TM 5-4220-231-14&P
Section V. TROUBLESHOOTING
PROCEDURES
Page
3-10
Introduction
..........................................................
3-8
3-11
General
..............................................................
3-8
3-10 Introduction.
Troubleshootingproceduresinthissectionaregroupedbycommonmalfunctionsor symptoms.
A step
by step
process
is used
to identify
problems,
isolate
components,
and, where
possible,
take
corrective
action.
The most common
and easily corrected
causes
of malfunction
are investigated
first.
3-11
General.
This section
enables
the operator
to identify which component
of the SDASS
is malfunctioning.
In some cases,
subcomponents
(valves,
regulators,
etc.) can be identified
as the cause
of system
malfunction.
If
proper
positioning
of the
regulator
or valves
does
not correct
the
problem,
intermediate
direct support
may be
required.
Prior to troubleshooting,
ensure
that the SDASS
has been properly
set up, IAW Chapter
2.
Inspect
SDASS
hose
connections
for obvious
leakage,
and inspect
the hoses
for kinks or crimps.
NOTE
If inspection
reveals
obvious
leakage
or damage
to a system
subcomponent
(other than
a gage),
request
intermediate
direct support
to correct
the malfunction.
In many cases,
the cause
of a system
malfunction
is not immediately
apparent.
The following
procedures
list the
steps
necessary
to isolate
both the major SDASS
assembly
malfunctioning
and the individual faulty subcomponent
responsible
for the malfunction.
The first, second,
and third sets of troubleshooting
steps address
a pressure
loss at the diver air supply
hose during
ordinary
diving operations
using the DASS,
DACC, and VTA.
The fourth
set
of troubleshooting
steps
addresses
a pressure
loss
at the
recompression
chamber
during
recompression
operations
using the DASS, CRS, and a recompression
chamber.
The remaining
sets of troubleshooting
steps
address
several
simple
problems
and the step(s)
necessary
to solve
them.
This manual
cannot
list all malfunctions
that may occur,
nor all tests,
inspections,
and corrective
actions.
If a
malfunction
is not listed,
or if it is not corrected
by listed corrective
action,
notify your supervisor.
3-8
