Whether or not the manufacturer steps up, that is a structural defect. As Nige said, its gonna need to be repaired on the inside as well. As long as the top and bottom plates are undamaged, repair should be possible. Just playing devils advocate for a bit. Are your pressures set to factory specs? If you invite the dealer to participate, you better believe they will look for "any other cause" abuse, oversized bucket, extended arm, attachment in excess of rated capacity. I'd make sure everything is on the money, then call em up. They don't want their name tarnished by something like this.
Then tell them ,"my Akerman wouldn't have done this."