6
Panther/Cougar/Puma SCBA Operation Manual
and 60-minute durations. An all-aluminum cylin-
der is available with a maximum working pres-
sure of 2216 psig only.
WARNING
The backpack must never be used as a •
rescue device attachment point.
ONLY grasp the cylinder valve hand-•
wheel to open or close the valve; DO
NOT pick up or carry a cylinder by
the handwheel, drop a cylinder on the
handwheel, or bump the handwheel,
as this may cause the cylinder valve
to inadvertently open, which may lead
to the cylinder becoming airborne un-
der the thrust of air released from the
valve, causing injury or death. ALWAYS
pick up and carry an air cylinder by the
cylinder body.
Failure to comply with this Warning may •
lead to personal injury, illness, or death.
B. First Stage Regulator
The rst stage regulator contains a pressure reducer,
audible alarm, and intermediate pressure hose.
Panther-style First Stage with Alarm3.
The rst stage lowers cylinder air pressure to a.
approximately 100 psig. The relief valve ac-
tivates to protect the system when the regu-
lated pressure exceeds 200 to 225 psig.
The Panther-style rst stage regulator is b.
equipped with either a whistle, warbling whis-
tle, or bell audible alarm. The low pressure
SCBA audible alarm activates at 510 to 598
psig (2216 psig system) or 690 to 810 psig
(3000 psig system); the high pressure SCBA
audible alarm activates at 1035 to 1215 psig
(4500 psig system). The audible alarm will
continue to sound until air pressure drops be-
low 200 psig.
MARK 2-style Bell Alarm4.
The rst stage regulator lowers cylinder air a.
pressure to an intermediate pressure of ap-
proximately 120 psig. An automatic backup
system maintains a safe ow of air in case of
a malfunction.
The audible alarm operates in two modes, b.
ringing at a slow rate when the quantity of air
in the cylinder has dropped to approximately
25% of capacity, and ringing rapidly when a
failure occurs in the rst stage system. The
low pressure SCBA bell alarm rings at 510
to 598 psig (2216 psig system) or 690 to 810
psig (3000 psig system); the high pressure
SCBA bell alarm rings at 1035 to 1215 psig
(4500 psig system); the bell alarm will con-
tinue ringing until air pressure drops below
200 psig.
C. Gauge/Heads-Up Display (HUD)
WARNING
The Heads-Up Display (HUD) may only •
be used with the 2520XX series Twen-
tyTwenty Plus facepiece.
If the low battery alert activates (am-•
ber LED on the backpack- mounted
transducer module ashes every two
seconds) during storage, or if the am-
ber LED on the backpack-mounted
transducer module does not ash at all
during storage, the battery must be re-
placed before using the SCBA.
Activation of the visual alarm (ash-•
ing red LED) portion of the HUD may
or may not coincide with the audible
alarm (i.e., bell, whistle, etc.) on the
SCBA. As soon as the rst alarm acti-
vates, PROCEED IMMEDIATELY TO A
SAFE AREA.
You must have binocular vision (vision •
from both eyes) to see and interpret
the display correctly. Your visual acu-
ity while wearing the facepiece must
meet the requirements set forth by the
authority having jurisdiction over your
operation and/or work place.
Failure to comply with this Warning may •
lead to personal injury, illness, or death.
NOTE
The Panther SCBA comes equipped with •
the Heads-Up Display (HUD).
The HUD is optional on the Cougar SCBA, •
but may only be used with the 2520XX se-
ries TwentyTwenty Plus facepiece.
The Puma SCBA cannot be equipped with •
a HUD.
The HUD is mounted on the second stage regulator.
When the second stage regulator is installed in the Pan-
ther TwentyTwenty Plus facepiece, the display can be
seen through openings in the facepiece nozzle cover.
When the cylinder valve is opened, the HUD will ac-
tivate automatically, and will indicate the air pressure
remaining in the cylinder. The display consists of four
green LEDs, representing Full, ¾, ½, and ¼. At full cyl-
inder pressure, all four LEDs are lit. As the air pressure
in the cylinder decreases, the LEDs turn off one at a
time, thereby indicating the air pressure status. When
the pressure drops below 50% of cylinder capacity, the
LED representing ½ cylinder capacity starts to ash,
and continues to ash for a short time (approximately
20 seconds) before returning to continuously lit. When
the pressure drops to ¼ (25%) of cylinder capacity, the
last green LED turns red and begins to ash, thereby
giving the user a visual alarm of low air pressure in ad-
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