Scott RIT-PAK III Operating And Maintenance Instructions Manual page 17

OPERATIONAL TESTING WITH
BREATHING REGULATOR AND FACEPIECE
If the RIT-PAK III Portable Air Supply is to be used with the optional breathing regulator
and Emergency facepiece, include the following additional steps to the OPERATIONAL
INSPECTION:
1. Attach the quick disconnect on the breathing regulator to the female side
of the dual connector on the LOW pressure air supply hose. Verify a good
connection by pulling on the connector.
2. If the regulator is not attached to the facepiece, proceed as follows:
a) Align the two flats of the regulator outlet port with the corresponding 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.
3. Check that the breathing regulator purge valve (red knob on regulator) is
closed (full clockwise and pointer on knob upward).
4. Fully depress the center of the air saver/donning switch on the top of the
regulator and release.
5. With the cylinder valve fully open (approximately 2 1/2 turns), don the face-
piece or hold the facepiece to the face to affect a good seal. Inhale sharply
to automatically start the flow of air. Breathe normally from the facepiece to
ensure proper operation.
6. Remove facepiece from face. Air shall freely flow from the facepiece.
7. Fully depress the air saver/donning switch on the top of regulator and release.
The flow of air from the facepiece shall stop. There shall be no leakage of
air from any part of the portable air supply.
8. The red purge knob allows air to flow into the facepiece in an emergency
without breathing on the respirator. The purge control is also used to release
residual air from the respirator after the cylinder valve is turned off. Check
the purge valve as follows:
a) Rotate purge valve 1/2 turn counterclockwise (pointer on knob downward).
Air shall freely flow from the regulator.
b) Rotate purge valve 1/2 turn clockwise to full closed position (pointer on
knob upward). Air flow from regulator shall stop.
9. Push in and rotate the cylinder valve knob clockwise to close. When the
cylinder valve is fully closed, open the purge valve slightly to vent residual
air pressure from system. The LED DISPLAY shall cease operation when the
system pressure drops to zero.
10. When air flow stops completely, return purge valve to the fully closed position
(pointer on knob upward).
IF ANY DISCREPANCY OR MALFUNCTION IS NOTED DURING THE INSPECTION,
DO NOT USE THE EQUIPMENT. REMOVE THE EQUIPMENT FROM SERVICE AND
TAG IT FOR REPAIR BY AUTHORIZED PERSONNEL.
AFTER INSPECTION AND TESTING, REFER TO THE PREPARATION FOR USE SEC-
TION OF THIS INSTRUCTION AND CAREFULLY FOLLOW THE INSTRUCTIONS FOR
STORAGE OF EACH OF THE AIR SUPPLY LINES TO ASSURE THAT THEY CAN BE
PROPERLY DEPLOYED WHEN THEY ARE NEEDED.
Proceed to the PREPARATION FOR USE section of this instruction.
NOTE
Page 17 of 36
CAUTION
DO NOT USE TOOLS TO OPEN OR CLOSE
THE PURGE VALVE. OPEN OR CLOSE
BY USING FINGER-PRESSURE ONLY.
ROTATION OR THE PURGE VALVE IS
LIMITED TO 1/2 TURN. USE OF TOOLS
TO OPEN OR CLOSE PURGE VALVE MAY
RESULT IN DAMAGE TO THE PURGE
VALVE.
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.
WARNING
IF THE LED DISPLAY INDICATOR LIGHTS
DO NOT ACTUATE AS DESCRIBED
IN THIS INSTRUCTION, DO NOT USE
THE EQUIPMENT UNLESS THERE IS
A COMPELLING REASON TO DO SO.
REMOVE THE AIR SUPPLY FROM SERVICE
AND TAG IT FOR REPAIR BY AUTHORIZED
PERSONNEL. USE OF AN IMPROPERLY
OPERATING AIR SUPPLY MAY RESULT IN
SERIOUS INJURY OR DEATH.
P/N 595225-01 Rev C 4/12