Special Note Regarding Ports - Kirby Morgan 77 Operation And Maintenance Manual

Kirby Morgan 77
®
WARNING
tions to clean the face port. Improper ap-
plication of cleaning agents may cause
the port to fail without warning. This
could lead to drowning.

8.5.4 Special Note Regarding Ports

NOTE: There are two different face ports available
for KMDSI helmets and masks. One port specifi-
cally fits the Kirby Morgan helmets and the KMB
18. One port only fits the KMB 28 Band Mask.
These two ports are not interchangeable. The face
port for the SuperLite -17A/B the SuperLite
®
SuperLite -27, SL-17C, the Kirby Morgan 37, 47,
®
57, 77 and the KMB 18 Band mask is Part #520-
004. The face port for the KMB 28 Band Mask is
Part #520-128.
8.5.5 Port Retainer
The port retainer is made of stainless steel like most
of the components of the helmet. The nose block
guide is threaded into the port retainer, and is easily
replaced if damaged. Under normal use, the port re-
tainer should never need replacement.
132
The face port is very
strong. However, cer-
tain chemicals will
attack the port and
weaken it. Some sol-
vents used for grease
removal will also at-
tack the port. Use
only mild soap solu-
-17K,
®
© ⅯⅯⅩIⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130318003
WARNING
Use only genuine KMDSI face ports. An
aftermarket face port's thickness or out-
er periphery may be incorrect and cause
the helmet to flood. It could also be made
of inferior materials causing it to fail. This
could result in serious injury or death.