Slide out smooth out, binding in.
2016 Wildcat 28SGX with Lippert frame.
Dining slide is the type that uses two rack and pinion gear sets on the extending arms coupled together to keep the slide out mech square as it extends and retract. Actual motive force is provided by either a lead or ball screw mechanism driven by a 12 vdc gear/motor assembly.
Extending out the system is smooth for the entire travel.
Upon retraction it bucks but can't tell if it is motor issue such a burned contacts on reversing relay or binding. It is just that it is so smooth extending I would not suspect binding.
We got it in by hitting the in switch while a buddy and I pushed the slide in. It still bucked like crazy.