(800) 853-2651
SHOP NOW

800 ford won't lift grader blade

J

jlanza53

New User

Notice running slow over summer. Now, won"t lift at all. Tractor has been parked on slight incline headed uphill, about 10% incline.

After running for about five minutes and trying unsuccessfully to raise blade. Shut off and checked hyd fluid level. It is considerably above the full make with hyd cylinder extended in the down position Fluid appears very clean and very thick.

If overfilled, would this cause system to not work at all?
 
(quoted from post at 12:28:53 12/08/13)
Notice running slow over summer. Now, won"t lift at all. Tractor has been parked on slight incline headed uphill, about 10% incline.

After running for about five minutes and trying unsuccessfully to raise blade. Shut off and checked hyd fluid level. It is considerably above the full make with hyd cylinder extended in the down position Fluid appears very clean and very thick.

If overfilled, would this cause system to not work at all?
Click to expand...

Nope, probably need to overhaul the hydraulic pump.
You might get by just bleeding the air out of it. But, if it has air in the pump, it's probably because the seals are bad and the pump is sucking air.
 
Fill in the blanks please. How cold is it where your at?? You say thick oil which says you may have a seal bad between the transmission and or rear end which means the fluids mix and thick hyd oil does not work well if cold out.
 
Hi, Does it have the original vane pump or the
piston pump? I would first replace the inlet o
rings-at least in my day that is where the air
would enter. Inlet tubes on the vane or manifold
on the piston pump. When these need replacing the
pump will lose prime. Several posts lately have
described how to prime. Some put compressed air
in the dipstick hole and hold pressure till it
forces oil up into the pump. Chuck
 
My 700 had the same problem. I overhauled the pump and it did no good. Then I read where you have to replace the seal at the backend of the pump, behind the roller bearing. I didn't. I assume that is why it is still not working. The seal allows the oil to drain out of the pump back into the transmission. You know what they say. Live and learn.
 
You must log in or register to reply here.

Similar threads

M
64 Ford 2000 Hydraulic and transmission help!
Replies
1
Views
472
sunbeam
S
R
Ford 2000 Slow hydraulic lift
Replies
9
Views
2K
motzingg
M
J
Ford 851 Powermaster Hydraulics
Replies
1
Views
593
riveroadrat
R
B
Ford 600 hydraulic lift issues
2
Replies
23
Views
5K
BrittH
B
H
Ford 640 hydraulics won?t completely lift
Replies
3
Views
1K
Larry NCKS
L
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