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 31 of 863
TM 9-2320-260-34-2
13-3. FIFTH WHEEL MAINTENANCE (M818) (Contd)
c.
Assembly
1.
Install compression arm (3) and two coupler jaws (1) in fifth wheel housing (8) with two
bushings (9).
2.
Aline hole in compression arm (3) with hole in fifth wheel housing (8).
3.
Install two washers (7), new lockwashers (6), screws (5), and lubrication fittings (4) on two
bushings (9). Tighten screws (5) 150-200 lb-ft (203-271 N•m).
4.
Install spring (2) on two coupler jaws (1).
5.
Install bushing (33) and cam (34) on fifth wheel housing (8) with new lockwasher (35) and
screw (36).
6.
Place spring (16) on plunger rack (22).
7.
Install screw (31), spacer (21), and plunger rack (22) on fifth wheel housing (8).
NOTE
Add washers as needed to obtain proper height on plunger rack
latch. Latch must set level with latch on plunger rack.
8.
Install plunger rack latch (29), bracket (26), two washers (25), two new locknuts (24), and new safety
wire (23) on screw (31) and stud (30).
9.
Install new cotter pin (27) in fifth wheel housing (8) with eye of cotter pin (27) facing back of fifth
wheel housing (8).
WARNING
Eye protection must be worn when installing springs under
tension. Failure to do so may result in injury to personnel.
10.
Install spring (28) on plunger rack latch (29) and cotter pin (27),
11.
Install pinion gear (20) on fifth wheel housing (8) with screw (32), spacer ( 19), washer ( 18), and
new locknut (17).
13-8
12.
Install jamnut (11) on handle (10) and install handle (10) on yoke (13). Tighten jamnut (11)
80-95 lb-ft (108-129 N•m).
13.
Install yoke (13) on pinion gear (20) with screw (12), washer (14), and new locknut (15).
14.
Install new cotter pin (37) in fifth wheel housing (8).
15.
Install spring (38) on handle (10) and cotter pin (37).
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