So how does that work, are you are on your knees under there or sitting?
It looks like they tilt as you go up on them.
first of it needs to be on level ground to work SAFELY .lol
And best if you have a concrete pad or asphalt to use on , dirt and grass yard is HELL on knees .
I have a 1/2" thick rubber mat under most of mine for now .
You sit on ground if its a low vehicle and on a cart or a rolling seat depending on lifted vehicle .
I used a furniture cart/dolly (its 6" off ground) to sit on to change trans in my stock 2000 Dodge 1500 Ram 4X4 on 31" tires .
Lift tilts ,With nothing on it it will sit in tilt position , like in lower pic with truck on it , if you leave the ramps latched . Latch is just a L-hook that slips over a bolt extended off frame .
Lift pivites on middle legs and when enough weight gets on front if sit down leval on the ground .
Loading a vehicle on lift is like doing a tilt table ,You ease in the thottle till you feel it nose down and ease on the drakes , you'll go down nice and slow . lol
Lift is 2 indivisual up rights with two 1-1/4" thick wall tubes (cross brace / width holders)that have a hold bolt on tube that the cross brace slides into . You can see rear cross tube in middle pic . Crosses are placed close to the legs .
If you need more info let me know .
I'll try to remember to do some measurements and drawings and a material list later If any one wants it .