Kirby Morgan 77 - Manual (Page 19)

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© Copyright 1970-2008 Kirby Morgan Dive Systems, Inc. All rights reserved. Document #080626002
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.