issues with john deere 855 with loader

[87duker]

i just got home with my new tractor to me. When i went to lift the loader the back part of the loader seemed to come out of the mount. I got off trailer and brought in garage and tried to get the taper plates in and tight but no matter how tight i get them seems like the loader pops back out when you start to move loader up and down. Any sugestions?

 

[RoyJackson]

The taper plates you wrote about are called wedges, BTW.
I'm thinking they might be too far in (preventing the loader masts from seating)...so, I suggest you loosen the two bolts (that hold the wedges in place) and lift the loader out of the receptacles entirely, then reseat it and then tap the wedges down and torque those bolts.
BTW, there are also two locking devices on the loader frame (you can reach them from the seat). Make sure you unlock them before removing the loader and lock them after the loader is seated in the receptacles.

 

[87duker]

i have tried taking them out getting seated completely couple times also disengaged the front locking and had loader off tractor and reinstalled and still same issue

 

[RoyJackson]

i have tried taking them out getting seated completely couple times also disengaged the front locking and had loader off tractor and reinstalled and still same issue

Then try adding a couple of shims between the wedges and masts...see if that tightens it up.
Those wedges might be worn out. If the shimming works, you can use them permanently or build the wedges up with weld.

My old Deere 670 had a #60 loader which also used those wedges. The loader was pretty solid in the frame receptacles but there will be some movement. How far do the masts pull up when you lift the loader?