|
| |
TM 5-2420-222-34
14-8.
JAW CONTROL VALVE ASSEMBLY REPAIR (Con’t).
b.
CLEANING AND INSPECTION
WARNING
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 100F-138F (380C-59C). If you
become dizzy while using cleaning solvent, Immediately get fresh air and medical
help. If solvent contacts eyes, Immediately wash your eyes and get medical aid.
1.
Clean cylinder reliefs and main relief with rag dampened in dry cleaning solvent. Dry thoroughly with clean, dry
2.
Clean all metal parts with dry cleaning solvent and rags. Dry thoroughly with clean, dry rags.
3.
Inspect main relief for damage. If damaged, replace main relief.
4.
Inspect two cylinder reliefs for damage. If damaged, replace cylinder relief.
5.
Inspect all threaded parts for damaged threads.
c.
REPAIR
Restore damaged threads using screw threading set or pipe threading set.
d.
ASSEMBLY
1.
Soak all Internal valve parts In hydraulic fluid.
2.
Place valve body (9) in vise with caps.
3.
Install two cylinder reliefs (20 and 22) and new preformed packings (21) In valve body (9).
4.
Install pipe plug (23) in valve body (9).
5.
Install valve disk (27), spring (26), new preformed packing (25), and plug (24) in valve body (9).
14-42
|
