PS Magazine - TB 43-PS-717
PS, The Preventative Maintenance Monthly
ISSUE 717
AUGUST 2012
50
PS 717
AUG 12
B
efore you wash, drive or transport your S-842/G shelter or S-842A/G arctic
shelter, take this simple precaution: Roll the fabric cover down over the environmental
control unit (ECU), then secure the cover with fasteners.
The cover helps protect the ECU’s
condenser coils when the ECU is shut
down. If you leave the cover rolled up
and the condenser exposed, water can
corrode the coils.
Once the coils are corroded, the
condenser
can’t
let
heat
escape.
Now the ECU won’t work, and your
shelter has no heat, air conditioning
or ventilation. In hot weather, rising
temperatures inside the shelter can
damage
electronic
components.
What’s more, you’re facing expensive
repairs or maybe even replacement of
the condenser at a cost of $14,000.
RF-ITV Global Help Desk
Call the Radio Frequency In-Transit Visibility (RF-ITV) Global Help Desk at DSN 94 plus
(800) 877-7925, (800) 877-7925, or email:
help.rfitv@us.army.mil
You can also get help on AKO by sending an instant message to the user name:
help.rfitv
Inspect and Repair
Look over the fabric cover for holes, tears, mildew, fraying or worn edges. Test
the snaps to make sure they close properly. If you Fnd anything you can’t repair
yourself, refer it to Feld maintenance.
Cover Up, Cover Down
Here are the rules for using the ECU’s fabric cover:
EOD Publication Released
Army Tactics, Techniques, and Procedures (ATTP) 4-32,
Explosive Ordnance Disposal
Operations,
was released in December 2011. It offers doctrinal guidance to commanders,
staffs, and leaders at all levels who are responsible for EOD operations. It’s available on
the Army Publishing Directorate’s website:
•
The ECU is running in the COOL
mode. With the cover up, air can
flow across the condenser coils to
remove heat from the refrigerant.
•
The shelter needs ventilation, and
the ECU is drawing fresh (outside)
air into the shelter in any mode.
•
Washing, driving or transporting the
vehicle.
•
The condenser is not in use. (The
condenser is used only when the ECU is
in COOL mode.)
•
The ECU is running in the HEAT mode
without fresh air.
•
The ECU is in a shutdown period.
•
The ECU and the shelter are in storage.
Fabric Cover
Protects ECU
Roll the cover
UP
when…
Roll the cover
DOWN
when…
Water corrodes an unprotected condenser
a few squirts of this
high-pressure water
will have my truck
clean in
no
time!
wait!
you need to
cover me
first!
S-842/G and
S-842A/G Shelters…
717 50-51.indd
1-2
7/3/12
3:22 PM
Click here for a copy of these articles to save or email.
Back to Top Back to Top
