Specifications

DONNING
USING THE NIGHTFIGHTER HEADS-UP DISPLAY SYS-
TEM, ICM UNIT GAUGE, AUDI-LARM ALARM, AND
URC ASSEMBLY
1. Grasp the mask mounted regulator and push the slide
button.
2. Check that the red
bypass knob is fully
closed (clockwise).
3. Reach behind and
open the cylinder valve
fully. Listen for the
audible alarm with URC
Assembly to ring briefly
as pressure in the sys-
tem increases.
Listen for any hiss or pop sounds from the Audi-Larm
Alarm with URC Assembly, if heard do not use the
SCBA. Return it to an MSA trained or certified repair-
person. Failure to follow this warning can result in
serious personal injury or death.
4. As the pressure rises from 50 to 200 psig, both visible
and audible alarms activate automatically, indicating
that the alarms are functional and "cocked." When the
system is fully pressurized, the alarms enter the
Monitor (normal) Mode.
If the alarm with URC Assembly fails to ring, ICM Unit
Gauge or NightFighter Heads-Up Display System fails
to light and tone, do not use the apparatus. The SCBA
must be checked and corrected for proper operation
by an MSA trained or certified repairperson before
using. Failur
e to follow this warning can result in seri
-
ous personal injury or death.
5. No air should flow from
t
he regulator. If it does,
r
epeat steps 1 and 2.
6. Check the Pressure Gauge, NightFighter Heads-Up
Display System, ICM Unit and Cylinder Gauges. It
should be within 110psig for 2216psig; 150psig for
3000psig; 225psig for 4500psig.
If your readings do not agree with these cylinder val-
ues, do not use the SCBA. Return it to an MSA trained
or certified repairperson.
7. Check for bypass oper-
ation. Grasp the r
ed
knob and turn it
counter-clockwise.
Listen for airflow, and
then turn it OFF. Close
cylinder valve fully.
8. Check for air leaks. Open cylinder valve fully to pres-
surize system, then close the cylinder valve and watch
the Pressur
e Gauge, NightFighter Heads-Up Display
System or ICM Unit Gauge.
If the needle drops more than 100psi in 10 seconds,
do not use the SCBA. The SCBA must be repair
ed;
otherwise, reduced service life may result.
9. Crack the bypass valve slowly to bleed of
f pressure
until the NightFighter Heads-Up Display System or
ICM Unit Gauge dr
ops below:
530psig-approximately (low pressure system)
750psig-approximately (3000psi system)
1175psig-approximately (high pressure system)
The NightFighter System will illuminate; ICM Gauge and
Audi-Larm Alarm with URC Assembly will sound.
Note: The NightFighter Heads-Up Display System will
automatically tur
n itself OFF
, approximately 60 seconds
10
TAL 606 (L) Rev. 16 - 10023638
WARNING
CAUTION
CAUTION
CAUTION