Properly inserted cotter ring.
Take one lanyard from the hardware pack and loop it
around the front square tube, putting one loop
through the other.
Get 1 detent pin from the hardware kit, and feed the
ring through the end of the lanyard.
Insert the "T" foots into the tube on the front and
back of your cart, then loop a lanyard around the
tube, and insert a detent pin, just as in the steps
above.