Replacement Of The Snap-Change Cylinder With An Assistant - Scott 2.2 Operating & Maintenance Instructions

SNAP-CHANGE CylINDER REPlACEMENT PROCEDURE
CONTINUED...
8. Secure the cylinder in place by pushing the latch toward the back-
frame to lock the cylinder latch and fully engage the cylinder latch
assembly.
ENSURE THAT THE CYLINDER IS SECURELY HELD IN PLACE ON THE
BACKFRAmE BY THE CYLINDER RETENTION ASSEmBLY. DO NOT USE
EXCESSIVE FORCE TO LOCK THE LATCH mECHANISm. IF THE RE-
TENTION STRAP IS TOO TIGHT OR TOO LOOSE, USE THE TRI-SLIDE
BUCKLE TO ADJUST THE RETENTION STRAP ENGAGEmENT LENGTH,
THEN RE-ATTEmPT TO ENGAGE THE LATCH ASSEmBLY.
9. The respirator is ready for continued use. See the PREPARATION
FOR USE section of this instruction and USE OF THE RESPIRA-
TOR section of this instruction. If respirator use is not continued, the
respirator must be cleaned and inspected. See the CLEANING AND
STORAGE section and the REGULAR OPERATIONAL INSPECTION
section of this instruction.
10. The removed cylinder shall be inspected and refilled by authorized
personnel. Special training is required to fill the cylinder and valve
assemblies used with this SCOTT SCBA. Contact your SCOTT repre-
sentative for additional information on refilling SCOTT SCBA cylinders.
REPLACEMENT OF THE SNAP-CHANGE CYLINDER
WITH AN ASSISTANT
A depleted SNAP-CHANGE cylinder may also be replaced with the as-
sistance of a second individual. Proceed as follows:
1. The assistant will stand behind the respirator user and disengage
the cylinder retention strap by gripping the latch plate as shown in
FIGURE 23 and lifting on the end of the latch.
ASSISTANT REMOVING
CylINDER AND VAlVE
ASSEMBly
2. The assistant will pull both SNAP-CHANGE locks horizontally away
from the pressure reducer to release the cylinder connector while
supporting the cylinder to prevent it from falling. See FIGURE 28.
3. The assistant will lift the cylinder free from the backframe and remove.
4. The assistant must inspect the High Pressure Seal in the high pres-
sure inlet. If high pressure seal is damaged or missing, remove the
respirator from service and tag for repair by authorized personnel.
See FIGURE 21.
P/N 595279-01 Rev. B 5/14
NOTE
FIGURE 23
Page 40 of 48
WARNING
BREATHING AIR CylINDERS ARE TO BE
I N S P E C T E D A N D R E F I l l E D O N ly B E
TRAINED AND AUTHORIZED PERSONNEl.
IMPROPER FIllING OF BREATHING AIR
CylINDERS MAy CAUSE SERIOUS INJURy
OR DEATH.
WARNING
USE OF A RESPIRATOR WITH A MISSING
O R D A M A G E D H I G H P R E S S U R E S E A l
M Ay R E S U lT I N A I R l E A K A G E W H I C H
M Ay R E D U C E T H E D U R AT I O N O F U S E
A N D / O R T H E T I M E R E M A I N I N G A F T E R
AN END OF SERVICE AlARM ACTUATES
OR MAy PREVENT THE END OF SERVICE
AlARM FROM ACTUATING. THE USE OF A
RESPIRATOR WITH SUCH AN AIR lEAK MAy
RESUlT IN EXPOSING THE USER OF THE
RESPIRATOR TO THE ATMOSPHERE THE
RESPIRATOR IS INTENDED TO PROTECT
AGAINST AND MAy lEAD TO SERIOUS
INJURy OR DEATH.
WARNING
VERIFy THAT THE CylINDER CONNECTOR
IS ClEAN AND FREE OF DIRT OR DEBRIS
BEFORE ENGAGING THE SNAP-CHANGE
TO THE PRESSURE REDUCER. DIRT IN
THE CONNECTOR CAN CONTAMINATE THE
BREATHING AIR PATH AND CAN CAUSE THE
RESPIRATOR TO MAlFUNCTION RESUlTING
IN lOSS OF AIR SUPPly AND SERIOUS
INJURy OR DEATH.