TM 5-4220-231-14&P
Table
2-2.
Operator
Preventive
Maintenance
Checks
and
Service
For Chamber
Operations
- (Con't).
B-Before
D-During
A-After
W-Weekly
ITEM
INTERVAL
ITEM TO BE INSPECTED.
Equipment
Is
NO
Not Ready/
B
D
A
W
PROCEDURE
Available
If:
WARNING
Extreme
care
must
be exercised
when
handling
pressure
gages.
Failure to keep
gages
free
of
oil, grease,
rust,
or contaminants
may cause
damage
or inaccurate
readings.
Failure
to
observe
this
warning
may
result
in equipment
failure,
injury, or death
to personnel.
14
0
0
Gages
(14).
Inspect
for damaged
pointers,
Lens
is mis-
cracked
or broken
lens,
missing
or unseated
sing
or broken.
retaining
ring,
or other
visible
damage.
Replace
Pointer
is dam-
if damaged.
aged
or
pointer
is not
calibrated
to 0
psig.
0
0
Ensure
pointer
is set to 0 psig.
Adjust
as
required.
0
Monitor
gages
to ensure
proper
pressure
ranges
Sudden
drop
during
operation.
in pressure
affects
diver's
breathing
(EXECUTE
EMERGENCY
PROCE-
DURES,
para
2-10).
15
0
Interconnecting
hoses
and
connectors
(15).
Out of date.
a)
Inspect
each
hose
for coupling
pullout.
b)
Ensure
each
hose
has
a current
clean
and
hydrostatic
test
date.
0
0
0
Inspect
each
hose
for blisters,
cuts,
abrasions,
Any damage
is
cracks,
or other
damage.
Replace
if damaged
detected.
only
if replacement
during
operation
does
not
impact
the
operation.
0
0
Inspect
each
connector
for dents,
chips,
gouges,
Damage
pre-
scratches,
or other
visible
damage.
vents
hose
from
proper
seating
or has
lost seal.
2-36