trim spring

Hi Guys, I posted this on the maintenance section but I thought about asking it here too: Is anybody here familiar with the functionality of the TRIM SPRING slider/lever on a C414? I have posted the pictures on another post in the maintenance bay forum. Thanks

Hi Guys, I need your help identifying something: In a C414 I started flying, there is a lever or slider right between the two front seats labeled "TRIM SPRING" (I think). See the attached pictures. There is no mention of what this is in either the POH or the Simcom manual. I've asked the...