It comes with one.Hey the American flag must mean something, right?
There should be a mechanical stop (or the cylinder reaches end of travel - same thing) that just causes the motor+pump to run against the relief valve should the contactor stick. If not, it's an accident waiting to happen.Hey the American flag must mean something, right?
Friend of mine just got a Chinese lift... scary button to raise the lift... everything was just interrupting the coil side of the contactor (including the top limit switch). Wouldn't want the contactor to stick...
There should be a mechanical stop (or the cylinder reaches end of travel - same thing) that just causes the motor+pump to run against the relief valve should the contactor stick. If not, it's an accident waiting to happen.
Fun-spoiler!Now that the drama queens have it out of their system…..with any lift if you use it properly and drop it down onto the locks, there shouldn’t be an issue. Not saying it’s a quality lift or a good idea to buy, but no one is getting under a lift while in the act of lifting.
So all locks are created equally?Now that the drama queens have it out of their system…..with any lift if you use it properly and drop it down onto the locks, there shouldn’t be an issue. Not saying it’s a quality lift or a good idea to buy, but no one is getting under a lift while in the act of lifting.
I worked of a lift like that for a couple years. It had one lock, at all the way up. That was just over 6' from the bottom of the arms to the ground, and like 6' 8" to the bottom of most cars. I'm tall enough that I oculd use it, but a lot of guys weren't.When I think of the single post in-ground lifts in the Pep Boys shop worked at one summer ('78 I think) with the control levers against the wall in the aisle where we walked by...
Admittedly I'd make a comment about it's hard to stuff up something that simple but HF managed to do stuff up axle standsSo all locks are created equally?
I think caution is justified. I'd never use a lift like that
Problem occurs when the vehicle is taller then the lift or the shop, I stuck a pipe rack on a pick up truck through the heater duck one day when a contactor stuck on a Rotary lift.There should be a mechanical stop (or the cylinder reaches end of travel - same thing) that just causes the motor+pump to run against the relief valve should the contactor stick. If not, it's an accident waiting to happen.
That's an another problem; the same issue can happen due to an inattentive operator, of course. Another contactor, wired to latch close with various safety switches in the loop is how we used to handle this for robots... any part of the safety circuit opens, the power drops immediately. Might not be worth doing in this case.Problem occurs when the vehicle is taller then the lift or the shop, I stuck a pipe rack on a pick up truck through the heater duck one day when a contactor stuck on a Rotary lift.
I just added a electrical disconnect on the lift mounted to the post next to the controls.That's an another problem; the same issue can happen due to an inattentive operator, of course. Another contactor, wired to latch close with various safety switches in the loop is how we used to handle this for robots... any part of the safety circuit opens, the power drops immediately. Might not be worth doing in this case.