Loader is broken!

creeper · Apr 6, 2005

The raise function on the loader quit on me tonight while moving a bale of hay.The curl function works fine and when you move the joystick to raise it is loading the tractor and you can hear a whine in the pump like the relief or something?Any ideas on what to check before calling the dealer or details on how the loader valve is piped would be helpful. Should I change lines at the quick connect to isolate? The tractor is a 790 with 419 loader and has had 1 pack of shims added to the relief.

Robert_in_NY · Apr 6, 2005

Check your couplers. Some times something happens and one pops off or at least loose enough that you have to grab it to notice it isn't hooked up. If that isn't the problem switch the lines to see if the curl function still works in the raise spot

Bird · Apr 6, 2005

When it sounds as if the engine is loading up, does one of the hoses move, appear to be pressurizing? I suspect Robert has already diagnosed your problem.

creeper · Apr 6, 2005

Coup;ers are ok.Anyone have a manual for loader or know the color code for the quick connect,which line is raise, curl etc. The piping is in a protective sleeve so I cant trace it.

frank_f15 · Apr 6, 2005

I THINK Robert put you onto the first thing to check.

PeterT · Apr 6, 2005

Maybe try a lighter bale of hay

Good luck PeterT

DJLX · Apr 7, 2005

Swap the bucket curl with the loader arms at the couplers to see if it is the loader or the tractor

butzkeg · Apr 7, 2005

It could be a problem with a coupler, but not where they connect. On either side of that coupler, there are some clips that hold a ball and/or spring in place. This seemed to pop off periodically on the 400 series loaders.

Happened to me once on a 430 loaded. I want to say it was the male end. Disassemble the quick connect, and there could be a ring of some-type, maybe like an e-clip that has popped out of place.

Good luck.

creeper · Apr 7, 2005

Couplers ok,switched lines and curl stil works. Im thinking I could have blown an internal seal in a cylinder or worse....bent a ram.????

hared1112 · Apr 7, 2005

I had the same symptoms on my 419 loader and it was in the coupler. The male coupler has a protruding tip that is spring loaded and is pushed backwards when inserted into the female coupler, thus allowing fluid to flow. The clip which held everything in place slipped off and the tip was no longer spring loaded, hence it didn't work right when inserted into the female coupler.