TM 10-3510-226-23
0031 00
REPLACE-CONTINUED
Replace Brass Check Valves
WARNING
Ensure graywater pipes have been sanitized IAW procedures contained in TB MED 577
before attempting any repairs. Failure to observe safety precautions may result in
serious illness or death from biohazards.
NOTE
Valve V-17 requires removal of Washer No.1 at least 2 inches IAW procedures given in
1. Flush and drain Water Treatment System IAW procedures given in TM 10-3510-226-10.
2. Place CBL out of service and disconnect power.
3. Locate the nearest union or hose fitting and disconnect.
4. Make a note of the direction of flow and position of the check valve (Figure 8, Item 3).
5. Use a pipe wrench to steady the attached pipe and remove the check valve (Figure 8, Item 3).
6. Use a pipe wrench to steady the check valve (Figure 8, Item 3) and remove any remaining attached
pipe or fittings (Figure 8, Item 13) as an assembly.
7. Apply pipe sealing compound to the check valve (Figure 8, Item 3) or attached male pipe fittings
(Figure 8, Item 13).
8. Use a pipe wrench to steady attaching pipe.
9. Install the check valve (Figure 8, Item 3), ensuring that the correct direction of flow and valve position
has been retained.
10. Use a pipe wrench to steady the replacement check valve (Figure 8, Item 3).
11. Install any remaining attached pipe and fittings (Figure 8, Item 13) as an assembly onto the
replacement check valve (Figure 8, Item 3).
12. Connect and tighten any remaining disconnected unions or hose fittings.
13. Operate CBL IAW procedures given in TM 10-3510-226-10 and monitor for leakage and normal
operation.
0031 00-13
