This is common, I am going to try and post a link to a lippert PDF that addresses this. It involves adding a hydraulic additive. They refer to it as anti stiction. Friend tried the Cat fluid and said it helped.
https://manuals.heartlandowners.org/...ng/Lippert/LIP 0295 - NOISY JACKS - Adding Anti-Stiction Fluid to LCI Hydraulic Systems.pdf