Our kitchen slide stopped and made a screaming noise while we were bringing it in. Our trailer has the Lippert through frame power gear system which is very common.
Pulling back the coroplast near where the manual crank is for the slide I pretty quickly found the motor.
Upon closer inspection I could see that it was missing a bolt that attaches the motor to the gear box. The screeching noise was no doubt gears that weren't engaged.
Pulling the motor and gear box off revealed the plastic gears were actually still in good shape but the missing bolt that attaches the motor had broken off in the aluminum housing. The bolts were too small to attempt using an ez-out so I decided to drill it out slightly larger and use a tap to rethread. Fortunately I had both the tap set and a matching 12-24 bolt of the right length.
Cleaned up and fresh grease.
Everything back together.
I ordered a replacement motor which was my first choice, and use the repair for a spare but UPS seems to have lost it enroute to its amazon locker box. I will definitely pick up another complete replacement down the line if it doesn't show up tomorrow before we leave. I also ordered a steel replacement gear in case the plastic gear ever breaks. I had that issue on a previous RV with a similar slide system.
Hopefully I won't need either and this was just a fluke. Going with electric slides and jacks vs. hydraulic was a decision we made when we were looking at new trailers. All in all this was an easy fix with basic hand tools. I also have experience repairing hydraulic system and it can be a mess.
Hope everyone has a great Holliday. We will be in Palo Duro State park campground in TX from x-mas through the new year.