(800) 853-2651
SHOP NOW

806 hydraulic problems

A

Anonymous-0

Well-known Member
just bought an 806 from my neighbors. runs like a top but has hydraulic issues. it has no power steering or t.a. the pto works. not sure about the remotes yet(just got it home). when they used it they said the power steering wouldn't work in the cold but if it was brought in to the shop and warmed up it would.
i've been reading some posts, trying to familiarize myself with this system and how it works. if the pto and remotes work and the steering and ta don't is it the mcv valve or the power steering and ta pump?
now i haven't even serviced the tractor yet but before i put 20 gallons of oil in i thought i should try to address the underlying problem first.
are these pumps expensive to rebuild? are there any other things to look at first? relief valves?
orings? is the pump i need to look at behind the plate on left side of tractor behind ta linkage?
i'm fairly sure it's not filter or oil as they take very good care of their machines and they tried changing it a few times with no success
 
Before you start digging into the hydraulic pump you need to find out how the system functions when it is working. If the steering, brakes, and TA work OK at low idle when warm, then the pump is most likely alright. The most likely cause for your problem then would be an air leak on the suction side between the MCV pump and the hydraulic filter. It is very common for the O-ring between the clutch housing and the rear frame to become hardened and allow air to enter. If that is the problem, the simple way to work around it is to run the system about five gallons over full.
 
i asked the previous owner about this problem again and he said it's had this problem since it was new.
is there any chance something wasn't right from the factory?
 
We really need more information for more trouble shooting. If the problem is like I expressed in my first reply, it is possible that the O-ring was never installed when the tractor was originally assembled.
 
You must log in or register to reply here.

Similar threads

J
806 mcv /steering/ta clutch not right
Replies
7
Views
442
the tractor vet
T
B
806 MCV Pressures and steering part 3
Replies
4
Views
317
Bluegill2
B
S
656 aux hydraulic question
Replies
4
Views
216
Mrfred54
M
B
806 MCV Pressures and steering
Replies
6
Views
327
Bluegill2
B
G
806 steering issue
Replies
10
Views
625
Gweltzin
G
Tractor Parts Tractor Manuals

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.

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 Headquarters
Website Accessibility Policy

Back
Top