Kirby 77 DANGER

Kirby Morgan 77

Rapid ascent is dangerous. It can lead to

air embolism or decompression sickness.

Air/gas embolism can cause immediate

loss of consciou sness and/ or death.

Even on a no d ecompres sion dive, a

rapid ascent may cause decompression

sickness. A diver must only make a rapid

ascent when he is in immediate danger of

death by drowning or asphyxiation.

DANGER

Ditching the helmet underwater must be

avoided. If the diver ditches the helmet

underwater he w ill not be a ble to see.

In many instances, even if the air sup-

ply is interrupted, topside will be able to

get it back on line quickly. Do not ditch

the h elmet und erwater unless you are

completely out of breathing gas and it is

impossible to return to the surface due

to ent anglement of your equipment or

similar circumstances.

Never remove t he divin g helme t while

you are in the stage. If you fall out of the

stage with the helmet off but still attached

to your harness it may be very difﬁcult to

swim. Drowning may result.

3.11.4 Demand Regulator Free Flow

If the dema nd regulator free ﬂows, tur n the adjust-

ment knob in (clockwise) until it stops. If t he free

ﬂow cannot be stopped, the dive should be aborted.

Even if there is no serious problem to the diver, the

dive should be abor ted and the problem with the

regulator corrected.

Sometimes it may be necessary to tilt your head so

the regulator is face up to help stop the regulator in a

free-ﬂow situation.