TM-9-2320-260-34-2
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 2 OF 2
JULY 1994
TM-9-2320-260-34-2 - Page 29 of 863
TM 9-2320-260-34-2
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13-3. FIFTH WHEEL MAINTENANCE (M818) (Contd)
1.
For general cleaning instructions, refer to para. 2-8.
2.
For general inspection instructions, refer to para. 2-9.
3.
Inspect handle (1), plunger rack latch (3), pinion gear (6), stud (7), fifth wheel housing surface (8),
coupler jaws (11), compression arm (14), and bushings (15) for grooves, breaks, cracks, cuts, bends,
stripped threads, and damaged gear teeth. Replace part(s) if damaged.
4.
Inspect springs (2), (5), (12), and (13) for bends, breaks, collapsed coils, and correct spring
lengths. Refer to table 13-1, Fifth Wheel Spring Free Length, for measurements. Replace
springs (2), (5), (12), or (13) if damaged or worn.
5.
Inspect plunger rack (4), pivot pins (9), and cam (10) for wear. Refer to table 13-2, Fifth Wheel Wear
Limits, for measurements. Replace plunger rack (4), pivot pins (9), or cam (10) if damaged or worn.
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13-6
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