TZ25Da/10La loader

[mjonesnh]

Yesterday I was bush hogging for 3 hours non-stop. I stopped the tractor and let bucket down to take pressure of of loader while engine killed. When I restarted tractor I could not get bucket up without bringing rpm up to 2200, but my bush hog would lift with the tractor idling and my empty loader bucket will normally clear ground idling also.
Talked to service and thay say it could possibly be o-ring in pump blown letting fluid bypass. I remind them 3 point works like it should, service says different circuit to loader. They are supposed to do pressure check later today and let me know what is found.
All loader connection are external to pump and I cannot understand if the pump works for three point why it will not raise loader. I'm leaning toward the detent valve at the pump that diverts fluid to loader when joystick actuated or problem with joystick. Any ideas from someone with hydraulic experience?

 

[tractorsanmore]

The first thing you should check is the quick-disconnect fittings to make sure they are completely connected ( the ones on the loader )

 

[SacandagaBrad]

The first thing you should check is the quick-disconnect fittings to make sure they are completely connected ( the ones on the loader )

Definitely check all the quick connects. Even if they appear to be seated properly, often they are not. Relieve all the pressure, disconnect, wipe clean with a rag, and reconnect.

My TC24D 3PH lever linkage is a little out of adjustment right now. If the lever is pulled all the way back to the raised position, sometimes it is still trying to raise beyond the limit and tripping the bypass valve in the hydraulic system. When this happens, the FEL is very sluggish and needs some RPMs to get it to move at all. Try the FEL with the 3PH in the down position after you have checked all your connections.

I'll bet one of these scenarios is your problem (hoping, simple fix!)

Brad