Knocking noise in front storage area -- metal column

Old Biscuit--the triangular edge of the putty knife was inserted about 1" between the outer and inner casings, just enough to snug it up. Obviously there is some movement between the two causing the noise when the trailer moves from someone walking around the cap. We can't access the inner workings of the jack, so this is just a temporary fix to deal with the noise issue until we can access an rv shop.