# RV Slide-Out Mechanism Repair in Chino > OCRV Center diagnoses and repairs the drive mechanism behind a stuck, grinding, or crooked slide, covering Schwintek rack-and-pinion, Lippert in-wall, Power Gear cable, and BAL hydraulic systems, all in our Yorba Linda shop. When a slide jerks, racks unevenly, or trips its controller, the fault is almost always in the mechanism that drives the room, not just the seals. OCRV Center identifies which system your coach runs, tests it under load on the bench and in the wall, and rebuilds the rack, cable, rail, or hydraulic drive so the room runs square and synchronized again. ## Mechanisms we service Slide rooms are driven by very different hardware depending on the manufacturer, and each fails in its own way. A Schwintek system walks the room on toothed nylon racks driven by motors at the top corners, while a Lippert in-wall system uses a worm gear on a vertical tube. Power Gear and BAL designs pull the room on synchronized cables or hydraulic rams. We work on all of them in shop. Correct repair starts with correct identification. We confirm the drive type, inspect the rails and guides, and check that both sides of the room are timed together before any part is replaced, so the room is not forced out of square by one side leading the other. - Schwintek rack-and-pinion drive teardown and rebuild - Lippert in-wall worm-gear assembly service - Power Gear and Accu-Slide cable system retiming - BAL hydraulic ram and through-frame drive service - Rail, guide block, and bearing replacement ## How we diagnose a failing mechanism We extend and retract the room repeatedly while watching amperage draw and listening for the bind point, which tells us whether the room is fighting a worn rack, a dragging rail, a seized gearbox, or a room that has dropped out of alignment and is loading the drive unevenly. Many slides that owners assume need a new motor are actually binding because a rail is bent or a rack tooth is stripped. Once the cause is isolated, we repair the actual fault, retime both sides, lubricate to the manufacturer spec, and run the room through full cycles to confirm it seats and seals without overdrawing current. - Amperage draw test on each cycle to find the bind - Rail straightness and guide-block wear inspection - Controller and limit-switch verification - Both-side synchronization (timing) reset - Full-cycle test under load before release ## Frequently asked questions ### My slide grinds and stops partway out. Is that the mechanism? Usually yes. A room that stalls mid-travel is most often a worn rack, a dragging rail, or a drive that has lost synchronization between its two sides. We run the slide while reading amperage to find exactly where it binds, then repair that part rather than guessing. ### Do you work on Schwintek and Lippert in-wall systems specifically? Yes. We service Schwintek rack-and-pinion, Lippert in-wall worm-gear, Power Gear and Accu-Slide cable, and BAL hydraulic drives in our Yorba Linda shop. We confirm which system your coach uses before quoting any parts. ### Why does one side of my slide come out faster than the other? That is a timing or synchronization problem in the drive, and running it that way can rack the room and damage the seals and structure. We reset the timing so both sides move together and the room sits square in the opening. --- Source: https://oc-rv.com/services/slide-out-mechanism-repair/ OCRV Center, 23281 La Palma Ave, Yorba Linda, CA 92887. Phone (949) 799-3387. In shop only; insurance billed direct.