Bedroom slide breaking shear pins

Rick Jay wrote:
I will concur, there are no limit switches used in the system. I examined the PC board of the slideout controller and see no circuitry that will remove current to the motor when it stalls. The motor apparently will stay powered until you release the switch. IF there is any type of limiting, it's done at the motor (internally, as there is no external component/circuit used), but I don't think that is likely.

A GBM slide operation manual specifically states:

"Press the Switch labeled ‘OUT’, and hold it until the room seals against the inside wall. The slide-out can also be stopped at any time during its travel cycle by releasing the switch. Caution: do not over-extend the slide-out to the point that the wood trim around the edge begins to flex."

So that doesn't sound like any limiting is being used.

Again, I have the same system on my rig and never had a problem with shear pins. In fact, until I had to replace a motor (due to a broken mounting boss), I didn't even know there were shear pins on the gear.

It really sounds like the OP's problem stems from an improperly spec'd shear pin.

~Rick