TM 5-3805-255-14
0073
CLEANING AND INSPECTION
00073
1. Clean and inspect all parts IAW General Maintenance Instructions (WP 0019).
2. Inspect all surfaces for burrs, scratches, nicks, scores, and other abrasions. Replace worn or damaged valves.
3. All parts with sliding fit must move freely in their bores. All grooves and passages must be free of foreign
matter.
4. Replace springs if broken or distorted.
5. For effective sealing of O-rings.
a. Seal counter bores must be thoroughly cleaned.
b. Coat O-rings, plungers, and counter bores with lubricant before assembly.
c.
O-rings must be free of molding defects and handling damage.
d. O-rings must not be stretched beyond yield point.
END OF TASK
ASSEMBLY
00073
NOTE
Apply thread adhesive to caps before assembly.
1. Install check (Figure 4, Item 6), spring (Figure 4, Item 7), cap (Figure 4, Item 8), and spring (Figure 4, Item 9)
on valve assembly (Figure 4, Item 18).
2. Install check (Figure 4, Item 10), seat (Figure 4, Item 11), and plug (Figure 4, Item 12) on valve assembly
(Figure 4, Item 18).
3. Install retaining ring (Figure 4, Item 13) on valve assembly (Figure 4, Item 18).
4. Install valve assembly (Figure 4, Item 18) and retaining ring (Figure 4, Item 17) on valve body (Figure 4,
Item 5).
5. Install spring (Figure 4, Item 16), new O-ring (Figure 4, Item 15), and cap (Figure 4, Item 14) on valve body
(Figure 3, Item 5).
6. Install gasket (Figure 4, Item 25), plate (Figure 4, Item 24), and two bolts (Figure 4, Item 23) on valve body
(Figure 3, Item 5).
7. Install check valve (Figure 4, Item 22), spring (Figure 4, Item 21), new O-ring (Figure 4, Item 20), and cap
(Figure 4, Item 19) on valve body (Figure 4, Item 5).
8. Install orifice plug (Figure 4, Item 4) and retaining ring (Figure 4, Item 3) on valve body (Figure 4, Item 5).
9. Install new O-ring (Figure 4, Item 2) and cap (Figure 4, Item 1) on valve body (Figure 4, Item 5).
0073-6
