Kirby Morgan - Kirby Morgan 77 Operation And Maintenance Manual

Breathing System Maintenance and Repairs
7.1 Introduction
This chapter covers the maintenance and repair of all
components of the breathing system. The breathing
system includes the one way valve, the emergency
valve, the side block, the bent tube assembly, the de-
mand regulator, and the oral/nasal mask.
Overhauls and Inspections IAW the DiveLab Over-
haul and Inspection Checklist A2.1 can be accom-
plished using the detailed instructions in this chapter.
The A2.1 checklist should be used and filled out as a
means of tracking maintenance and repairs. Repairs
and replacement parts and components can be docu-
mented on the A2.1 checklist.
The breathing system on all Kirby Morgan helmets
and masks is simple and highly reliable. The fact that
they can continue to operate when the components are
not in a well-maintained condition can cause divers
to become complacent about maintenance.
Your life depends on the correct function of this
equipment!
While Kirby Morgan helmets and masks are simple
to maintain, like any type of life support equipment,
they do require regular periodic maintenance to func-
tion properly.
All parts disassembled should be thoroughly cleaned
using the methods described in Chapter 6. Compo-
nents that require the use of lubricants, sealing and
thread locking compounds should also be serviced.
Most fasteners have a torque value. It is imperative that
all fasteners which have a torque value be tightened to
the torque specifications as outlined by the procedure,
or as listed in the table in the rear of this manual. If
© ⅯⅯⅩIⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130318003
Chapter 7.0
WARNING
Overtightening a part may lead to part
failure and improper operation of Kirby
Morgan life support apparatus. Under-
tightening a part may cause the part to
come loose and may also lead to im-
proper operation of the equipment. Either
situation may lead to personal injury or
death.
in doubt as to the proper torque setting, contact your
local authorized repair facility or KMDSI.
7.2 Torque Values
All fittings must be tightened to their correct torque
values. See Appendix 1 in the rear of this manual for
the correct torque specifications.

Kirby Morgan

77
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77