Scott AIR-PAK 75 Operating & Maintenance Instructions page 15

PULL-BACK SLEEVE QUICK DISCONNECT
WITH HEADS-UP DISPLAY CONNECTION
5. If the regulator is not attached to the facepiece, proceed as follows:
a) Align the two flats of the regulator outlet port with the corre-
sponding flats in the facepiece port (the red purge valve on the
regulator will be in the 12 o'clock position). Insert the regulator
into the facepiece port.
b) Rotate the regulator counterclockwise (as viewed from inside
of facepiece) until the red purge valve knob is on the left side
of the facepiece. The lock tab on the regulator will lock into the
facepiece retainer with a "click." When the lock tab is properly
engaged, the regulator will not rotate.
6. Verify that a FuLL cylinder is properly installed in the backframe and
that the reducer hose coupling is hand tightened to the cylinder valve
outlet.
If no damage is found, proceed to the OPERATIONAL TESTING.
FIGURE 6
Page 15 of 48
WARNING
FAILURE TO CHECK ENGAGEMENT OF THE
REGULATOR LOCK TAB TO THE FACEPIECE
AS DESCRIBED MAY RESULT IN ROTATION
OF THE REGULATOR. IF THE REGULATOR
ROTATES AND FALLS OUT, THE LOSS OF
BREATHING AIR MAY RESULT IN SERIOUS
INJURY OR DEATH.
CAUTION
W R E N C H E S S H A L L N O T B E U S E D TO
TIGHTEN THE HOSE COUPLING. OVER
TIGHTENING THE HOSE COUPLING MAY
DAMAGE THE GASKET SEAL.
REGULAR OPERATIONAL INSPECTION
CONTINUED ON NExT PAGE...
P/N 595252-01 Rev. B 5/14