Stoll loader stuck wedges

[Jsmith2211]

Trying to remove the loader from the case this evening, damned slide wedge on the right hand side will not come back out of its hole. The lever goes up fine but won’t slide towards the front of the loader. The left hand one was fine. Any ideas? Have tried a punch in the hole and it won’t shift it, but I don’t think I have the right punch really.have beat on the lever till it starts to bend and it still won’t shift. Can I undo the bolt with an impact and a long extension then readjust afterwards? Hasn’t been off all winter and they’ve always been a bit stubborn.

 

[Jsmith2211]

Have tried grinding down punches to be the right size and even that won’t get the damned thing to shift, is there anything else I can try?