Clean Face Port; Check Moving Parts; One Way Valve Check - Kirby Morgan KMB-18 A/B Operation And Maintenance Manual

10) Be sure to inspect the bands themselves (16 &
68). The welds must show no signs of cracking or
parting.
DANGER: If the bands become
loose the hood and face seal could sepa-
rate from the mask. This would cause the
mask to flood which could cause drown-
ing.

2.2.2 Clean Face Port (27)

Remove any sand or dirt on the interior of the face
port (27) which might cause scratches when anti-
fogging solution is applied prior to the next dive.
Fig. 2.1 Clean the face port prior to use.

2.2.3 Check Moving Parts

Check all moving parts, such as the regulator
adjustment knob (47), the defogger control knob
(85), auxiliary knob (100), and the nose block
device knob (34) to ensure smooth and proper
operation.
Document # 010518001 © Copyright 1970-2003 Kirby Morgan Dive Systems, Inc. All rights reserved.
KMB 18 & 28 MANUAL
Fig.2.2 Moving parts, such as the regulator adjustment
knob must be checked before the Band Mask is put on
line.
2.2.4 One-Way Valve (104) Check
There are two ways to check the one-way valve
(104). Check both ways if possible.
1) Leaving the auxiliary knob (100) open (on) and
not hooked up to the supply hose, try to suck air
out of the adapter (105). If any air comes out, the
one-way valve must be replaced.
WARNING: The one way valve must
be tested dailly, prior to commencement
of diving operations. Failure of the one
way valve could cause serious injury or
death.
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