Your F&P model does not have a back panel to take off and also does not have shock absorbers. The tub is hanging on 4 rods, one on each corner with a spring on the bottom of each rod. You will have to raise the top deck to fix it. Remove lid, remove 2 X screws at front (under the plastic plugs). At back you will see 2 clips holding top to the cabinet. Prise them out with a screwdriver & pull up. Lift top deck at front & get someone to hold it. Look for the rod on the corner that has dropped. The spring part just hooks in under the corner of bowl. Look at the other ones to see where it goes. Push down on each corner to make sure it is free to move up and down. Sometimes the spring will stick & you have to free it by bouncing that corner firmly up & down.
Lincoln Appliance NZ, June 2012