We had a similar problem on our first 1121. I sprayed some chain lube on the tracks and, if I remember correctly, after a couple of tries the slideout fully deployed. I now regularly lube the slideout, on our newer 1121.
skipbee
2004 F350 Diesel CC SRW 19.5" Rickson W/T 4WD
2005 Lance 1121 well found.
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