PS Magazine - TB 43-PS-740
PS, The Preventative Maintenance Monthly
ISSUE 740
JULY 2014
56
PS 740
JUL 14
•±
Position LLRCs to allow easy inspection and access of external humidity indicators or
pressure relief valves. The storage area should be well-lit so the humidity indicator’s
color can be easily viewed.
•±
Make periodic inspections of container conditions, humidity and other external
indicators for:
±
–
condensation, leakage or seepage.
±
–
functional damage to suspension.
±
–
cracks, holes and/or hull deformities that impact closing or sealing the container.
±
–
dents that interfere with the container envelope.
±
–
missing or damaged hardware.
±
–
open or unsecured containers.
±
–
wood rubbing strips that are not ISPM 15 compliant.
±
–
condition of seals and packaging material.
±
–
presence and condition of desiccant.
±
–
presence of corrosion prevention compounds.
±
–
condition of the component/component pack.
•±
If the humidity indicator shows that humidity exceeds the allowed tolerance of the
contained component (pink or white in color), follow the procedures listed below,
depending on container type.
•± Containers±with±no±desiccant±port.±
±
–
Open the container.
±
–
Take corrective maintenance steps per the TM.
±
–
Replace indicator assemblies and desiccants.
•± Containers±with±a±desiccant±port.±
±
–
Replace desiccant.
±
–
Reinspect the container after 24 hours (up to two times). If the indicator stays pink
or white, corrective maintenance must be done. Follow the applicable TM and
procedures for containers requiring pressurization using dry air or nitrogen. When
the indicator is blue, follow normal inspection guidelines.
Supply support activities (SSAs) and tech supply activities should keep an on-
hand supply of humidity indicator cards, humidity indicator plugs and color-change
humidity indicator disks for use in replacing expired cards or discs. Use the following
information to order humidity indicator cards and desiccants:
•±
Indicator, humidity, card (large), NSN 6685-01-591-2831
•±
Indicator, humidity, card (small), NSN 6685-00-052-1865
•±
Humidity indicator plugs. There are many options here, so search FED LOG with the
following keywords: INDICATOR, HUMIDITY, PLUG
•±
Color-change humidity indicator discs meeting requirements of SAE AS26860 and
MIL-I-8835. Search FED LOG with the following keywords: INDICATOR, HUMIDITY,
CARD or search using the part number MIL-I-8835.
•±
Desiccant, activated, MIL-D-3464. Again, there are a variety of desiccant types, so
search FED LOG using the part number MIL-D-3464.
Additional±Guidelines
NSN
UI
Item
Bag Dimensions
Width x Length x Thickness
NSN
1
2
4
8
16
5 x 3
1
/
2
x
1
/
4
5 x 4
3
/
4
x
3
/
8
5 x 6 x
1
/
2
5 x 8 x 1
1
/
8
5
3
/
4
x 10 x 1
1
/
2
Unit
Size
Desiccant Examples
When replacing container
components, check
all
seals and
humidity indicator assemblies and
place the prescribed quantity of
desiccant inside (check the TM or
LLRC data plate).
Close or reseal the container
using all bolts to secure
the lid to the container base
when applicable.
When shipments are
delayed, desiccant
can become saturated.
Check containers for
increasing humidity.
if it rises above 50
percent, or the humidity
indicator changes color,
it’s time to replace the
desiccant.
The Logistics Support Activity’s Packaging,
Storage and Containerization Center (PSCC) can
help units keep COSIS standards and maintain
proper storage for Class IX components.
Call DSN
7
95-6038,
(5
7
0) 615-6038, or email:
logsapscc.sr.tyad@us.army.mil
inspections are
key
to
corrosion prevention,
saving time, component
parts, money and lives.
The Army’s
doing its part.
Be sure you do
yours!
740 56-57.indd
1-2
5/27/14
5:27 PM
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