Checked my jack today to try and stop it rattling - as per uTube Ingmar - Only to find the jack wont work at all . Piston fault or no oil !Not for changing a wheel, see the Puncture thread (how do I link to an entire thread?). To summarise:
Rock slider/high lift or exhaust jack under chassis members is to get the chassis off the ground (eg to get the shovel under the vehicle) in a recovery. If the tyre is punctured or off the rim the safest option is to gently get to somewhere flat before lifting under the axle with the bottle jack as per the Owners Manual.
The jack mate discussed earlier is if you’ve gone down into a hole and run aground, again it’s an easy way to lift the effected wheel and build the track underneath it. You could use it to lift the car for a repair involving wheel removal but you need something to rest the vehicle on. For example, a brake has seized: you can lift the vehicle via high lift under rockslider or with the jack mate and then pop the spare wheel under the outrigger or axle while you effect a repair. Obviously no good if you’re changing across to the spare wheel as it’s now busy holding the vehicle up.
But if something drastic happens (sheared wheel studs/lost a wheel/sitting on the rim etc) then the high lift is the pick as it will be very difficult to get the bottle jack into a position where the axle can be safely lifted to permit repairs (because obviously in this case the axle itself is on the ground).
Asked for immediate replacement from agent - not waiting for the return for software stuff.
Suggest all new owners check