TM
3-4240-309-20&P
LOCATION
INDICATION/REMARKS
ACTION
ITEM
NOTE
Two technicians are needed for this checkout procedure: one on the outside of the PE and the other on
top of the shelter at the airflow valve and silencer.
NOTE
This part of the functional test applies to vans 1 and 4 only. First perform the functional test on van 1
and then repeat the steps on van 4.
Ensure that all van doors
are closed. Ensure that
Airflow valve
Airflow Valve and
PE doors on vans 1 and 4
Silencer
are closed.
Loosen hose clamp (24)
and remove protective
cap (25) from outlet port.
The sliding plate (26) will
Observe the sliding plate.
move in a direction to
allow more airflow into
the PE.
Replace protective cap
(25) on outlet port.
Tighten hose clamp (24).
Disconnect cable
AirfIow valve
Fan and Airflow Valve
P15 (30).
Housing Unit
Hold airduct hose (28)
going to the PE and
loosen hose clamp (27).
Remove airduct hose.
Wait about 15 seconds
Sliding plate (29) will
move to reduce airflow
and reconnect cable P15
into the PE.
(30).
Replace airduct hose
(28). Tighten hose
clamp (27).
After van 4 is completed,
Repeat this test on the
proceed to next page.
airflow valves on van 4.
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