TM 9-2320-366-20-4
This task covers:
a. Top Plate Locking Mechanism Adjustment
c. Follow-On Maintenance
b. Sliding Mechanism Adjustment
INITIAL SETUP
Equipment Conditions
Tools and Special Tools
Semitrailer uncoupled (TM 9-2320-366-10-1).
Tool Kit, Genl Mech (Item 46, Appendix C)
Engine shut down (TM 9-2320-366-10-1).
Gage, Profile (Item 21, Appendix B)
a. Top Plate Locking Mechanism Adjustment.
NOTE
Rubber bushing on yoke shaft between top plate
casting and adjustment nut should rotate with
resistance.
If unable to rotate rubber bushing, turn adjusting
nut to the left.
(1) Insert profile gage in split locks (1).
(2) Lock fifth wheel (TM 9-2320-366-10-1).
(3) Rotate rubber bushing (2) between top plate casting (3)
and adjustment nut (4).
NOTE
Turning adjustment nut to the right will increase
split lock pressure on the profile gage. Turning
adjustment nut to the left has the opposite
effect.
When properly adjusted, profile gage can be
rotated in split locks with some resistance.
(4) Turn adjusting nut (4) until profile gage fits snug in split
locks (1) but will rotate with resistance.
(5) Unlock fifth wheel (TM 9-2320-366-10-1).
(6) Remove profile gage from split locks (1).
