They are simple enough to make (says he who was considering buying one himself :) if you have the gear. The basic layout is as follows (wish I had a pic but maybe you'll follow).
I'll leave you to determine the actual size of your block but it needs to be larger on the 'flat' sides than the gasket between the pipes and the touch control (probably obvious). The thickness is determined by the size of the pipe fittings you'll use (more on that later) but you want it as thin as possible (to minimise the distortion of the steel pipes) while maintaining adequate strength. You then need 3? holes for the mounting bolts to pass through.
Now the really important bit.
If you closely observe the two steel lines you'll see one slightly larger than the other. This is the return line, drill your bypass block straight through at this point (simple enough). Now for the other line. In line with the pressure line (the smaller of the two) and starting from what will become the touch control side of the block drill 1/2-3/4 of the way through your block. Now drill in from the nearest (or most convenient for later hookup) edge to meet up with your last hole. Then tap for the hydraulic fitting of your choice and install.
The supply line for your open center valve should be plumbed into the pipe plug in line with the pressure line on the original manifold (at the end of the steel lines) and the return line is plumbed into the block. You may wish to consider adding a pressure relief valve as your add on system is upstream of the one already in the touch control and so it would be possible to 'dead head' the pump (1100-1500psi would be suitable). Hope some of that made sense, Sam
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 - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[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.
