Memories of a ramp rat.
The DC-10s had an infernal ULD restraint system which utilised a 'shutter bar', basically you loaded the cans (even numbers only) and after the last one was in you had to move the shutter bar to hold everything in place. This thing frequently jammed.
The Tristar had a remote controller to control the movement of ULDs in the forward hold. High tech back in the day even though it was still wired. I also remembered that the nosewheel steering bypass pin needed to be inserted way up on the nosewheel instead of down low. The pin was attached to a long pole (about 2-3feet).
Anilv