There are two different housing configurations
available, as shown in figure 10-20. You can identify
the housings by the mounting flange configuration,
number and arrangement of mounting fasteners,
location of the sequence switch, and the cable
arrangement. These configurations are supplied so
aircraft manufacturers have flexibility in mounting
You don't remove the housing assemblies from the
aircraft when loading. You do remove the dispenser
assembly from the housing assembly by unlocking the
four positive-lock studs. Move the dispenser assembly
to a designated area and load it. Then, return it to the
aircraft and reinstall it in the dispenser housing. Safety
switches, installed in the aircraft near the dispenser
housings, make the dispenser's assemblies electrically
safe when the safety pin or flag assemblies are
installed. When the dispensers are loaded, the safety
pin or flag assemblies must remain installed until just
The rear of the housing assembly has a dispenser
interconnect that electrically connects the dispenser
assembly to the system. When you are installing the
dispenser assembly into the housing assembly, you
should use a guide pin to ensure proper alignment of the
REVIEW NUMBER 4 ANSWERS
The CUU-44 impulse cartridge is used to fire
flares from the SUU-25F/A.
28 volts of dc fire the impulse cartridge.
When performing organizational-level main-
tenance on the SUU-25F/A, you should look
for cracks or breaks in the aft retaining locks
or suspension lugs, unburned pellets or
obstructers in the breech sleeve, or frayed or
broken breech leads.
Two sequencer switches (fig. 10-21) are used in a
assemblies. The sequencer switch is a solenoid-
actuated, multideck, rotary stepping switch contained
in a hermetically sealed case.
Figure 10-20.Dispenser housings.