I take the top half off by removing the two pins that hold it on. Turn it over to examine the underside and clean if necessary. I do add a little lithium grease and cycle the locking mechanism several times. You can then easily examine the tripping lever for wear and condition. Using the manual parts list diagram the part A, Fifth Wheel Plate Assembly can be easily removed. When you turn it over you will see how the mechism works and the tripping lever (Cam) that I replaced. I have the 15K model, but the other models should be similar.
Mary & Ted
2016 Silverback 33IK
2015 GMC Sierra 2500HD CrewCab Diesel/Super Glide Hitch
Days camped 09 -53, 10 -56, 11 -57, 12 - 55, 13 - 46, 14 - 50, 15 - 60, 16 -20 so far
7 FROG Rallies (Goshen(4), Charleston, Amana(2))