FUNCTIONAL TEST (CONT). - TM-3-4240-284-20-P0030

TM 3-4240-284-20&P

2-7. FUNCTIONAL TEST (CONT).

INDICATION/REMARKS

LOCATION

ITEM

ACTION

NOTE

Two technicians are needed for this checkout p r o c e d u r e : on the outside of the

p r o t e c t i v e entrance and the other shelter at airflow valve and silencer.

Airflow Valve and Airflow valve

Make sure that shelter and protec-

Silencer

tive entrance doors are closed.

VALVE AND

SILENCER

L o o s e n hose clamp(26) and re-

move cap (27)from outlet port.

Observe the sliding plate.

The sliding plate (28) will move in a

direction to allow more airflow into

the protective entrance.

R e p l a c e cap(27) on outlet port.

Tighten hose damp (26).

Disconnect cable P15 (29).

Fan and Airflow

Airflow valve

Valve Housing

unit

Hold airduct hose (23) going to the

p r o t e c t i v e entrance and loosen

hose damp (22). Remove airduct

hose.

Skidng plate (24) will move to re-

Reconnect cable P15 (29).

duce airflow into the protective

Replace airduct hose (23). Tighten entrance.

hose damp (22).

Compartment

POWER Switch

Set POWER switch (14) to OFF.

control Module

2-10