TM 9-2320-240-34-2
13-5. FIFTH WHEEL MAINTENANCE (M819) (Contd)
b. Cleaning and Inspection
1. For general cleaning instructions, refer to para. 2-8.
2. For general inspection instructions, refer to para. 2-9.
WARNING
Eye protection is required when using wire brush for cleaning.
Failure to do so may result in injury to personnel.
3. Clean larger parts with steam and wire brush.
WARNING
Drycleaning solvent is flammable and will not be used near open
flame. Use only in well-ventilated places. Failure to do so may
result in injury to personnel.
4. Clean smaller parts with drycleaning solvent. Allow to air dry.
5. Inspect coupler jaws (2), fifth wheel housing surface (3), studs (4) and (5), base (7), walking
beam (9), bores (10), plunger latch (14), and handle (15) for cracks, breaks, pitting, scoring, bends,
grooves, and gouges. Replace part(s) if damaged.
6. Inspect springs (8), (12), and (13) for bends, breaks, and collapsed coils. Measure spring lengths.
Refer to table 13-3, Spring Free Length, for measurements. Replace springs (8), (12), or (13) if
damaged or worn.
7. Inspect plunger (1), base pivot shaft (6), and lateral pivot shaft (11) for wear. Refer to table 13-4,
Fifth Wheel Wear Limits, for measurements. Replace plunger (1), base pivot shaft (6), or lateral
pivot shaft (11) if damaged or worn.
13-18
