Iíve never had to work on mine but I will make a couple of suggestions.
1. I think it would be best to have the rooms fully retracted so most of fluid Is back into resivoir.
2. Once retracted push the extend button for about a second to release the pressure on the valves. You can feel this when you try to turn them. The valve will be hard to turn if a lot of pressure built up. By pushing the extend button for a short period will release this pressure but not move slide.
Let us know how it works out...pics would be great.
2016 Siverback 33IK, Towed 30K+ miles
2018 Ford F-350 Lariat 6.7L V8 Diesel 4WD Crew Cab
Andersen Ultimate Hitch
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