You sure it's a '51 TO-20? they also made to-30's in '51. What's the serial number?
Nonetheless, the oil fill is on top of the tranmission shifter housing. The spec calls for SAE90W mineral oil in Summer and SAE80W in winter. Most people use a good Universal Tractor Fluid (UTF) the meets the MF specs. Some people use engine oil. It takes 24 qts (6 gallons) to fill the transhydraulic system and if you are draining the system there are three drain plugs on the bottom and you should let it drain overnight. It's wise to take off the right side access panel to clean the sumps if you can. If you pull the pto shaft(4 nuts) you can get access to all the sumps, spray some diesel or other solvent in and mop all the sluge out before you replace the fluid. (I would recomend using the tractor and draining the fluid while it is still warm.) When filling, replace all the removed parts and leave the bottom bolt out of the right hand access panel. Fill through the transmission port with five gallons of fluid and let the fluid equalize for a few hours. The put the last gallon in. Jeff(OH) has a sump cleaning method he has posted in the archives or in the TIP OF THE DAY so you might look that up.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[More Ads]
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.
