TM-9-2320-366-20-4 MTV Unit Maintenance Manual M1083 Series - Volume 4 Download
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TM TM 9-2320-366-20-4 9-2320-366-20-4 14-11. M1088 FIFTH WHEEL ADJUSTMENT This task covers: a. Top Plate Locking Mechanism Adjustment b. Sliding Mechanism Adjustment c. Follow-On Maintenance INITIAL SETUP Equipment Conditions Semitrailer uncoupled (TM 9-2320-366-10-1). Engine shut down (TM 9-2320-366-10-1). Tools and Special Tools Tool Kit, Genl Mech (Item 46, Appendix C) 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). 14-91 14-91