TM 9-2320-272-24-4
For general cleaning instructions, refer to para. 2-14.
1.
For general inspection instructions, refer to para. 2-15.
2.
3.
Remove five keys (11) and bushings (10) from sprockets (4). Discard keys (11).
Inspect bushings (10), (6), and (8) for wear and damage. If worn or damaged replace bushings (10), (6),
4.
or (8).
5.
Inspect ratchet shaft (2) for burrs, nicks, and corrosion. If damaged, repair with file or emery cloth.
If damage is excessive, replace.
6.
Test spring action of lock plunger (14). If spring action is weak, replace lock (14).
7.
Install five new keys (11) and bushings (10) on sprockets (4).
Do not bend or strain ratchet shaft during installation. Doing so
may result in damage to equipment.
NOTE
Bevel forward end of ratchet shaft for installation.
Apply GAA grease on two feet of forward end of ratchet shaft for
installation.
Direct assistant to install ratchet shaft components under van
body when installing ratchet shaft.
1.
Slowly insert ratchet shaft (2) into underframe (1) and install five spacers (3), sprockets (4), spacers (5),
nine bushings (6), and four bushings (8).
2.
Install four setscrews (9) in bushings (8) in underframe channels (7).
3.
Lubricate ratchet shaft (2) with GAA grease (LO 9-2320-272-12).
4.
Install five covers (17) on underframe (1) with thirty screws (18).
5.
Install lock (14) and paw1 (15) on underframe stud (12) and underframe (1) with new
locknut (13) and screw (16).
5-472
