b. CLEANING AND INSPECTION
TM 9-2330-390-14&P
4-83. TOP AND BOTTOM BEAMS AND POSITIONING CYLINDERS REPLACEMENT
(Con't).
10.
11.
12.
13.
14.
15.
16.
17.
18.
Remove two cotter pins (16) flatwashers (17) and clevis pins (18) from positioning cylinders (2) and bottom
beam (3). Discard cotter pins.
Remove two positioning cylinders (2) from bottom beam (3). Place positioning cylinders on a clean work
surface.
NOTE
Note quantity of flatwashers removed to aid in installation.
Place a wooden block or other suitable support under axle assembly (7) and pivot axle bracket (8). Remove
two cotter pins (11), flatwashers (10), and clevis pins (12) from suspension links (9) pivot axle bracket, and
bottom beam (3). Discard cotter pins.
Separate bottom beam (3) from suspension links (9) and pivot axle bracket (8).
NOTE
Perform steps 14 through 18 if replacing top or bottom beam or if components are
damaged.
Remove top hooks (see paragraph 4-84).
Remove hanger brackets (front dolly) (see paragraph 4-100).
Remove detent pin lanyard assemblies (see paragraph 4-99).
Remove data plates (front dolly) (see paragraph 4-105).
Remove toolbox mounting brackets (front dolly) (see paragraph 4-97).
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective
goggles and gloves, and use only in a well-ventilated area. Avoid contact with skin,
eyes, and clothes, and DO NOT breathe vapors. DO NOT use near open flame or
excessive heat. The solvent’s flash point is 100° F- 138° F (38° C-59° C). If you
become dizzy while using cleaning solvent, immediately get fresh air and medical help.
If solvent contacts eyes, immediately wash your eyes and seek medical attention.
1.
Clean top and bottom beam mounting hardware and straight connectors with dry cleaning solvent and dry with
clean rags.
2.
Clean top and bottom beams as required to remove any grease, dirt, or mud.
3.
Inspect all components for cracks, breaks, bends, corrosion or damaged threads. Replace damaged
components.
4.
Ensure that positioning cylinders limit lines are stenciled on bottom beam vertical tubes, 49 in. (124 cm) from
bottom beam (see paragraph 1-14).
Change 3 4-225
