Mike
sorry to hear of your problems.
one question i have, when you are trying to attach the mower deck,
are you doing it on the lawn, in a flat area, so the deck does not slide
forward so easy? more common with 54 than 60 as it is heavier.
if attempting on driveway, blacktop, concrete, you will have problems
with mower deck sliding and not fully connecting.
did the dealer provide you with all the manuals? if so, you may want
to be proactive and read thru the installation part of the manual and see
if you can understand the installations and double check the adjustments.
i know one trick was to make sure the front yoke assembly, when installed on
the tractor, should not be tight in the groove, maybe 1/4 inch of play there, i have
been told that helps the deck latch better.
i think you will find many owners of these tractors wouldn't call their equipment
junk, and if you truly believe that, maybe you should consider another option
or brand. one reply was trying to help you but you didn't seem to want to
cooperate, so if you want help, listen to the help being offered. if you just
want to complain, there are other forums that might be better suited for that.