Kirby 77 User Manual download pdf (Page 19)

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.

3.10.2 Attaching 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.

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

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.

WARNING

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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Kirby 77 User Manual Page 19

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