Kirby Morgan 37 User Manual

Page 37

104

Kirby Morgan 37 & 57

7.12.3 SuperFlow 450 Demand Regulator

Bias Adjustment Field Service with

Demand Regulator on Helmet

It is not necessary to remove the regulator from the

helmet to perform field maintenance.

Tools Required:

1/4 inch Flat Blade Screwdriver on Torque Wrench

1” Open End Attachment on Torque Wrench

1/4” to 5/16” dowel rod sharpened by pencil sharp-

ener.

Remove the screws and washers on either side of

the cover.

Unscrew the cover retaining ring and remove the

cover.

Remove the diaphragm and inspect it carefully. If it

is torn or punctured it must be replaced.

1) Remove the bent tube assembly from the helmet,

per this chapter.

2) Remove the screws and washers on either side of

the regulator cover.

2) Unscrew the cover retaining ring.

3) Remove the cover and diaphragm. Inspect the

diaphragm for holes or tears. If it torn or punctured it

must be replaced. Inspect the interior of the regulator

for foreign matter and remove if necessary.

4) Carefully insert the tip of a flat blade screwdriver

in the slot at the top of the lock clip to loosen it and

slide the clip away from the regulator main tube.

The lock clip must be removed to service the

internal o-rings in the regulator.