TM-9-2320-366-20-4

M1083 SERIES, 5 TON, 6x6, MEDIUM TACTICAL VEHICLES (MTV)

TECHNICAL MANUAL; MAINTENANCE INSTRUCTIONS; UNIT MAINTENANCE; VOLUME NO. 4 OF 5

FEBRUARY 2006

CHANGE 3

TM-9-2320-366-20-4 - Page 1021 of 1558

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).

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