TM 5-3805-274-13&P
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ASSEMBLY
NOTE
Pinch one side of the front O-ring seal into a smaller diameter than
the groove, then insert the front O-ring seal. When the front O-ring
seal is in place, straighten it by running a smooth rod around the
inside perimeter until sealed. After installation is complete, check it
by running your finger around the exposed edge. It should have a
smooth ridge with no kinks.
1.
If removed, install adapter (Figure 2, Item 40) and washer (Figure 2, Item 39) on end of spool
(Figure 2, Item 29).
2.
Install guide ball (Figure 2, Item 10), new seal (Figure 2, Item 11), and ball (Figure 2, Item 9) on valve
housing (Figure 2, Item 8).
3.
Install valve housing (Figure 2, Item 8), new seal (Figure 2, Item 7), washer (Figure 2, Item 6), new seal
(Figure 2, Item 5), and new seal (Figure 2, Item 11) on valve body (Figure 2, Item 30).
4.
Install adjustment screw (Figure 2, Item 13) and spring (Figure 2, Item 12) on valve housing
(Figure 2, Item 8).
5.
Install jam nut (Figure 2, Item 15) and washer (Figure 2, Item 14) on valve housing (Figure 2, Item 8).
6.
Install washer (Figure 2, Item 16) and cap cover (Figure 2, Item 17) on valve housing (Figure 2, Item 8).
NOTE
Apply small amount of grease on front O-ring seal to prevent it
from tearing during assembly.
7. Install new front O-ring seal (Figure 2, Item 42) in front groove of valve body (Figure 2, Item 30).
8. Push spool (Figure 2, Item 29) forward through front O-ring seal (Figure 2, Item 42). Push spool
(Figure 2, Item 29) until rear spool groove is completely exposed, but no further.
9. Repeat steps 1 and 2 to install new back O-ring seal (Figure 2, Item 28).
10. From front side, push spool (Figure 1, Item 29) back approximately 1/2-in. (1.27 cm).
11. Assemble spring assembly stop collar (Figure 2, Item 27), centering spring (Figure 2, Item 26), stop
collar (Figure 2, Item 25), spool collar (Figure 2, Item 24), and new lockwasher (Figure 2, Item 23).
12. From front of valve body (Figure 1, Item 30), hold spool (Figure 2, Item 29) and install spring assembly
with screw (Figure 2, Item 22).
13. Install bonnet cap assembly (Figure 1, Item 21).
14. Install new diaphragm (Figure 2, Item 18) in bonnet cap assembly (Figure 2, Item 21). Install bonnet cap
assembly (Figure 2, Item 21) on valve body (Figure 2, Item 30) with four new lockwashers
(Figure 2, Item 20) and screws (Figure 2, Item 19). Tighten screws (Figure 2, Item 19).
15. Install bracket (Figure 2, Item 41) on valve body (Figure 2, Item 30) with four new lockwashers
(Figure 2, Item 37) and screws (Figure 2, Item 38).
16. If removed, install new O-ring seals (Figure 2, Items 1 and 3) and plugs (Figure 2, Items 2 and 4) on
valve body (Figure 2, Item 30).
17. Install new O-ring seals (Figure 1, Items 31, 32, and 33) and cover (Figure 2, Item 34) on valve body
(Figure 2, Item 30) with four new lockwashers (Figure 2, Item 36) and bolt assemblies
(Figure 2, Item 35).
18. Install hydraulic control valve (WP 0035).
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