Long Tractor hydraulics: Tractor Engine Repair Rebuild  -- Tractor Maintenance Discussion Forum and Review Long Tractor hydraulics: Tractor Engine Repair Rebuild -- Tractor Maintenance Discussion Forum

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Discussion Boards > Active Subjects > Messages as Posted > Tractor Engine Repair Rebuild Forum

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 05-31-2002, 10:16 Post: 39214
RoyMartin
2002-05-31 10:16:10
Post: 39214
 Long Tractor hydraulics

The three point hitch hydraulics will not lift although the front end loader lifts fine. What should I look for and where?






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 06-01-2002, 05:05 Post: 39230
TomG

TP Contributor

Join Date: Feb 2002
Location: Upper Ottawa Valley
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 5406
 Long Tractor hydraulics

I've got to respond in general since I don't know the tractor. I'm assuming that the loader and 3ph had been working, no recent work was done on the hydraulic system, the lift simply stopped working and there is no movement without a load on it. I also assume that the 3ph or loader could be used without changing a diverter valve and that the loader valve assembly is a power-beyond type that has two return lines, and the 3ph is a position control type.

The easiest fix would be if one of the loader valves wasn't centred. In the type hookup I assumed use of any loader valve prevents the 3ph from working. I'd jiggle the loader valves and then check that the loader isn't creeping when the valves are centred and the tractor is at high RPM. I'd also check the diverter valve to make sure it's fully in the auxiliary system position.

Another fairly easy fix is if the linkage is not moving the control valve. The quadrant lever can be operated, and the valve control arm should move. On some tractors, the control valve spool valve end can be seen with minor disassembly. The spool must be depressed for the 3ph to lift. By the same token, the poppet valve must be released for lift to occur. Bent, broken or seriously out of adjustment could cause the problem.

A strong candidate for the problem is the unload valve. The valve is part of the control valve assembly. Initial pressure when the control valve opens causes the unload valve to close. If it remains open no lift pressure can develop. Unfortunately, there's no easy way to tell if the unload valve is stuck.

Hitches have there own safety relief valves that do cause lift problems if they fail. The failures I've heard of result in a 3ph that is extremely weak but does move slowly.

Hope this helps some. A couple of the suggestions might are easy enough and might fix the problem. I'm aware that other suggestions would take manuals and require a tear-down.






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 09-08-2002, 20:17 Post: 42155
jwfly



Join Date: Jul 2003
Location: Grenada, Ms.
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 2
 Long Tractor hydraulics

I am looking to find out how many horse power is a Long 2360 1996 model and the approx. value in good condition.






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 09-08-2002, 20:52 Post: 42156
DK35vince



Join Date: Feb 2002
Location: Western,Pa.
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 686
 Long Tractor hydraulics

According to machinerylink.com
Estimated average value
1996 Long 2360 -$6991 good condition
3 cylinder 35 HP,143 cubic inch.






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Discussion Boards > Active Subjects > Messages as Posted > Tractor Engine Repair Rebuild Forum

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