Kirby 77 User Manual download pdf (Page 2)

Kirby Morgan 77

3.3 First Use of Your Kirby Morgan

Diving Helmet

When you ﬁrst receive your Kirby Morgan diving

helmet, carefully unpack it and examine it for any

damage that may have occurred during shipment.

Use the inspection sheet provided to ensure that no

damage has occurred. The purchaser must contact

the freight carrier and/or the KMDSI dealer if the

helmet has been damaged in shipment.

Early production of the REX 77 helmet had a much

different surface ﬁnish than what is found on current

production runs.

Earlier helmets shells and components were ﬁnished

using a combination of glass and Stainless Steel

beads; this gave a dull or ﬂat looking surface ﬁnish.

Later shipments have a surface ﬁnish with a much

smoother and almost shiny appearance. Although the

parts are not shiny, the surface ﬁnish is very smooth.

A Scotch-Brite

, (or similar non metallic), scouring

pad will remove buildup of unwanted surface depos-

its on both older, and newer REX 77 helmets. It can

also be used to give the main helmet components on

newer helmets, a satin (brushed ) ﬁnish.

Be sure to complete the enclosed warranty card

and return it to KMDSI immediately. No warranty

claims will be honored without a correctly com-

pleted warranty card on ﬁle at KMDSI.

The diver must be tended at the surface at all times

by a trained, qualiﬁed commercial diving tender.

Never dive without a qualiﬁed tender holding your

diving hose.

The diving control station can be at the surface, in

a diving bell, or in a submerged habitat. The diving

control station is the center of the air/gas supply, com-

munications with the diver, and diving procedures.

The station can be as simple as a tender with a set of

“phones” (communication ampliﬁer), or as complex

as a control van in the midst of a saturation system.

For maximum breathing performance it is desirable

to maintain an over bottom supply pressure in ac-

cordance with the low-pressure and high-pressure

supply tables found in Chapter 2 of this manual. With

the many different gas supply console conﬁgurations

in use, it is important to ensure that the gas supply

system used, is capable of supplying the helmet with

the necessary pressure and ﬂow of gas to allow the

diver to work safely and efﬁciently.

There are also detailed checklists for the set-up and

maintenance of your helmet on the Dive Lab web site

at www.divelab.com.

WARNING

High pressure supply regulators and as-

sociated piping systems for surface sup-

plied diving with Kirby Morgan helmets

and masks must be capable of delivering

a minimum of 3.2 acfm to the diver at

depth. Only systems that can deliver the

required gas ﬂow should be used.

KMDSI manufactures a complete Air Control System,

the KMACS 5™ with integrated communications

and pneumofathometer. This portable system can be

operated on either a high pressure air supply or on a

low pressure compressor. The Air Control System has

a specially designed high pressure regulator that re-

duces high pressure air and provides an adequate ﬂow

to support divers to a depth of 130 fsw (40 msw)

The helmet demand regulator and side block assem-

blies have been designed to operate with a supply

pressure from 130 p.s.i.g. (8.8 bar) to 225 p.s.i.g.

(16 bar) over ambient pressure. This wide operating

range allows ﬂexibility when using various gas sup-

ply systems.

WARNING

All diving always involves the risk of

decompression sickness. Omitted de-

compression due to loss of gas supply or

other accidents can cause serious injury

or death. The use of the Kirby Morgan

helmets or masks cannot prevent this

type of injury.

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