© ⅯⅯⅩⅢ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130318002
89
Kirby Morgan
®
37SS
Chapter 7 - Bent Tube Assembly
B
WARNING
A leaking Emergency Gas Valve as-
sembly can cause the diver to exhaust
his entire EGS (bailout) without his
knowledge. This may lead the diver
to mistakenly assume his EGS supply
is available when it is not. This could
lead to panic or drowning in an emer-
gency. Any worn or damaged compo-
nents must be replaced.
7.7 Bent Tube Assembly
7.7.1 General
The bent tube assembly provides breathing gas flow
from the side block assembly to the regulator assem
-
bly. Both ends of the bent tube assembly disconnect
for complete removal. The o-ring and the Teflon
®
o-ring should be replaced during normal overhauls
or any time these components are deemed unservice
-
able.
These components do not require replacement during
field repairs providing a careful visual inspection does
not reveal wear or damage. All soft goods should be
carefully cleaned in accordance with KMDSI proce
-
dures prior to inspection for reuse.
7.7.2 Removal of the Bent Tube Assembly
Tools Required:
11/16
open end wrench
2 ea.
7/8
wrenches
1) Always start removal at the side block end. Loosen
the tube with the
11/16
inch wrench. The free swivel
-
ing mount nut on this end of the bent tube can be
unthreaded completely and can slide down the tube.
Always start removal at the side block end.
2) Loosen the lower bent tube nut by using the two
7/8
inch wrenches. Place one wrench on the bent tube
nut and the second on the jam nut. Only turn the outer
nut on the bent tube to loosen the bent tube.
The mount nut can then be rotated until free of the
regulator inlet nipple tube threads.
3) With the two mount nuts free; the bent tube as
-
sembly can be pulled straight out of the regulator inlet
nipple. The bent tube assembly can be rotated back
and forth to aid removal, if necessary.
Always use a torque wrench to tighten the fittings on the
bent tube assembly.
