3 L4-2.5L (2010)
c. Check 2 sub slide unit links and 2 push nuts on rear side.
If push nut (A) is loose or missing, go to step 4.
If sub slide unit link (B) is damaged, go to step 5.
4. To fix loose/missing push nut (A):
a. At each location, install new push nuts. If necessary, remove the old push nut at each location, then discard it and install two new pushnuts.
Otherwise, just install one new push nut over the old push nut.
NOTE:
