100 HANDLING CHARACTERISTICS 



1. Secure the internal pressure-proof covers onto the viewing ports and bolt down hard, 

 using a diagonal bolting sequence. 



2. Remove the equalizing plugs on each viewing port from the outside. 



3. Open the equalizing plug and valve in the transformer enclosure and in the base of the 

 water closet. 



4. Install the external protective covers on the viewing ports. 



5. Fill the 150-gallon emergency fresh-water tank. 



6. Open the faucet on the water heater and all other faucets on the fresh water system. 

 DO NOT fill the water heater. 



7. Block the water-heater switch on the main power panel in the off position. 



8. Open the gas supply and gas-sampling valves Dl, D2, D3(2), E2, E3, and E5. 



9. Close the 48-in. -diameter hatch and bolt down tightly. 



10. Check the emergency escape hatch to be sure that it is properly secured. 



11. Install and bolt down tightly the strongbacks on the main and emergency access hatches. 



12. Secure all systems and switch off power. 



13. Vacate Sealab via the conning tower, close and secure the lower conning tower hatch. 



14. Close the upper conning-tower hatch and bolt down securely. 



15. Stow the normal power pigtail on top of the conning tower. 



16. Attach the atmosphere-gas-loss alarm to the end of the gas-sampling line of the umbil- 

 ical cord. 



17. Remove the caps from all flood and vent valves. 



18. Open equalizing valves Bl and B2 and vent valves A2, A4, and A6 to equalize the pres- 

 sure between ballast tanks 1,2, and 3 and the living compartment. 



19. Conduct a 15-psi pressure test and a 10-psi vacuum test on Sealab as outlined in 

 NAVSHIPYD SFRAN Test Memo Mo. SLn-126T-147. 



20. During the pressure test, check that the atmosphere-gas alarm is working properly. 

 Leave the alarm energized. 



21. Attach the German Crane lifting slings to Sealab. 



22. With the German Crane, lift and place Sealab in the water. Sealab should float with 1 ft 

 8 in. of freeboard. Access can be gained through the conning-tower hatches. 



23. Conduct the necessary trim and buoyancy checks. 



24. Remove the lifting slings. 



25. Make the necessary towing connections. Towing will be done with the forward inboard 

 pad. 



26. Install the lowering bridle to the lifting pads. 



