To reverse the fan on your Derale # D15960, it is a little bit of a process. What you need to do is remove the fan, flip it around, and then reinstall it. view full answer...
The Electric Ground Control TT Automatic 5-Point Travel Trailer Leveling System part # LC672136 uses the jack for the initial leveling but when all four of the pods are deployed and leveled the jack will retract.
It is perfectly acceptable to use the jacks switch to redeploy it and use it as a fifth point of contact. From my experience there wouldn't be a need for any additional support from the jack as the system is very solid but you will have the option. view full answer...