Ok guys, my L345DT has stopped lifting unless it is at full throttle, all fluids are full. Even when it does lift it has very little power, would that be the hydraulic pump? I have looked at all the filters and they are clean. Any help would be appreciated.
L345 Not Lifting
- Thread starter kjrobinson
- Start date
No, FEL. 3 Point lifts slow also but I think that is the piston, I am going to rebuild that also.
Before
Dan
You need to do some diagnostic pressure tests before rebuilding or replaing anything.
Dan
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Ya, I was reading through the thread about hydraulics and it had me totally confused. I know, I need to get a pressure gage set up to test the pump, that would affect the 3 point and the FEL if the pressure turns out to be low wouldn't it.
So, after thinking about this I realized that I have the auxiliary pump off of my rear PTO that operates my FEL, either way I need to test the pressure coming into the controls. With that auxiliary pump used for the FEL, what does the main pump operate. Sorry, I am at a loss when it comes my tractor hydraulics.
If you hace a PTO pump it would operate the loaser and the tractor pump operates the loader. Normallt two totally separate systems.
You need to clarify what hydraulics you have and how its plumbed before we can give you reliable guidance.
Dan
Russell King
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Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Seems that typing on the phone got you a confusing post!
To @kjrobinson to clarify what does what :
The original tractor has a pump that is (probably) mounted on the engine. In its original configuration it only powered the three point hitch. It used the same fluid out of the transmission as the tractor gears used for lubrication.
When a Front End Loader was added at that time, it was often driven by a separate pump that was mounted on the tractor. This was most often on the front of the tractor driven directly by the engine crankshaft. There were also rear PTO driven pumps used but I see a problem with that on your tractor. The rear PTO is only active if it is in gear and the tractor clutch is engaged (not pushed down but up in the released position). So the tractor has to be out of gear to raise the FEL without moving the tractor, or you have to put the tractor in drive Nuetral, raise the engine speed lift the FEL then put the tractor back in gear to move it.
So if the three point is slow that is from the tractor mounted pump. That may be a dirty screen in the transmission or it could be the type of fluid in the transmission being too viscous to move easily but the former is more than likely the problem (dirty filter screen).
If the FEL is slow that is a problem with that completely independent system. Low on fluid (that is not the same as the tractor uses). There should be a sump in the FEL itself and is usually in the FEL tower near where the control valve is mounted. It could also be a dirty filter or bad fluid in that separate system.
Please post some pictures of the rear mounted PTO driven pump, the tractor mounted pump and the hydraulic lines that are on the tractor and the FEL.
In short, you may have two independent hydraulic systems to work on!