Kirby Kirby Morgan 37 Adjusting the SuperFlow, Remove the bent tube and the bent tube adapter

Kirby Morgan 37 & 57

7.12.2 Adjusting the SuperFlow 450

Tools required:

Flat blade screwdriver

11/16 inch Open-end Attachment on Torque Wrench

7/8 inch Open-end Attachment on Torque Wrench 7/8 inch Open-end Wrench

1 inch Open End Wrench

1/4” to 5/16” Dowel Rod sharpened by pencil sharp- ener

4)If the regulator did not free flow when the regulator cover was pushed in, turn the adjustment nipple OUT 1/16 of a turn. Only small adjustments are needed to tune the regulator. Reconnect the low pressure hose, pressurize it and test again.

5)If the regulator began to free flow too easily, turn the adjustment nipple IN 1/16 of a turn. Only small adjustments are needed to tune the regulator. Reconnect the low pressure hose, pressurize it and test again.

Remove the bent tube and the bent tube adapter.

1)Remove the bent tube assembly from the helmet, per this chapter.

2)Remove the bent tube adapter.

3)Insert a flat head screwdriver into slot in the end of the adjustment nipple.

Turn the adjustment nipple 1/16 of a turn at a time to adjust the performance of the regulator.

Before you reinstall the bent tube, connect the low pressure hose to the regulator and pressurize it again. Push in on the regulator cover 1/4 inch. The regulator should just begin to free flow if it is properly adjusted.

6)If you are unable to obtain a proper adjustment with the regulator following this procedure, you will need to disassemble the regulator to check the condi- tion of the lever.

7)Once the regulator is properly adjusted, reinstall the bent tube adapter and o-ring. Tighten the adapter to 30 inch pounds.

8)Reinstall the bent tube assembly as per Section this chapter.

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