TM 9-2320-260-34-2
13-5. FIFTH WHEEL MAINTENANCE (M819) (Contd)
14.
Position base (3) on arbor press.
WARNING
Eye protection must be worn when installing springs under
tension. Failure to do so may result in injury to personnel.
15.
Install two leveling springs (2) on base (3).
16.
Position walking beam (1) on base (3) and leveling springs (2).
NOTE
Groove of base pivot shaft must face upwards.
17.
Using arbor press, depress walking beam (1) and install base pivot shaft (9) in walking beam (1)
and base (3).
Install two lubrication fittings (8) in base pivot shaft (9).
18.
WARNING
All personnel must stand clear during lifting operations.
A swinging or shifting load may cause injury to personnel.
Ensure lifting capacity is greater than weight (600 lb (272 kg)) of
fifth wheel. Failure to do so may result in injury to personnel or
damage to equipment.
19.
Attach chain to fifth wheel housing (12) with two screws (10), four washers (11) and nuts (13).
20.
Attach lifting device to chain. Apply tension to chain.
21.
Lower fifth wheel housing (12) onto base (3) alining holes in fifth wheel housing (12) with holes in
walking beam (1).
22.
Install lateral pivot shaft (14) in fifth wheel housing (12) alining hole (16) in lateral pivot shaft (14)
with hole (17) in walking beam (1).
23.
Install screw (20), new lockwasher (19), and nut (18) on walking beam (1) and lateral pivot
shaft (14). Tighten nut (18) 30-40 lb-ft (41-54 Nm).
24.
Install two lubrication fittings (15) in lateral pivot shaft ( 14).
25.
Install two wedges (4), new Iockwashers (5), washers (6), and screws (7) on base (3).
26.
Remove lifting device from chain.
27.
Remove two nuts (13), screws (10), and four washers (11) from fifth wheel housing (12).
13-22
