4-Post Lyft safety

[C2 Turbo]

Hey Folks,

Just had this Challenger 4 post installed and on a test attempt, the button to raise the lyft got stuck and it kept moving up.


Luckily I was quick to realize it and pulled the lever down which though stopped it but scared the **** out of me.

The Installer looked at the motor and said everything was fine and it was just a freak accident

So question is, how can one prevent this from happening again? Has anyone heard of Limit switch?

 

[flyt100]

I had mine stick on once, and it was basically a clearance issue in the button (if you pressed it a little to one side it could bind). I bent part of the button system a little to take care of it, but the lift manufacturer was quick to mail me another so I swapped it out.

If you put some side load on the button when you press it, does it stick? Might just take a small adjustment to the switch...

 

[Cougar]

Others have installed an E-Stop in the circuit.

 

[59 wagon man]

had that happen once and jiggled the button. another time till i realized what was happening i just grabbed the down lever and held it till i realized to wiggle the button

 

[Tim C]

I've seen it before on many different brands of lifts. I like to install a disconnect switch just above the motor so I can kill power if it happens. I also use it to kill power once lowered on the locks if I have a jackstand under the hitch on a pickup for example. It keeps me from getting in a hurry and letting the rack down without removing the stand.

The lifts at work have these disconnects, like an outside AC unit or hot tub would have. It looks like a breaker but it's actually a switch. My home lift has the disconnect with the side lever so I don't have to open the box.

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[Hagasan7]

Nice set up! How high is your ceiling above the 4poat?

 

[C2 Turbo]

Others have installed an E-Stop in the circuit.

E-stop?

I like to install a disconnect switch just above the motor so I can kill power if it happens. I also use it to kill power once lowered on the locks if I have a jackstand under the hitch on a pickup for example. It keeps me from getting in a hurry and letting the rack down without removing the stand.



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Yes I am already looking into it

Nice set up! How high is your ceiling above the 4poat?

Thanks and the ceiling is 13.3"

 

[flyt100]

Another option is to wire two buttons in series, which would require pressing both. The chance of both sticking is slim...