Landing gear

Yep. I used to same the same thing when I first started driving. It was always the yard dog's fault
Now I dont touch landing gear except one door that is in the back and downhill then we have to crack the landind gear all way down to make trailer sit high. Then we pull it out we have to crank it up to put it at normal height.

 

Its always easier to lower the gear, than it is to raise it.
Some older trailers,the feet of the gear, may have slop, between the post, lowering the trailer, beyond the intended height, not to mention, parking on blacktop.
I always crank my landing gear, firmly to the ground, then lower air bags, and pull out from under trailer.
The next driver needs to get out and look at their king pin gap, before hooking up..but they will never have to crank. 45000 pounds up, to hook their trailer.

 

The truck they use when cre or swift, loses a trailer?

 

Those are rgn ramps. Rgns do not have landing gear, they sit on the ground. There isn't a trailer with landing gear that's too low for rgn ramps. Notice the ramps start almost at the same height the wheel hubs are?

 

Dad always had those ramps on "his" truck . Could get trailers knee high! Would tell you in a heart beat , "I can make this thing kneel , but I can not make it jump"! If I can get the end of the frame rails under it I can get it.

 

RGN ramp trucks can hook to any low boy. Some have rollers some don't. There are also non detectable equipment trailers that are winched up onto the truck.