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7. 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.
8. If air leakage is detected during either step 6 or step 7 above, depress
the air saver/donning switch on the top of the regulator, remove the
facepiece and repeat the facepiece donning steps above. 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 INSTRUCTIONS, 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.
USING THE RESPIRATOR
1. 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.
DO NOT ATTACH ANYTHING TO, OR CARRY ANYTHING ON, THE
AIR-PAK 75i SCBA SHOULDER STRAP BUCKLES AS THIS COULD
CAUSE THE SHOULDER STRAPS TO LOOSEN DURING USE OF THE
RESPIRATOR.
2. 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.
b) THE USER MUST PERIODICALLY CHECK THE REMOTE PRES-
SURE GAUGE ON THE SHOULDER STRAP TO MONITOR THE
RATE OF AIR CONSUMPTION AND THE REMAINING AIR SUP-
PLY.
c) THE USER MUST ALWAYS ALLOW SUFFICIENT AIR FOR
EGRESS FROM THE CONTAMINATED AREA.
d) IF RE-ENTRY IS ATTEMPTED AFTER THE AIR HAS BEEN PAR-
TIALLY CONSUMED (CYLINDER LESS THAN FULL), THE USER
MUST BE CERTAIN THAT THE REMAINING AIR WILL BE SUF-
FICIENT TO PERFORM THE REQUIRED TASKS AND RETURN
TO SAFETY.
3. I f t h e V I B R A L E R T e n d o f s e r v i c e i n d i c a t o r a l a r m a c t u a t e s ,
LEAVE THE AREA REQUIRING RESPIRATORY PROTECTION
IMMEDIATELY.
a) W he n you a re in a saf e ar ea w h e r e yo u a r e c e rt a i n t h a t
respiratory protection is not required, terminate the use of
the respirator, (see TERMINATION OF USE section of this
instruction).
b) Determine the cause of the alarm.
c) If the end of service time alarm is actuated by a depleted air
supply cylinder, replace the cylinder in accordance with the
CYLINDER REPLACEMENT PROCEDURE section of this instruc-
tion. Use of the respirator may be resumed with a fully charged
breathing air cylinder installed.
d) If the end of service indicator alarm has actuated for an unknown
reason, DO NOT RESUME USE OF THE RESPIRATOR. Remove
the respirator from service and tag it for repair by authorized
personnel.
NOTE
Page 25 of 44
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 RE-
PEAT THE DONNING PROCEDURE. IF FACE-
PIECE CANNOT BE ADJUSTED TO SEAL TO
FACE, A FACEPIECE FIT TEST AND/OR A
DIFFERENT SIZE FACEPIECE MAY BE RE-
QUIRED BEFORE USE OF THE RESPIRATOR.
USE OF AN IMPROPERLY FITTING FACE-
PIECE MAY CAUSE REDUCED DURATION OF
USE AND/OR EXPOSURE OF THE USER TO
THE HAZARDOUS ATMOSPHERE WHICH
COULD RESULT IN SERIOUS INJURY OR
DEATH.
WARNING
CERTAIN ENVIRONMENTS MAY REQUIRE
T H A T P R O T E C T I V E M A T E R I A L C O V E R
SOME OR ALL OF THE RESPIRATOR IN
ADDITION TO COVERING THE USER. THE
USER MUST BE ABLE TO ACCESS THE
CONTROLS OF THE RESPIRATOR AT ALL
TIMES. INABILITY TO ACCESS CONTROLS
OF THE RESPIRATOR MAY RESULT IN A
SITUATION WHICH COULD LEAD TO SERI-
OUS INJURY OR DEATH.
WARNING
THE RESPIRATOR USER MUST IMMEDIATELY
LEAVE THE AREA REQUIRING RESPIRATORY
PROTECTION WHEN THE END OF SERVICE
INDICATOR ALARM ACTUATES. ACTUA-
TION OF ANY END OF SERVICE INDICATOR
ALARM WARNS THE USER THAT APPROXI-
MATELY 25% OF FULL PRESSURE REMAINS
IN THE AIR SUPPLY CYLINDER (THAT IS,
APPROXIMATELY 3/4 OF THE TOTAL AIR
SUPPLY HAS BEEN USED) OR THAT THERE
IS A MALFUNCTION IN THE RESPIRATOR.
A DELAY IN LEAVING THE AREA AFTER
ALARM ACTUATION MAY RESULT IN SERI-
OUS INJURY OR DEATH.
USE OF RESPIRATOR
CONTINUED ON NEXT PAGE...
P/N 595236-01 Rev. B 10/11
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