|
Tractor Talk Discussion Board |
Re: 9 N Three point hydraulics
[ Expand ] [ View Replies ] [ Add a Reply ] [ Return to Forum ]
Posted by Don Q on September 21, 2006 at 16:55:27 from (12.77.46.201):
In Reply to: 9 N Three point hydraulics posted by Brent Frank on September 21, 2006 at 14:19:35:
Brent: do some diagnostics first, and then report back for more ideas. This is pretty basic Red Belly repair.........
Pump in the bottom, lift cylinder up top. There's a metal pipe running between them. If you pull a side cover and see a fine atomization of spray when the lever is in the 'UP' position, you have a leak in that pipe. Or perhaps the pump or one of it's components might be failing, like the pressure relief or pressure control valve, or maybe the pump is functioning just enough to lift it's own weight and no more, and then you need a pump overhaul, which is pretty easy.
Or maybe everything is working fine other than the lift cylinder is worn, in which case you need a new piston and rings up top, or piston and 0-ring if you go with the more modern NAA cylinder.... Again, an easy job.
A hydraulic pressure guage, plumbed into one of the aux ports, will tell you how much pressure is actually getting up top to the lift. Off the top of my head, it's something like 1600-1800 psi for a good working 9N.....might be low w/ that figure..
Are you using heavier oil or lighter hydraulic fluid? The system is designed for a heavier, 1939-era oil, and a lighter fluid in a worn system will conk out first.
Do some diagnostics first, and somebody here will help you through it...
Replies:
Home
| Forums
| Order Support
Today's Featured Article -
Tuning-Up Your Tractor: Secondary Ignition Wires and Distributor - by Curtis Von Fange. In our last episode we spent the entire day checking out the spark plugs. Is that efficency? Actually, it took more time to explain than it really did to do the inspection. At any rate we decided that a compression test was in order so we could verify the internal engine status. That way we wouldn't buy any tune up parts until we were sure that the engine was in reasonable mechanical condition. Our tests showed a fictional compression reading of 85, 80, 82 and 86 psi. That is well within a
... [Read Article]
Latest Ad:
1958 FORD RARE 4x4 801 TRACTOR, ELENCO/FRONT DRIVE, FRONTLOADER AND WEIGHTED REAR WHEELS, FIVE SPEED, LIVE PTO, GAS ENGINE, NEW REAR WHEELS AND TIRES, ENGINE RUNS.
[More Ads]
Copyright © 1997-2026 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 HeadquartersWebsite Accessibility Policy |
|
