(800) 853-2651
SHOP NOW

1978 John Deere 755 loader

B

Bobby livingston

New User
Hello
Sorry, for posting this again about my loader. but, I have a JD 755 loader that busted the left suction line on the transmission pump and now I can’t get the left track to move at all.
I put all new suction lines on and I bought the TW1137 manual so I could bleed the control valve the proper way using the clear hose from the control valve to the reservoir. I did what the manual said to do and what a couple of other members on here said to do. but I still can’t get the left track to move. I did notice the square manual control valve on the left pump stays cold when it’s running while the right pump side stays hot. Could it still be air in the system?
If anyone can help I would appreciate it.
Thanks
 
Check the driveshafts when it's running.. I've seen the rubber cushion inside the driveshaft separate and drive the front of the shaft but not the rear portion of the shaft. So that transmission isn't turning to make pressure. Gosh , I hated those machines.. Trying to make 2 separate transmissions to perform the same..
 
Hello Harley1970
Yes sir i did. I changed the transmission filters this morning and the pressure went from around 160- 210 to around 260-275.
The pressure is so much better but the left track still doesn’t move. The loader will run foreword and in reverse without locking down now but it still doesn’t move the left track.
Roy, a member on here said to check the left pumps drive shaft to see if one end has sheared the rubber inside on one end. I didn’t see anything that looked sheared on the drive shafts. both drive shafts were in identical positions on the pumps.
I don’t know what else to do.
Harley if you or (Roy) a retired John Deere man on this site could email me, I could send y’all my phone number through the email . If it’s possible, I’d love to talk to any old school John Deere mechanic on the phone about this loader ( [email protected] )
Thanks
 
You must log in or register to reply here.

Similar threads

N
New Holland T4.75 power star hydraulic problem
Replies
3
Views
332
Ncjim919
N
D
Ford 3000 Hydraulic pressure problem
Replies
6
Views
354
TheOldHokie
TheOldHokie
C
Follow up on the 4830 hydraulic pump
Replies
0
Views
108
Casey in Ky
C
R
John Deere 350C
Replies
8
Views
527
Dkc923
D
M
John Deere 1010 idler wheels
Replies
4
Views
438
Lavoy
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