TM 5-4210-220-12 4-18.  PUMP, PIPING, AND VALVES-Continued 4-18.10  Foam Piping, Couplings, and Valves This task covers Replacement TOOLS LEGEND MATERIALS/PARTS Shop Equipment, Automotive Maintenance and Repair, 22, Appendix E, Pipe Sealant NSN 4910-00-754-0705 1. 102190 Elbow Assembly 2. Style 75-1.5 Victaulic Coupling EQUIPMENT CONDITION 3. 102189 Elbow Assembly All Piping Drained 4. 102187 Tee Assembly Pump Access Panels Removed (as required) 5. 102176 Actuator Valve Main Engine Shutdown (see para. 2-10) 6. 102183 Pipe Weldment APU Shutdown (see para. 2-12) 7. 102202 Pipe Weldment Batteries Disconnected (see para. 4-24) 8. 101638-084 Hose x 84.0" L Heat Shields Removed (see para. 4-11) (as required)    9. 101638-156 Hose x 156.0" L Foam Tank Drained (see para. 2-13) (as required) 10. Fig 1105-1.5 Tee Fitting 11. 101638-036 Hose x 36.0" L PERSONNEL REQUIRED - 2 12. 253530 Meter Valve 13 2024-24-24S Elbow Fitting 14 101638-060 Hose x 60.0 in. L 15. 102272 Mounting Bracket - Meter Valve 16. 2021T-24-24S Adaptor Fitting 17. 92-105" Check Valve 18. 102256 Elbow Assembly 19. 2565-23 Eductor 20. 102247 Reducer Weldment 2" 1.5" NPT 21. 101638-180 Hose x 180.0" L 22. 1.5-21-1136-TTO Ball Valve 23. 101830-01 Nipple 1 1/2 NPT x 2.38 LG 24. HS 40 Hose Clamp 2 1/2" 25. DCH 2250 Silicone Hose REPLACEMENT Replace damaged piping, hoses, or valves using the illustration and MATERIALS/PARTS legend as a guide. Replace the couplings and valves using the following procedures Victaulic Coupling see para. 4-18.3 Drain Valve see para. 4-18.6 Air Actuated Ball Valve see para. 4-18.11 Air Actuator Repair see para. 4-18.12 Foam Metering Valve see para. 4-18.13 Foam Eductor Check Valve see para. 4-18.14 Foam Eductor see para. 4-18.15 4-242