Kirby Morgan 77
3.10 Diving Procedures
3.10.1 Standing By to Dive
The diver may wear the neck dam ring assembly without discomfort if he is standing by to make a dive. However, the helmet itself must always be the last thing put on before the diver enters the water. Everything else must be ready to go before the diver puts the helmet on so he won’t have to support the weight of the helmet while out of the water.
3.10.2Attaching the Umbilical to the Harness
The umbilical must now be hooked to the diver’s har- ness by means of a suitable clip that is bound to the umbilical. Some divers and companies prefer a quick release clip and others prefer a clip that is screwed together so the diver cannot easily remove it from his harness. The securing of the umbilical keeps the pull of the hose at the diver’s harness and not on the helmet.
WARNING
Never dive without attaching the umbili- cal to some type of harness or clip on the diver’s body. Never allow the umbilical to pull on the helmet directly or the diver could suffer a neck injury.
3.10.3 Diver Dons Helmet
The diver dons the helmet as per Section 3.8.5.
3.10.4 Diver Check Gas Flow Systems
The diver must check out the breathing system him- self as the tender finishes dressing him. Operate the defogger valve, the demand regulator, and the purge button to assure yourself of proper operation before entering the water.
3.10.5 Communications Check
The communications system, sending and receiving, should be checked at this point.
3.10.6 Diver Ready
The diver is now ready to enter the water. He should be assisted to the water if needed. If a welding lens is being used, make sure it is hinged up all the way if the diver is making a jump entry. We do not recom- mend jump entries. A quick overall inspection by the tender is done and the diver is given the OK.
3.10.7 Water Entry and Descent
The tender must make sure there is a sufficient length of umbilical clear if the diver is using a jump entry. There must be no chance of the umbilical hanging up when the diver jumps. Also, the defogger valve should be turned on maintain sufficient pressure in the helmet to prevent the possibility of water pressure
It is essential for the diver to ensure that the breathing system is working properly before he enters the water. Note the correct attachment of the diver’s umbilical to his harness and the use of a submersible pressure gauge for the bailout system.
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