TM 5-4220-231-14&P
Table2-1. OperatorPreventiveMaintenanceChecksand ServicesForDivingOperations- (Con't).
B - Before D - During
A - After W - Weekly
ITEM
INTERVAL
ITEM TO BE INSPECTED.
Equipment
is Not
NO.
B
D
A
W
PROCEDURE
Ready/Available
If:
7
0
0
Relief Valve (7). Check relief valve assemblies
Relief valve test /
for test/calibration
date.
calibration is out of date
(1 yr) or test /
calibration tag is not
attached to relief valve.
8
o
Storage Case (8). Inspect case fasteners for
serviceability
and damage.
Replace as required.
0
Inspect rubber seals for deterioration, cuts, or
other damage. Replace if missing or damaged.
0
0
Ensure all mounting
screws are in place and
tightened.
0
0
Inspect all 6 rubber feet for deterioratin or other
damage.
Replace if missing or damaged.
0
Ensure cover fits properly.
Adjust latches as
required.
0
0
Inspect case for dents, gouges, scratches, or
other damage.
Touch up paint as required to
prevent rust.
8
8
8
col
2-20
Change
2
