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© ⅯⅯⅩⅢ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130115001
SuperLite
®
27
®
6.3.1 O-Ring Removal/Inspection/Cleaning
and Lubrication
Strict cleanliness and proper lubrication are extremely
important during o-ring installation. Comply with the
following instructions to ensure proper installation:
NOTE: Ensure all parts are clean throughout the
assembly procedure. Dirt or loose particles in the
o-ring groove can cause leaks in the seal and dam-
age to the o-ring, reducing its life. During cleaning
of equipment, carefully clean o-ring grooves, using
a soft bristle brush and liquid soap solution.
6.3.1.1 O-Ring Removal:
Do not use screwdrivers or metal picks to remove
o-rings. When possible, only use fingers to remove
o-rings. If an o-ring fits too tightly in its groove to
be removed using the fingers, use the appropriate tool
from an o-ring removal kit (brass pick). You can also
use the corner of a plastic credit card.
A plastic cable tie makes an effective O-Ring removal
tool. Use of an appropriate tool helps prevent scratch-
ing the o-ring groove, which can cause leakage or
premature failure of the seal.
6.3.1.2 O-Ring Inspection:
If during routine corrective maintenance o-rings are
to be reused, only reuse o-rings that pass a visual
inspection. Inspect for deformities or compression
set, hardening or brittleness, nicks or cuts, pits or blis-
ters, or any other signs of damage. Cut and discard
damaged o-rings and replace them with new ones.
6.3.1.3 O-Ring Reuse:
All o-rings and soft goods must be replaced whenever
scheduled overhauls are being completed. During
routine repairs or maintenance in between overhauls,
o-rings and soft goods may be reused after cleaning
provided a careful inspection reveals no wear or
damage.
Place the o-rings in a cleaning basin, cover with a
mild liquid soap solution, and brush gently with a
soft bristle brush to remove all traces of old lubricant
and contamination. Rinse cleaned o-rings with fresh
water and wipe clean with lint-free cloths, then allow
to air dry, carefully inspect for cracking, cuts, abra-
sions and deformities. Replace o-rings if any damage
is found or suspected.
6.3.2 General Cleaning Guidelines
Cleaning and sanitizing of the SuperLite
®
27
®
should
be accomplished upon completion of use and/or
prior to storage. Clean is defined as free of dirt, rust
particles, lubricant and oil and other contaminants as
viewed by the unaided eye.
Sanitizing is defined as eliminating germs and mi-
croorganisms. Sanitizing should be accomplished
post use or prior to use by another user. KMDSI
recommends sanitizing be accomplished any time
the unit is to be used by another person during the
mission or operation.
NOTE: The sanitizing procedure should be accom-
plished, if possible, between uses by different users
during the same operation.
6.3.2.1 Soap Solution for General Cleaning
and Leak Detector Use
Maintenance procedures include cleaning with a
general-purpose soap solution of a mild diluted hand
dishwashing soap such as Joy
®
or Palmolive
®
. Clean-
ing solution is prepared by mixing approximately one
teaspoon of soap to 1/2 gallon of warm fresh water.
This solution may also be used as a leak detector
solution. Place all parts and components in a clean
washbasin or sink and immerse in soap solution.
Allow parts/components to soak for at least five min-
utes, and then scrub using a nylon brush. Carefully
brush all surfaces, paying close attention to o-ring
grooves and threaded surfaces ensuring all lubricants
are removed. Regardless of the soap used, all com-
ponents must be thoroughly rinsed post cleaning to
remove all traces of soap.
6.3.2.2 Acidic Cleaning Solution and Proce-
dures
Metal parts that have visible corrosion should first be
cleaned using the soap solution scrubbed with a nylon
bristle brush, then soaked in a solution of 50% white
vinegar and water for less than 60 minutes. They
may also be placed in an ultrasonic sink followed
by a light brushing and thorough rinsing with fresh
water and air-dried. If corrosion is such that 50/50
vinegar will not clean components, it will be best to
replace the components.
6.3.2.3 Germicidal Cleaning Solutions and
Procedure
Sanitizing of the oral nasal mask and regulator of
Kirby Morgan commercial diving masks and helmets
is accomplished using one of four approved germi-
cidal cleansing solutions. There are four examples