TM
3-4240-309-20&P
1. MASK SWITCH/lNDICATOR LIGHT FLASHING AND/OR WARNING HORN SOUNDING (CONT).
Proceed to page 2-22.
Proceed to page 2-24.
Proceed to page 2-20.
Reconnect PE airduct
hose to port marked TO
PROT ENT on filter unit
airflow valve. Open all
interconnecting doors
Proceed to page 2-29.
between vans 1, 2, 3,
and 4. Reconnect plug
P5 to J5 at PDUs on
vans 1 and 4. Repeat
functional test (p. 2-3).
2-28