QUICK-FILL SYSTEM
1. To connect the quick-fill hose to the secondary air
supply.
a. Turn the air supply on.
If there are leaks from either female fitting, or along
the hose, depressurize the hose and correct the prob-
lem. Such leakage can result in increased fill time.
2. Attach the quick-fill hose to the shoulder mounted
quick-fill fitting.
a. Remove the rubber dust cap from the male quick-fill
fitting. Be sure that the cylinder valve is fully
opened.
b. Remove the rubber dust cap from the female fitting
on the quick-fill hose.
c. Push the female fitting of the hose onto the male
quick-fill fitting until it snaps in place. Pull on the
hose to be sure the connection is secure. Filling
immediately begins when the female fitting fully
engages with the male fitting.
d. After approximately 45-60 seconds, the pressure
between the secondary air supply and the air mask
cylinder will be equal.
NOTE:
If the secondary air supply does not have a suffi-
cient volume of air, the air mask cylinder will not reach
maximum service pressure.
3. Compare the cylinder pressure gauge or FireHawk M7
Control Module (integrated PASS version) or
NightFighter HUD Transmitter (without integrated
PASS version) reading to the secondary air supply
pressure gauge reading. If the readings are the same,
pressure is equal.
4. To disconnect the quick-fill hose after transfilling, pull
the gray sleeve back. The hose fitting and the male fit-
ting will separate. A hiss or pop may be heard as the
fittings separate and the high pressure air is sealed
off.
5. Immediately install the dust cover on the male fitting.
6. The air mask cylinder is ready for service if the cylin-
der pressure gauge needle is on the corresponding
color band.
TRANSFILLING BETWEEN AIR MASKS
NOTE:
The air mask with the higher pressure reading is
the donor. The air mask with the lower pressure is the
receiver. Transfilling between users of air mask should be
performed only during life-threatening emergencies or sim-
ulated training exercises. Both donor and receiver must
return to fresh air immediately following the procedure.
DO NOT transfill if the donor's audible alarm is ringing
or FireHawk M7 HUD or I-HUD /FireHawk M7 Control
Module are flashing. Misuse can result in shorter
escape time to return to fresh air, causing serious
injury or death.
The audible alarm begins ringing and heads-up display
system begins flashing to indicate that the pressure in the
cylinder has been reduced to 25% of its rated working
pressure. Remaining service time must be used for
escape to fresh air. If the donor's audible alarm begins
ringing or FireHawk M7 HUD or I-HUD/FireHawk M7
Control Module (integrated PASS version) begins flashing
during transfilling, the donor should disconnect and pre-
serve his escape time.
1. If the donor's alarm is not ringing and FireHawk M7
HUD or I-HUD/FireHawk M7 Control Module (integrated
PASS version) are not flashing and you have sufficient
air to transfill to a receiver, (greater than 1000 psi for
2216 psi air masks and greater than 2000 psi for 4500
psi air masks), follow these steps.
a. Remove the 3 foot emergency transfill hose from its
protective pouch.
b. Remove the rubber dust cover from both female fit-
tings on the quick-fill hose assembly.
c. Remove the rubber dust cover from the male Quick-
Fill System fitting.
d. Push the female fittings on to the male fittings until
they click in place. Pull on the hose to be sure it
snapped in place.
If serious leakage is noticed from either of the two
female fittings, or anywhere along the hose, discon-
nect the female fittings and return to fresh air immedi-
ately. Misuse can result in serious injury or death.
e. After approximately 45-60 seconds, pressure
between the air mask cylinders will be equal.
f. Disconnect the quick-fill hose from the air mask by
pulling the gray sleeve back on both ends. A hiss or
pop may be heard as the fittings separate and the
high pressure air is sealed off.
g. Immediately install the dust cover on the quick-fill
male fitting. The dust cover prevents dirt, water, and
debris from entering the fitting, and acts as a redun-
dant seal.
QUICK-FILL FITTING LEAKAGE
1. When transfilling in fresh air and the dust cover will
not stay on the male fitting because air is leaking, cor-
rect the condition before using the air mask.
2. When transfilling in a contaminated atmosphere and
the dust cover will not stay on the male fitting because
46
TAL 1705 (L) Rev. 18 - 10082858
Summary of Contents for FireHawk M7
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