Originally Posted by progers
...My dealer cleaned all 4 levelers and treated with silicone... Also, I have seen some people recommend WD-40 instead of silicone. Which is the correct product?
A couple of years ago when we were having trouble getting our rear jacks to retract, the HWH tech I talked to on the phone recommended silicone. However, a few months ago, one of the members here on iRV2 posted an email from a tech at HWH which recommended WD-40.
I used to use silicone, but I have now switched to WD-40, which seems to be the latest recommendation. Both worked to get the jacks to go up faster. Whatever you use, allow it to dry thoroughly before retracting the jacks.
The HWH email said the main purpose of spraying something on the jacks is to clean rather than lubricate them. This sounds reasonable since WD-40 is mostly solvent. The cylinder is filled with hydraulic fluid, so lubrication really isn't necessary. The HWH email said spray the jack with WD-40, wipe clean, and allow to dry thoroughly before retracting the jacks. I usually clean the jacks every few weeks, and I try to remember to do it the day before we leave.