I believe your slide system is a Swintech ? not sure of the spelling
But that system sold by Lippert ( LCI ) has a number of issues . If you got to the Lippert web site , you'll find instructions and videos on adjustments and repairs for the slide drives .
It would appear that the company may have changed the name to " In Wall Slide Out". See if the pictures match what's on your RV.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.