Tractor Talk Discussion Board |
Re: B 50 Yanmar..HELP!
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Fawteen on February 05, 2004 at 02:16:56 from (216.204.104.49):
In Reply to: B 50 Yanmar..HELP! posted by Truck on February 04, 2004 at 20:16:00:
I don't have any experience with Yanmar excavators, but do maintain a Takeuchi TD25 which uses a Yanmar engine. I'd expect the overall layout is similar enough to make some assumptions. Ours uses 2 hydraulic pumps hooked directly to the crankshaft of the engine. The output of the pumps goes to the plumbing under the cab, with various valves to direct the pressure to the various functions. I don't know off the top of my head how the flow from the two pumps is divvied up, but it shouldn't be hard to figure by tracing the plumbing. My first suspicion would be that one of the pumps has failed, and you've lost power to the tracks. My second guess would be that a pressure relief valve has stuck open. Figure out exactly which functions don't work, trace the plumbing back (for instance from the boom cylinder to the associated valve) and figure out which pump or pressure relief serves that function, and go from there.
Follow Ups:
Home
| Forums
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]
Copyright © 1997-2024 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 |
|