Jacking For Tire Change
Seems there is a lot of controversy over where to place a jack on a 2-axle travel trailer to change a single tire or service wheel bearings. Experts say under the U-bolt plate is not OK because of the...
Forum Discussion
B-n-B wrote:
Actually it has a swivel saddle with a "scissored" lift arm and doesn't roll. Or, if it did I didn't notice enough to matter. I have actually used this jack twice without issue, so I'm not speaking hypothetically about its effectiveness. Once in a parking lot (on my car hauler) and once in sand (on my camper) at the CG. The 1x6 worked like a charm with the jack in the sand.
I don't know how I lived to tell about it.
Gdetrailer wrote:
Thin board UNDER the floor or trolley jack just like you SHOULD use under ANY jack solves your objection.
Was taught many yrs ago to never use any jack directly on ground as that ground can give way unevenly resulting in the jack tipping over.
Something else to consider, with a floor or trolley jack, the arc is small, maybe 1/4" inch in total travel for the entire lift. The vehicle also moves with that arc, your assuming the vehicle stays put and never moves which is not true. Trailers and vehicles are on wheels, the brakes, drive line have slop in them which allows the vehicle to move back and forth.
I don't know where you guys get the magic floor jacks that don't move. Just for snots and grins I just put a tape on 1 of mine (standard 7000 lb capacity that I load if I know I'm going to need a jack, or grab if I need to lift a car in the drive) I put the wheels against the wall and measured to center of pad. 5 inches. Jacked to top, 13 inches.
Junking cars around others junking cars, I have seen more than 1 slip off the jack because the little steel wheels would not roll on soft wood, or because the jack rolled off the end of the board.
