TM 10-5410-224-14
(14) Repeat steps (1) through (13) for other
(4) Remove seal assembly from the opening in
ECU.
foldout end wall left by the lowered ECU panel.
g. Ventilation Fan Installation. To install the
(5) Remove four shock mounts and bolts from
ventilation fans, proceed as follows:
bottom of ECU.
(1) Loosen eight thumbscrews to release
(6) Use two men to place ECU on shelf.
clamps holding closeout panel assembly to foldout
(7) Lift one side of ECU and slip two shock
end wall selected for installation of ventilation fan
mounts provided with the ECU over the holes in
shelf from which plugs were removed in step (1).
(2) Remove closeout panel assembly.
(8) Thread two bolts with sleeves and washers
(3) Detach ventilation fan from stowed
(provided with ECU) through the recessed holes in
location shown in figure 3-1. Store removed
shelf, through the shock mounts, and into the
ECU.
closeout panel assembly in this location.
(4) Install ventilation fan in opening and
(9) Repeat steps (7) and (8) on other side of
ECU .
secure with eight thumbscrews and clamps.
(10) Put plugs removed in step (1) back into
ECU panel (shelf').
Check that fan switch located above the
(11) Inside the shelter, replace seal assembly,
fan is in the OFF position.
(5) Connect cable from fan switchbox to
removed in step (4).
ventilation fan.
(12) Remove ECU modification seal from
equipment chest and install alo bottom of ECU.
Since the input power to the shelter is
lethal, this procedure must be ac-
Make sure that both circuit breakers CB2
complished by a qualified electrician.
and CB3 on circuit breaker panel are in the
(6) Connect external power cable between
off position before proceeding with the next
power source and receptacle J1 on shelter power
step.
entrance panel (see figure 2-1 and table 2-1).
(13) Attach power cable to ECU (fig. 3-11).
(7) Repeat steps (1) through (6) for other
Circuit breaker CB2 and CB3 apply power to the
ventilation fan.
ECU's.
