Solution:
Using the following procedure, adjust frames to remove looseness in mounts or to allow front frame to engage bracket.
Detach loader from tractor.
Loosen rear frame hardware and rotate top of mounting frames toward rear of tractor.
Tighten hardware to specified torque.
Install loader onto tractor, allowing loader mast to rotate rear frames as loader rotates into position.
If masts remain loose on frames, repeat procedure, loosening hardware at mast arm to front frame connection to allow masts to rotate further on rear frames.
Additional adjustment may be obtained by enlarging rear frame bolt holes to 19 mm (.75 in.).
Also, slots in front latch AW29199 or AW29755 (depending on loader model) may be elongated toward rear of loader to allow further rotation of masts on frames.
If loader is still loose, a shim kit is available to tighten it up further. part numbe AW32306.