3pth no lift under load: Belarus  -- Other Tractor Brands Discussion Forum and Review 3pth no lift under load: Belarus -- Other Tractor Brands Discussion Forum

  parts   |   manuals   |   discussion   |   photos   |   podcast   |   reviews   |   specs   |   dealers   |   classifieds   |   contact   |   faq   |   myProfile   |   home          Login Now | Sign Up


FAQ:   What is a tractor?

Forum Index
New As Posted | Active Subjects



www.emerichsales.com - New & Used Equipment
          View Tractors For Sale!


www.partsbynet.com - Lawn and Garden Equipment Parts


Bernardsville Landscape Lighting
Click to Post a New Message!

Discussion Boards > Active Subjects > Messages as Posted > Belarus Forum

Page [ 1 ] |
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 06-23-2008, 16:03 Post: 154796
belarus250



Join Date: May 2008
Location: NE
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 30

2
Filter by User
 3pth, no lift under load

Under load (bush hog),3pth arms will not lift implement. Without load, arms go up and down fine. Just don't ask it to lift anything.

Pump good ( it has a loader that works fine)
Lift cylinder good ( I took lines off cylinder and put them on a remote cylinder will not lift them under load)

Page 86 Operators Manual, Hydraulic System Troubleshooting, 1st section.

Items 1,2,&5 check out fine.

Item 3 Bypass valve stuck, Remedy Clean, polish or replace pin valve.
My Question: Where is the Bypass valve ( exact location please)

Item 4 Pressure Relief Valve dirty,damaged, or out of adjustment

Remedy Clean, inspect or adjust as required.

My Question: Where is the Presure Relief Valve located (exact
location please).

I assume both these items are located on the hydraulic valve assembly that the selector levers go into. I need to where and how to get them out.


_________________
belarus 500 &250






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Technorati | Furl | Stumble This

 06-23-2008, 16:41 Post: 154797
Murf

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Dec 1999
Location: Toronto Area, Ontario, Canada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 7012

2
Filter by User
 3pth, no lift under load

Before you start tearing into the hydraulic system, I suggest a little more diagnosis.

I doubt it's the by-pass valve, if it was bad you'd have FEL problems too.

If the pressure relief valve is bad it will cause the same problem you are having, but so will a bad seal in either of the control valve or lift cylinder.

From what I recall though, the relief valve is isolated from the control valve and lift cylinder when the engine is off. In other words the 3pth is pilot valve protected.

If you can, put an implement on the 3pth and use something else to lift it, then shut off the tractor and see if it stays up on it's own or lowers back down.

Best of luck.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Technorati | Furl | Stumble This

 06-24-2008, 20:58 Post: 154817
belarus250



Join Date: May 2008
Location: NE
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 30

2
Filter by User
 3pth, no lift under load

Murf:

Good call. Arms held with weight. Some odd plumbing went on with the loader install. I chained the bucket and lift rams and the pressure then went to the 3pth. Will isolate loader.

Odd little duck, this tractor. Its no start situation was too much oil in the governor housing and a missing popet spring in the injector pump. Starts right up now and thumps away.

Thanks for your interest.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Technorati | Furl | Stumble This

 06-25-2008, 09:20 Post: 154821
Murf

TP Contributor

View my Photos

View my Photos  Pics
Join Date: Dec 1999
Location: Toronto Area, Ontario, Canada
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 7012

2
Filter by User
 3pth, no lift under load

AHA!!! Laughing out loud

It's the FEL control valve then, it's plumbed wrong.

Sort that out and the problem will go away.


Best of luck.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Technorati | Furl | Stumble This

Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] |

Discussion Boards > Active Subjects > Messages as Posted > Belarus Forum

Thread 154796 Filter by Poster:
belarus250 2 | Murf 2 |




Most Viewed

+ Belarus Hydraulic Problem
+ Belarus 250 tractor - starts but will not move
+ Changed over to 12 volt alternator
+ Belarus 250AS engine problems.
+ Belarus 420AN Electrical Schematic
+ Belarus Tractor starter problems
+ To Belarus or not to Belarus ?
+ belarus 825
+ Belarus Tractor torgue for head bolts
+ 1990 Belarus 250 Questions and Introduction

Most Discussion

+ To Belarus or not to Belarus ?
+ Belarus Nortrac 250A diesel le
+ Belarus 250AS Tractor axle rep
+ Belarus 250 tractor - starts b
+ Belarus 250AS Steering Broke H
+ air in steering?
+ Found my one part and looiking
+ Belarus Tractor torgue for he
+ Belarus turns over won't start
+ 12 volt wiring

Newest Topics

+ Belarus 420A - Problems bleeding Injection Pump
+ Belarus 420A - Problems bleeding Injection Pump
+ 562 steering locked
+ Lubricants
+ 825 Belarus three point hitch INOP
+ Rear hydraulic outlet-settin up hydraulic top link
+ Leda T30a Belarus shifter questions
+ Leda T30a starting issues
+ belarus 400 shuts down after running
+ Belarus 250as blowby













Turbochargers for Tractors and Industrial Machines
Cab Glass for Tractors and Industrial Machines

Alternators for Tractors and Industrial Machines
Radiators for Tractors and Industrial Machines

Driveline Components for Tractors and Industrial Machines
Starter Motors for Tractors and Industrial Machines