TM 5-4220-226-14&P CHAPTER 4 ORGANIZATIONAL MAINTENANCE INSTRUCTIONS Para Para Clean Area ................................................ 4-31 One Way Valve Assembly Maintenance ............ 4-14 Cleaning Component Soft Goods .............. 4-36 Oral-Nasal Mask Maintenance ................. .......... 4-16 Cleaning Method - Non-Ionic Detergent .... 4-34 Organizational Level Cleaning Procedure for Cleaning Method - Trisodium Phosphate . Diving Life Support Air System, General............ 4-29 (TSP) ........................................................ 4-35 Organizational Preventive Maintenance Common Tools and Equipment ................... 4-1 Checks and Service........................................... 4-7 Communications Whip Maintenance ......... 4-22 PMCS, Introduction.......................... .................. 4-6 Demand Regulator Assembly . Port Retainer Maintenance ................................ 4-20 Maintenance ............................................. 4-15 Pre-Cleaning of Components or Piping .............. 4-33 Determining System Cleanliness............... 4-30 Preparation for Storage or Shipment.................. 4-28 Documentation and Record Keeping ..... ... 4-38 Preparation for Storage or Shipment, Exhaust Tube/Whisker Exhaust Assembly General.............................................................. 4-27 Maintenance ...................... .......................4-18 Removing and Installing System........................ Exhaust Valve Assembly Maintenance ..... 4-21 Components or Piping ....................................... 4-32 Helmet Adapter Hose Maintenance ........ .. 4-26 Repair Parts....................................................... 4-3 Helmet Assembly Maintenance . ........ ...... 4-11 Service Upon Receipt, Introduction............. ....... 4-4 Helmet Communications Maintenance  ....  4-24 Side Block Assembly Maintenance .................... 4-13 Helmet Liner Maintenance ...     ................ 4-23 Special Tools, TMDE, and Support Hydrocarbon Inspection and Analysis ........ 4-37 Equipment .................................. ....................... 4-2 Initial Inspection .......................................... 4-5 Superlite 17B Diving Helmet Muffler/Air Train Assembly Maintenance ... 4-19 Maintenance .................................. .................... 4-10 Neck Dam and Yoke Assembly Troubleshooting ................................................. 4-9 Maintenance ............................................. 4-12 Troubleshooting, Introduction............................. 4-8 Nose Clearing Device Maintenance........... 4-17 Umbilical Maintenance....................................... 4-25 SECTION I.  REPAIR PARTS; SPECIAL TOOLS; TEST, MEASUREMENT, AND DIAGNOSTIC EQUIPMENT (TMDE); AND SUPPORT EQUIPMENT 4-1.  Common Tools and Equipment. For  authorized  common  tools  and  equipment,  refer  to  modified  table  of  organization  and  equipment  (MTOE) applicable to your unit. 4-2.  Special Tools, TMDE, and Support Equipment. Special tools required for organizational maintenance are listed and illustrated in the repair parts and special tools list (appx F).  TMDE and support equipment are listed in the maintenance allocation chart (appx B). 4-3.  Repair Parts. Repair parts are listed in the repair parts and special tools list (appx F). 4-1