TM 5-4220-225-14
Table 2-1. Operator Preventive Maintenance Checks and Services (Cont).
B - Before
D - During
A - After
Q - Quarterly
Interval
Item
Item to be Inspected.
Equipment Will Be
No.
B
D
A
Q
Procedure
Reported Not Ready If
HELMET ASSEMBLY (Cont)
•
b. Wash the exposed helmet surfaces with clean
freshwater. A mild detergent may be used. Rinse
thoroughly with clean freshwater if detergent is
used.
NOTE
Ensure the areas under the edges of the liner,
mixed gas ducting, and other crevices are
cleaned.
•
c.
Clean viewports with clean freshwater only.
•
d.
Dry the helmet thoroughly with a clean, lint-free
cloth.
•
e.
Wipe down the cleaned exposed helmet surfaces
with two ounces of tincture-of-green soap mixed
with one gallon of hot (1400F) water.
•
f.
Rinse off disinfectant with clean freshwater. Dry
thoroughly with a clean, lint-free cloth.
•
g.
Ventilate the helmet thoroughly prior to stowage
or use.
h.
Remove the test plug and reinstall the air supply
Inspection reveals any of the
diffuser and ear clearing pad.
defects sighted above or
any defect that renders the
helmet inoperable.
2-9
