Need a FW w/ failed hydralic system & 6 point sys off truck

After getting it off of the truck, I would use sections of 4x4 fence post about 15" long stacked like Lincoln Logs as cribbing under the landing gear pads to support it off the jack(s). You don't want to let it all the way down to the ground (you have to get it back up sooner or later) and you definitely should not leave it on the jacks.