Check Your Work - Scott AIR-PAK 75i 2.2 Operating & Maintenance Instructions

RESPIRATORS WITH PAK ALERT SE 7 DISTRESS ALARM
AIR-PAK respirators equipped with a Heads-Up Display AND a PAK ALERT
SE 7 distress alarm, require six (6) "AA" cell batteries for operation. The
six (6) batteries power both the Heads-Up Display AND the PASS device,
so separate batteries in the Gauge Console are not required. The batteries
should be replaced only by a trained maintenance technician in a clean
area known to be nonflammable. Replace batteries as follows:
1. Close respirator cylinder valve, open regulator purge valve letting
out all the trapped air, close regulator purge valve, press the reset
button twice. A fifteen second beep sequence occurs as the residual
air bleeds off. Unit will sound a two tone chirp and green light will
go out.
ALWAYS BE SURE THAT CYLINDER VALVE IS OFF AND THE PASS
DEVICE IS COMPLETELY INACTIVE BEFORE CHANGING BATTERIES.
NEVER REMOVE OR REPLACE BATTERIES WITH SYSTEM PRESSUR-
IZED OR DAMAGE MAY OCCUR TO ELECTRONIC COMPONENTS.
2. When replacing batteries on respirators, remove the cylinder and
place the respirator in a clean, non-hazardous area.
3. Use a Phillips driver to remove the Battery Housing Cover as shown
in FIGURE 26. Carefully remove
the cover and set aside.
4. Remove used batteries from
battery compartment by sliding
them out of the battery compart-
ment.
5. Install six (6) fresh new "AA" batteries of the same type. Always re-
place all batteries at the same time. The battery holder is marked
with the style and orientation of the batteries required. See FIGURE
27. To maintain Intrinsic Safety, use six (6) each of one of the fol-
lowing 1.5 volt AA batteries:
–
Duracell Alkaline MN1500
– Duracell Alkaline MX1500
– Duracell Alkaline PC1500
– Eveready Energizer Alkaline EN91
– Eveready Energizer Alkaline E91.
Do not mix batteries. Verify correct orientation of batteries as shown
on label inside the battery holder.
6. The battery cover must be in-
stalled so that it is water tight after
replacement. Clean the sealing rib
around battery compartment and
sealing face of the cover, shown
in FIGURE 27, by wiping with a
clean damp to remove any dirt or
foreign matter which might pre-
vent a proper seal. Check cover
gasket for tears or cuts. If dam-
age is found, remove respirator
from service and tag for repair by
authorized personnel.
7. Install battery cover and tighten the cover screw until snug. AFTER
REPLACEMENT OF BATTERIES, PERFORM A REGULAR OPERA-
TIONAL INSPECTION BEFORE RETURNING RESPIRATOR TO
SERVICE.
NOTE
USE SCREWDRIVER
TO LOOSEN SCREW
AND REMOVE
FIGURE 26
BE SURE SEALING
SURFACES ARE CLEAN
BEFORE REASSEMBLY
FIGURE 27
Page 41 of 44
S Y S T E M M U S T N O T B E P R E S S U R I Z E D
WHEN BATTERIES ARE INSTALLED. DAM-
AGE TO THE ELECTRONIC COMPONENTS
MAY RESULT IF BATTERIES ARE INSTALLED
WITH SYSTEM PRESSURIZED.
OVERTIGHTENING THE CYLINDER VALVE
MAY CAUSE DAMAGE THAT COULD RESULT
IN LEAKAGE OF AIR FROM THE CYLINDER.
USE NO TOOLS TO CLOSE THE CYLINDER
VALVE.
THE PAK-ALERT SE 7 DISTRESS ALARM
IS INTENDED TO ASSIST IN LOCATING A
PERSON WHO MAY BE IN A LIFE THREAT-
ENING SITUATION. FAILURE TO FOLLOW
THE INSTRUCTIONS FOR OPENING, CHANG-
ING THE BATTERIES AND RE-CLOSING THE
BATTERY COMPARTMENT MAY RESULT IN
COVER
DAMAGE WHICH COULD CAUSE FAILURE
OF THE PASS DURING A LIFE THREATENING
EMERGENCY OR COULD CAUSE A FIRE OR
EXPLOSION IN A FLAMMABLE OR EXPLO-
SIVE ATMOSPHERE POSSIBLY RESULTING
IN INJURY OR DEATH.
BATTERIES MUST ONLY BE CHANGED IN AN
AREA KNOWN TO BE NONFLAMMABLE.
CHANGING THE BATTERIES IN A FLAMMA-
BLE ATMOSPHERE MAY CAUSE AN IGNI-
TION WHICH COULD RESULT IN SERIOUS
INJURY OR DEATH.
T O R E D U C E T H E R I S K O F E X P L O S I O N
USE BATTERIES ONLY FROM THE LIST PRO-
VIDED, DO NOT MIX OLD BATTERIES WITH
UNUSED BATTERIES, AND DO NOT MIX
BATTERIES FROM DIFFERENT MANUFAC-
TURERS. UNAUTHORIZED SUBSTITUTION
OF COMPONENTS MAY IMPAIR INTRIN-
SIC SAFETY AND CAUSE AN EXPLOSION
WHICH COULD LEAD TO SERIOUS INJURY
OR DEATH.

CHECK YOUR WORK!

BEFORE ASSEMBLY OF BATTERY COVER,
CHECK TO SEE BOTH BATTERIES ARE
FRESH, NEW BATTERIES OF THE TYPE IN-
DICATED ABOVE AND THAT THEY HAVE
BEEN INSTALLED PROPERLY.
P/N 595236-01 Rev. B 10/11
CAUTION
CAUTION
WARNING
WARNING
WARNING