Using The Respirator - Scott 2.2 Operating & Maintenance Instructions

USE OF RESPIRATOR CONTINUED...
6. Always check the facepiece seal, the system seal, and the operation
of the end of service alarms using the following procedure:
a) Completely close the cylinder valve by pushing in on the cylinder
valve and rotating it clockwise.
b) Breathe on respirator. As the air pressure falls in the respirator,
one or more of the end of service indicator alarms will actuate.
c) Immediately on actuation of any end of service indicator alarm,
hold breath momentarily and make certain that the VIBRALERT
and HEADS-UP DISPLAY both actuate (rapid clicking of the VI-
BRALERT Alarm, rapid flashing of the HEADS-UP DISPLAY red
light.
d) Resume breathing on the respirator until all air stops flowing from
the breathing regulator.
e) NEGATIVE PRESSURE lEAK TEST: Inhale slowly and hold
breath momentarily. No leakage of air shall be detected into the
facepiece and the facepiece shall be drawn slightly to the face.
f) Open cylinder valve and breathe normally. The electronic end of
service time indicator will continue briefly then stop.
g). If the environment is suitably quiet, leakage from the facepiece
can also be detected by listening for a flow of air while holding
your breath. Inhale and hold your breath momentarily. Do not
depress air saver/donning switch. Air should not be heard flowing
into the facepiece from the regulator and no flow of air shall be
detected outward from the facepiece.
h) If any air leakage is detected during any of the above tests, depress
the air saver/donning switch on the top of the regulator, remove
the facepiece and repeat the facepiece donning steps.
i) If a user seal check is unsatisfactory either per the user instructions
above or the OSHA fit testing process, the use of mask Seal Kit
P/N 805655-01 is required. The mask Seal Kit is provided with the
full facepiece. Refer to the INSTALLATION AND USE INSTRUC-
TIONS, SCOTT P/N 89462-01, included with the mask Seal Kit.
This is a NIOSH approved component to enhance the fit of the
facepiece. If leakage persists, do not use the respirator.
7. Put on any other required protective head gear or protective clothing.
Be sure that any head gear, helmet or protective clothing does not
interfere with the use of the respirator. The head must move freely
without dislodging the facepiece or disturbing the face to facepiece
seal.
See ANSI Standard Z88.2 entitled Practices for Respiratory Protection
for additional information. When the respirator is used in conjunction
with fire fighting, see NFPA Standard 1500, entitled Standard on Fire
Department Occupational Safety and Health Program for additional
information.
DO NOT ATTACH ANYTHING TO, OR CARRY ANYTHING ON, THE
AIR-PAK X3 SNAP-CHANGE SCBA SHOULDER STRAP BUCKLES AS
THIS COULD CAUSE THE SHOULDER STRAPS TO LOOSEN DURING
USE OF THE RESPIRATOR.

USING THE RESPIRATOR

1. Proceed with use of respirator in accordance with your respiratory
protection program.
a) PLAN EVERY ENTRY INTO A CONTAmINATED OR UNKNOWN
ATmOSPHERE TO ENSURE THAT THERE IS SUFFICIENT AIR
SUPPLY TO ENTER, PERFORm THE REQUIRED TASKS, AND
RETURN TO A SAFE BREATHING AREA.
P/N 595279-01 Rev. B 5/14
NOTE
Page 28 of 48
WARNING
FA I l U R E T O C H E C K T H E FA C E T O
FA C E P I E C E S E A l B E F O R E U S E M Ay
R E S U lT I N U S E O F T H E R E S P I R ATO R
WITH A POOR FACE TO FACEPIECE SEAl.
A POOR FACE TO FACEPIECE SEAl MAy
R E S U lT I N l O S S O F A I R W H I C H M Ay
CAUSE REDUCED DURATION OF USE AND/
O R E X P O S U R E O F T H E U S E R TO T H E
HAZARDOUS ATMOSPHERE WHICH COUlD
RESUlT IN SERIOUS INJURy OR DEATH.
WARNING
IF lEAKAGE OF AIR INTO THE FACEPIECE
IS DETECTED DURING CHECK OF THE
FACE TO FACEPIECE SEAl, DO NOT USE
THE RESPIRATOR. REMOVE FACEPIECE
AND REPEAT THE DONNING PROCEDURE.
IF FACEPIECE CANNOT BE ADJUSTED TO
SEAl TO FACE, A FACEPIECE FIT TEST
AND/OR A DIFFERENT SIZE FACEPIECE
MAy BE REQUIRED BEFORE USE OF THE
RESPIRATOR. USE OF AN IMPROPERly
FITTING FACEPIECE MAy CAUSE REDUCED
DURATION OF USE AND/OR EXPOSURE
O F T H E U S E R T O T H E H A Z A R D O U S
ATMOSPHERE WHICH COUlD RESUlT IN
SERIOUS INJURy OR DEATH.
WARNING
AlWAyS START WITH A FUll CylINDER.
PARTIAlly FIllED CylINDERS SHOUlD
ONly BE USED IN EMERGENCy CONDITIONS
IF FUll CylINDERS ARE NOT AVAIlABlE.
THE USER MUST DETERMINE THAT THE
CylINDER CONTAINS SUFFICIENT AIR TO
AllOW TIME FOR COMPlETION OF THE
TASKS INVOlVED AND RETURN TO A SAFE
ATMOSPHERE WITH AN ADEQUATE MARGIN
FOR SAFETy. ENTERING A HAZARDOUS
ATMOSPHERE WITH INSUFFICIENT AIR
OR AFTER THE END OF SERVICE TIME
INDICATOR HAS ACTUATED MAy RESUlT
IN SERIOUS INJURy OR DEATH.