older tractors, they were common for years, also you can pry against the sprocket to see if there is any play, if so, that can be a problem or indicate something may be wrong, you don't want to run them like that. These were referred to as bullet proof tractors, so if its sound, could be a nice find.

Starting engine is nice for cold weather starts, make sure to get that, if were mine, because of where I live, it would go back on. These like clean fuel, hot spark and clean oil, some were known to have the carburetor leak down fuel and contaminate the crankcase oil, not sure with the horizontal opposed piston type engine on this, but do be aware, pull the dipstick, check for thinned or contaminated oil, change immediately if so. These when in proper tune and within wear tolerance, (good compression) will fire and run nicely, and you have almost unlimited time to start that diesel. The advantage is, the coolant warms up, (some of these have to have the diesel engaged to circulate coolant to the starting engine, if not you will overheat it, I forget if that one is like that)oil is warmed and circulated, oil pressure is built up, all before it fires, essentially conditioning the engine to fire in cold temps and have oil pressure before it fires, I am pro starting engine, my D7 will start with the handcrank if everything is maintained and in tune, magneto needs to be firing a good blue spark, and timing set right, spark adavance. Most of the reason why people get fed up with them is because they do not take care of them, these were designed for a reason, and I think should stay with that era tractor, more so if operating in cold temperatures, I need no ether to start my D7 in bitter cold, it will and has fired up at close to 0 deg F, direct start would be a pain with an engine that may have some wear. Just some thoughts, there are some folks here who forgot more than I'll know about these, that participate here. I'm sidelined today, skinned my knee but good yesterday, on the injured reserve list today.

PS - undercarriage parts availability, I am not sure if Berco, or even CAT offers any parts, depending on what pitch, and what conversion might be available, OEM or aftermarket, it was high production tractor, and later series may be compatible, older D6's were offered in 2 gauges, 60" narrow, and 74" wide, (measure from center of track to center of track) and now I am realizing the 8U would be the narrow gauge and the sister to that 9U, so that gauge changed after the 9U and 8U series. Other parts may be available through the Cat classic parts line, salvage and similar. The manuals you need must correlate to the serial number runs and are title as follows, Operators Instructions, Serviceman's Reference Book and Parts Catalog, best ones are good used OEM and I will bet you will see a bunch listed on ebay, its where I have found books for everything I own, most of which is old junk, LOL well not really, but you get the point, older but functional.

Good Luck with it if you get it !!!!

Hope this helps!!!!

[Log in to Reply]   [No Email]
Brian Bell

02-06-2014 08:24:37

Report to Moderator
 Re: D6 9U question in reply to Billy NY, 02-06-2014 07:48:02  
I've asked for more pictures and SN, especially of undercarriage.

[Log in to Reply]  [No Email]
Billy NY

02-06-2014 11:23:34

Report to Moderator
 Re: D6 9U question in reply to Brian Bell, 02-06-2014 08:24:37  
Another thing I noticed, is the blade description may be incorrect, I have a 7A blade on my D7 and it has manual angle only. I am not aware of the S series blades from that era in this case a 6S if I am correct, that has tilt or angle, its straight blade with push arms to the trunnions on each side of the track frame, the A series blade is a C frame and has movable braces that you unpin and relocate to angle, mine you cannot tilt. Now maybe there is more to the photo that I cannot see. The older WWII era tractors that had LeTourneau power control units with knock down and or tilt and angle blades you could see the sector gear looking like hardware on the push arms for tilt and the rings for moving the braces to angle, maybe its me and I am mistaken, but I do not see it in the photo, I stand to be corrected,

[Log in to Reply]  [No Email]
Billy NY

02-06-2014 08:55:27

Report to Moderator
 Re: D6 9U question in reply to Brian Bell, 02-06-2014 08:24:37  
She's not a bad looking D69U, it may have been reasonably well cared for, some things point that, original tools, often lost, my point is it may not have been in a contractors hands and put to hard use since day one. But, thats speculation,

That right track does have some sag, pads are covered in mud or I can't see the grouser bars, but if there is that much sag, and no adjustment left, you will need to do some undercarriage work, if so I'd stay around scrap price, if not and its in good enough condition to use, I can't say thats an unreasonable price. That tractor should be 12+ ton, maybe more with the S blade and that winch, I'd like to see closer shot of the winch, it looks like a Caterpillar Cable Control Unit, I thought Hyster's were embossed with the name Hyster on the sides, maybe I am wrong. If its a CCU, it is not a winch, the line speed is too fast and not suited for a towing winch, its for controlling and operating cable controlled equipment such as a cable operated dozer kit, or a tow behind scraper or other similar equipment, so depending on what you intend to do with it, that could be a nice set up if you could find said equipment to go with it, the weight of it may balance the tractor better too. You will want to check it thoroughly, I really enjoy seeing these old caterpillars, especially when they can be repaired for use on a farm for part time work or to have as needed for use on ones land.

Do realize that final drive work does require special tooling to disassemble, parts can be costly so it would also be prudent to insure its mechanically sound,hopefully it is !

[Log in to Reply]  [No Email]
[Show Entire Topic]     [Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). Expedited shipping available, just call! Most prices for parts and manuals are below our competitors. Compare our super low shipping rates! We have the parts you need to repair your tractor. We are a company you can trust and have generous return policies. Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ About Us ]

Home  |  Forums

Copyright © 1997-2018 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters