TB 9-2320-279-13&P-4
0012
15
16
13
14
12
17
M870
Figure 19.
b. Remove two lockpins (16), one from each side of semitrailer gooseneck (17).
c.
Install two safety screws (15), nuts (14), safety locking pins (13), and safety clips (12) in lockpins (16) to
prevent loss.
NOTE
If semitrailer is M870, skip to Step (12).
If semitrailer is M870A1, continue with Step (11).
11. Remove two lockpins (16), one from each side of semitrailer gooseneck (17).
17
16
M870A1
Figure 20.
NOTE
Fifth wheel has two lock release handles.
12. Pull fifth wheel secondary lock release handle (18) completely out as far as it will go.