TM5-4220-231-14&P OPERATION PROCEDURES  (OP) FOR DIVINGOPERATIONS OPERATOR CHECKLISTOP  3 DATE / / START  TIME END   TIME OPERATOR1 OPERATOR 2 LOCATION STEP ITEM LOCATION ACTION PERFORMED CHECKED _IBY BY POST-DIVE SHUT    DOWN   OP   3.1 3.1.1 ALP-V505 VTA  Control Close CW. Panel 3.1.2 ALP-V506 VTA   Control Close     CW. Panel 3.1.3 ALP-V507 VTA   Control Close     CW. Panel 3.1.4 AHP-V201 Primary     DASS Close CW. AHP-V202 Primary     DASS Close     CW. 3.1.5 AHP-V201 Secondary DASS Close     CW. AHP-V202 Secondary DASS Close     CW. AHP-V206 Secondary DASS Close     CW. AHP-V207 Secondary DASS Close     CW. 3.1.6 AHP-V401 DACC- Open     CCW.    Arrow    points     open. Secondary HP   IN 3.1.7 ALP-V413 DACC- Slowly    open     CCW    to  bleed     air Rear    Panel from   DACC,    then    close. NOTE If SDASS will  be   left   assembled, and    diving    operations will  commence within 24   hours, omit   steps 3.1.8, and   3.1.21. 3.1.8 ALP-V508 VTA  - Remove protective cap. Bleed valve Slowly    open CCW. Bleed all  pressure from   system. Close CW. Replace cap. 3.1.9 AHP-V203 Primary DASS Close CW. 3.1.10 AHP-V209 Secondary DASS Crose CW. 3.1.11 AHP-V205 Primary DASS Close CW. 3.1.12 AHP-V203 Secondary DASS Remove protective cap. Slowly    open CCW. Bleed all   pressure from   system. Close CW. Replace cap. 3.1.13 AHP-V205 gecondary DASS Close CW. 3.1.14 AHP-V405 DACC   -   Control Close CW. AHP-V401 Panel, Primary and    Secondary 3.1.15 AHP-V402 DACC    -   Control Back    off  hand loaders by AHP-V406 Panel, Primary turning fully   CCW, then 1/4   CW. and    Secondary Change 6 2-51