SECOND STAGE REGULATOR STATIC PRESSURE TEST
SECOND STAGE REGULATOR STATIC PRESSURE
TEST
Adjusting the Static Pressure Setting
1. Remove the shut-off cap, the shut-off push button,
the shut-off spring (P/N 492238), and the stop spring
from the regulator housing. (see Removing the Shut-
off Cap, Spring, and Stop Spring)
2. Using the small spanner wrench, unthread the thrust
ring from the shut-off hub.
Note:
Be sure that the adjusting screw remains in the
shut-off hub.
3. Attach the regulator to the tester suitable for the MMR
Airline Apparatus (PosiChek3 Tester).
Note:
MSA recommends using the biosystems PosiChek3
Computerized Performance Tester to conduct flow tests.
4. Connect and test the Premaire CADET15M by follow-
ing the user's instructions for Airline apparatus sup-
plied with the PosiChek3 tester.
5. Attach the Airline Adaptor and pressurize the system.
6. Adjust the static pressure by turning the adjusting
screw with the small spanner wrench. The static pres-
sure should be 1.1 to 1.3 inches water column.
7. Using a toothpick,
place one drop of RTV
Adhesive in the joint
between the adjusting
screw and shut-off hub.
8. Clean any excess RTV Adhesive from the threads of
the thrust ring.
9. Place one drop of RTV Adhesive on the threads of the
shut-off hub above the adjusting screw.
10. Thread the thrust ring into the shut-off hub until it is
flush with the top surface of the base or until it con-
tacts the adhesive screw. Do not over-tighten.
11. Using a toothpick, place a small bead of RTV
Adhesive (P/N 603556) in the groove at the bottom of
the shut-off hub.
12. Place the stop spring (P/N 800685) over the shut-off
hub. Push down on the spring until the bottom coil
snaps into place.
13. Replace the shut-off button and the spring in the shut-
off cap.
14. Thread the shut-off cap on the regulator housing until
the shut-off cap touches the shut-off hub.
15. Further tighten the cap clockwise until the next index-
ing mark lines up with the setscrew hole in the regula-
tor housing.
Note:
The cap slot locations are the six marks above the
threads on the cap.
16. Carefully thread the setscrew in until the top of the
setscrew is snug in the regulator housing.
17. Re-check the static pressure setting. The final setting
must be 1.2 to 1.4 inches water column.
18. Flow test to check the final assembly.
Note:
When flow testing Premaire CADET 15M System,
refer to the test procedures in the instructions for Airline
supplied with the tester to be used.
7
TAL 4011 (L) Rev. 3 - 817081
