Termination Of Use - Scott 2.2 Operating & Maintenance Instructions

USE OF RESPIRATOR CONTINUED...

TERMINATION OF USE

To remove the facepiece (doff the facepiece) and terminate respiratory
protection, proceed as follows:
1. Leave contaminated area or be certain that respiratory protection is
no longer required.
2. Loosen the temple straps slightly by lifting the upper facepiece buckles
away from the head. The facepiece buckles have "U-shaped" release
lever extensions.
3. Loosen the neck straps by lifting the lower facepiece buckles away
from the head while lifting the facepiece away from face.
4. Remove the facepiece by pulling it up and over the head.
5. To stop the flow of air from the facepiece, fully depress the air saver/
donning switch on top of the regulator and release.
THE AIR SAVER/DONNING SWITCH IS INTENDED TO PREVENT A FREE
FLOW OF AIR AND THE DEPLETION OF THE AIR SUPPLY WHEN THE
FACEPIECE IS REmOVED AND THE CYLINDER VALVE IS STILL OPEN.
THE PURGE VALVE AND VIBRALERT WILL FUNCTION NORmALLY
WITH THE AIR SAVER/DONNING SWITCH ACTIVATED. IF THE PURGE
VALVE IS OPEN OR IF THE VIBRALERT IS IN OPERATION, THE AIR
WILL CONTINUE TO BE DEPLETED FROm THE RESPIRATOR UNTIL
THE CYLINDER VALVE IS CLOSED.
6. Close the cylinder valve if you are not going to resume use of the
respirator.
LEAVING THE AIR SAVER/DONNING SWITCH ACTIVATED AND THE
CYLINDER VALVE OPEN FOR AN EXTENDED PERIOD OF TImE mAY
RESULT IN INTERmITTENT ACTIVATION OF THE VIBRALERT EVEN
WHEN mORE THAN 33% OF THE AIR SUPPLY REmAINS.
IF THE RESPIRATOR IS EQUIPPED WITH A PAK-ALERT DISTRESS
ALARm, SEE THE INSTRUCTIONS PROVIDED WITH THE DISTRESS
ALARm FOR DETAILS OF HOW TO TURN OFF THE UNIT.
7. Slightly loosen shoulder straps by lifting ends of shoulder strap slide
buckles up, release waist belt by pressing release button in center
of waist belt buckle, and remove the unit from your back.
8. Proceed in accordance with the requirements of your respiratory
protection program for service of the respirator, including the fol-
lowing:
a) Replace the cylinder with a fully charged cylinder of the correct
size and configuration (see the CYLINDER REPLACEmENT Sec-
tion of this instruction)
b) Clean the respirator according to the CLEANING AND STOR-
AGE section of this instruction. Inspect the respirator according
to the REGULAR OPERATIONAL INSPECTIONS section of this
instruction.
P/N 595279-01 Rev. B 5/14
NOTE
NOTE
NOTE
Page 30 of 48
CAUTION
FAIlURE TO RElEASE TENSION ON NECK
STRAPS BEFORE REMOVING FACEPIECE
M Ay C A U S E P R E M AT U R E W E A R O R
DAMAGE TO STRAPS AND/OR FACEPIECE
ASSEMBly.
WARNING
I F A I R F l O W F R O M T H E R E G U l AT O R
CANNOT BE STOPPED By DEPRESSING
THE AIR SAVER SWITCH, IMMEDIATEly
ClOSE THE CylINDER VAlVE TO PREVENT
DEPlETION OF THE AIR REMAINING IN THE
CylINDER. REMOVE THE RESPIRATOR
FROM SERVICE AND TAG FOR REPAIR By
AUTHORIZED PERSONNEl.
CAUTION
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.
CAUTION
AN IMPACT TO THE REGUlATOR WHIlE THE
CylINDER VAlVE IS OPEN AND THE AIR
SAVER SWITCH IS ACTIVATED MAy CAUSE
AIR TO FlOW FROM THE REGUlATOR
AND DEPlETE THE AIR REMAINING IN THE
CylINDER.
CAUTION
DO NOT lEAVE CylINDER VAlVE OPEN
WHEN RESPIRATOR IS NOT IN USE.
CAUTION
FA I l U R E T O R E l E A S E T E N S I O N O N
SHOUlDER STRAPS BEFORE REMOVING
RESPIRATOR MAy CAUSE PREMATURE
WEAR OR DAMAGE TO STRAPS AND/OR
RESPIRATOR ASSEMBly.
WARNING
DO NOT AllOW RESPIRATOR TO DROP
WHEN HANDlING. CARElESS HANDlING
OF THE RESPIRATOR MAy CAUSE DAMAGE
TO RESPIRATOR THAT MAy EFFECT THE
PERFORMANCE OF THE RESPIRATOR OR
MAy RElEASE HIGH PRESSURE BREATHING
AIR, EITHER OF WHICH MAy RESUlT IN
SERIOUS INJURy OR DEATH.