TM 1-1510-223-10
SYS NOT RESET annunciator
(amber)
will
illuminate.
DISPENSER
COMPLETE
annunciator (green) will remain
illuminated.
b.
Reset FLARE counter to 30. ALL
FLARES EXPENDED shall not be
displayed.
Do
not
depress
MANUAL
SYSTEM
RESET
switch.
NOTE
When the MANUAL SYSTEM RESET
switch is pressed and released, and 28 volts
DC power is being applied, the sequencer
switch inside the dispenser assembly resets,
making an audible sound as it rotates. If the
sequencer switch has been previously reset
or if the switch is in position 12 or 24, there
will be no such sound.
c.
Rotate TEST SEQUENCE switch
counter-clockwise
to
STRAY
VOLT
position.
STRAY
VOLTAGE
annunciator
(red)
should not illuminate.
d.
Rotate TEST SEQUENCE switch
counter-clockwise
to
START/HOME position.
NOTE
When the TEST SEQUENCE switch is
turned to the START/HOME position, the
DISPENSER COMPLETE annunciator will
extinguish,
the
STRAY
VOLTAGE
annunciator will illuminate, and then will
extinguish when passing through the TS
RESET position.
8.
Remove M-91 test set from right
fuselage dispenser assembly.
c.
Chaff Dispenser (Right Nacelle) - Preliminary
Procedure.
1.
C-F selector switch on dispenser - C
(chaff).
2.
Set TEST SEQUENCE switch on test
set to START/HOME position.
3.
Clean
dust,
foreign
particles,
or
moisture from breech and mounting
plate of dispenser.
4.
Connect M-91 test set to breech
assembly of right nacelle dispenser
assembly. Secure both mounting studs
uniformly tight using ball hexagonal key
screwdriver provided in test set carrying
case.
5.
Obtain test set power cable from loose
tools
and
connect
cable
between
exterior connection J1 (28V DC) on
aircraft fuselage above trailing edge of
wing and aircraft power +28V DC (J1) of
test set.
6.
Remove
safety
pins
from
right
equipment rack aft of copilot's seat, and
on top skin of right wing.
7.
Provide aircraft power to system by
resetting
M-130
POWER
circuit
breaker.
8.
ASE mode select switch (multifunction
display, fig. 4-2) - Depress to call up
ASE control page.
9.
L3 line selector switch - Depress to set
DISPENSER to ARM.
10.
L4 line selector switch - Depress to set
CHAFF to MAN.
11.
R5 line selector switch - Depress to call
up ASE SETUP page.
12.
ASE/ACS keyboard unit (fig. 4-3) - Key
in 30 (30 will be displayed in scratchpad
on MFD), then depress line select
switch R1 to set CHAFF COUNT to 30.
NOTE
When the test set is installed on the
dispenser assembly and 28 volts DC aircraft
power is being applied, the sequence switch
inside
the
dispenser
assembly
resets,
making an audible sound as it rotates.
There will be no such sound if the
sequencer switch has been previously reset
or if switch is in position 12 or 24.
d.
Chaff Dispenser (Right Nacelle) System Test
Procedure.
1.
ASE mode selector switch - Depress to
return to the ASE control page.
2.
Reinstall safety pins one at a time.
PWR
FAIL
shall
appear
below
DISPENSER on MFD.
3.
Remove the safety pins and verify
DISPENSER is set to ARM on MFD.
NOTE
On test set, TS PWR ON annunciator
(clear) illuminates and remains illuminated
throughout the test sequence until aircraft
power to test set (via test set power cable) is
disconnected or shut off.
4.
Perform the following operations on the
M-91 test set.
a.
Press to test all four annunciators
on test set. Each annunciator will
illuminate.
4-7
