It is easy to do. I have replaced my springs on my HWH jacks on 35 ft. Winnebago. Look on net, I used 20 penny nails. Extend jack, place nails, chop spicks, cloths pins, or whatever else in springs, allow jacks to retract. Might need a little help from a lever to push up on jack. Remove plate, it should just fall off. Takes about 10 minutes per jack. If you are replacing the springs, then, you have to be a little creative. Turns out the front hitch on my jeep toe was the correct distance apart to extend new springs. Bought 3 feet of 1/4 inch cable, anchored spring on one end of hitch, adjusted cable to correct length, and used jeep, piece of junk screw jack, to extent spring. Place objects (nails or whatever) in springs, and put on jacks, extend jack remove nails. Repeat. Took about two hours to do all four jacks.