Auto Reset Circuit Breakers
Have been told that the electrical motors on Lippert Stab jacks should stop when the motor current rises causing the 12VDC auto resetting circuit breaker to pop (or you take your finger off the button...
Forum Discussion
Chris Bryant wrote:
Those breakers are not meant to provide motor control- most rigs use electronics to limit the current to slide rooms- jacks are a different issue- you are expected to look and not run them to the limits. If they will break if run to the limit, they should have torque limiting clutches in them.
Using breakers as motor control means the OEM cut corners- bad design.
OK, so it could be electronics and/or torque limiting clutches in the motors instead of the breakers.
The trailer does have a Lippert electronic box that can provide power to these motors. I always assumed it was just a receiving unit with electronic switches controlled by the remote. But maybe the manual switches go to it also, rather than just run in parallel. And possibly the auto motor current cut-off is happening there?
The slide, stab jacks and awning motors can all be controlled by the remote control via this box (and lights). It seems to be an all Lippert system (ouch) as I believe even the Al-Ko RBW slide mechanism is owned by Lippert now.
As for the stab jacks, I've always retracted them until the motor cuts off automatically as it's very difficult to gauge just when to release the button, just like the slide. There's a time delay, if you don't get it fully closed you have to press the button again and again. I always felt that this repeated jerking was harder on the drive train and motor than just letting it go until it automatically cut-off. No?
