QUICK-FILL SYSTEM OPERATION
FILLING INSTRUCTIONS FOR QUICK-FILL SYSTEM
1. To connect the quick-fill hose to the secondary air
supply:
a. Turn the air supply on.
The following hoses can be used to connect to a sec-
ondary air supply:
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 URC Assembly or
shoulder mounted quick-fill fitting.
a. Remove the rubber dust cap from the male inlet fit-
ting on the URC Assembly or 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 fit-
ting of the URC Assembly or quick-fill fitting until it
snaps in place. Pull on the hose to be sure the con-
nection is secure. Filling immediately begins when
the female fitting fully engages with the URC
Assembly or quick-fill 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. After approximately 45-60
seconds, pressure between the secondary air supply and
the air mask cylinder will be equal.
3. Compare the air mask pressure gauge or FireHawk
M7 Control Module reading to the secondary air sup-
ply 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 is on the corresponding color
band.
QUICK-FILL SYSTEM EMERGENCY OPERATIONS
1. If you are 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. If you are transfilling in a contaminated atmosphere
and the dust cover will not stay on the male fitting
because air is leaking:
a. Immediately reconnect the quick-fill hose to seal off
the leak and return to fresh air.
b. If you cannot reconnect the hose, reach behind and
close the cylinder valve. Air pressure in the regulator
will drop, and the leak will slow down.
c. Quickly replace the protective dust cap on the male
fitting. This will form a redundant seal.
d. Open the cylinder valve and return to fresh air
immediately. The dust cover prevents dirt, water,
and debris from entering the fitting, and acts as a
redundant seal.
TRANSFILLING BETWEEN AIR MASK FROM MSA
(EMERGENCY BREATHING SYSTEM)
NIOSH DOES NOT approve the use of the URC
Assembly to transfer air from the cylinder of one air
mask to another air mask. Failure to follow this warn-
ing can result in serious personal injury or death.
Note:
The air mask with the higher pressure reading is the
donor. The air mask with the lower pressure is the receiv-
er. Transfilling between users of air mask should be per-
formed only during life-threatening emergencies or simu-
50
TAL 803 (L) Rev. 1 - 10086011
Order MSA P/N
Description
485391
Male stainless steel quick-disconnect
with SAE-10 thread, complete with
dust cover (for use as a fitting for
customized refilling systems).
25-FOOT QUICK-FILL HOSES
Note: Female quick-disconnect fittings
include dust covers.
485532
With two female quick-disconnects
487906
With a female quick-disconnect on one
end and a SAE-4 fitting on the other.
487907
With a female quick-disconnect one
end and a CGA-347 (4500 psig) outlet
on the other.
487908
With a female quick-disconnect on one
end and a CGA-346 (2216 psig) outlet
on the other.
487909
With a female quick-disconnect on one
end and a CGA-347 (4500 psig)
coupling nut on the other.
487910
With a female quick-connect on one
end and a CGA-346 (2216 psig)
coupling nut on the other.
Summary of Contents for FireHawk M7 Responder
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