TM 5-4220-231-14&P 2-70     Change 6 OPERATION PROCEDURES (OP) FOR DIVING OPERATIONS OPERATOR CHECKLIST OP 7 - (Cont) DATE                  /_             /_                  START TIME                               END TIME                                    . OPERATOR 1                                         OPERATOR 2                              LOCATION                                   . STEP ITEM LOCATION ACTION PERFORMED BY CHECKED BY POST-DIVE SHUT DOWN OP 7.1 (Cont.) 7.1.15 AHP-V403 DACC - HP, LP, Close CW. ALP-V404 and Console Close CW. ALP-V414 Pressure Gage Close CW. AHP-V407 Isolation Valves Close CW. ALP-V408 Close CW. 7.1.16 ALP-V411 DACC- Close CW. ALP-V412 Control Panel Close CW. 7.1.17 ALP-V504 VTA - Drain valve Slowly open CCW. Allow moisture to drain. Close CW. 7.1.18 ALP-V509 VTA - Control Panel Close CW. 7.1.19 AHP-V201 Secondary DASS all four racks - Close CW. AHP-V202 Flask Valves Close CW. 7.1.20 AHP-V203 Secondary Bottom Right DASS Rack Open valve CCW until AHP-G211 reads 0 PSIG. Bleeds all hoses. 7.1.21 AHP-V204 Secondary DASS All four racks. Close CW. 7.1.22 AHP-V203 Secondary DASS All four racks. Close CW. 7.1.23 AHP-V205 Secondary DASS All four racks. Close CW. 7.1.24 SDASS Bleed all umbilicals down from diving helmets. Remove all umbilicals, (Air and Pneumo hoses), HP, LP, and Interconnecting hoses from system. Replace protective caps as each hose is disconnected. 7.1.25 SDASS Perform After Operation PMCS IAW Table 2-1. Conducted By:                                           Rank:                                Date/Time                                          . Verified By:                                           Rank:                                Date/Time                                          . Supervisor:                                           Rank:                                Date/Time                                          .