12. Assembly of Valve Housing
Remove and replace the rubber seat in the poppet with a new one. Grasp the new rubber seat and push it com-
pletely into the poppet. The rubber seat should be completely flat and flush with the end of the poppet. DO NOT
USE ANY LUBRICANT ON THE RUBBER SEAT. Place the spring over the poppet and insert it into housing. If it was
removed, replace the plastic insert into the top of the housing. Screw the orifice sleeve into the housing (flat side
first) with the 1/4" Allen wrench. Screw it completely into the housing (don't force it) to compress the spring and
allow you to install the lever, plastic washer and new locknut over the threads of the poppet. Initially tighten the
locknut until it the threads of the poppet just show through.
Note: The lever is installed so it leans away from the oval shaped aperture of the housing.
13. Assembly of Valve Body
Replace and lubricate the orifice o-ring. Insert it into the orifice sleeve and make sure it is screwed completely into
the housing. Screw the inlet nipple onto the housing completely and snug with a 2 wrenches. Don't over tighten or
you may damage the parts.
14. Assembly of Valve Body in Case
Replace and lubricate the 2 inlet o-rings. Align the flats on the housing with the flats inside the plastic case and
push it into place. Push it completely into the case until the nipple protrudes from the case the retaining c-clip can be
pushed into its' groove.
15. Regulator Adjustment
Check the intermediate pressure of the first stage. It should be in the range of 120-145 psi, and maintain steady
pressure. If it does not, service the first stage.
The SS1 is an unbalanced regulator design and its final adjustment will be sensitive to intermediate pressure
variations. The adjustment is similar to any unbalanced second stage. Once adjusted, decreasing intermediate
pressure will cause the regulator to breathe hard, and increasing it will cause it to breathe easily and perhaps
become overly sensitive. For optimal performance, adjust the SS1 using the first stage it will be used with. If this is
not possible, adjust it to the high end of the intermediate pressure range, 140-145 psi to prevent it from being
overly sensitive.
The initial adjustment of the orifice is fully retracted. Insert a 3/16" hex wrench into the nipple and unscrew it
(counterclockwise) until it stops.
Remove the wrench and install the quick disconnect. Slowly pressurize the regulator. Check that the lever is loose
and has plenty of free play.
If the regulator leaks, remove the quick disconnect, insert the hex wrench and tighten the orifice (turn clockwise) in
1/4 increments and retest until it stops leaking.
Adjust the lever locknut so there is about 1/16" free play before it opens the valve. Install the diaphragm and hold
in place while testing the cracking effort with a magnehelic gauge. The gauge should read between 1.25 and 1.5"
with a light breath. Readjust the orifice and lever until this reading is obtained. Each time the orifice is adjusted the
lever height will change and need to be readjusted.
16. Reassembly of Diaphragm
Hold the diaphragm to the light and check for tears or holes. Replace is needed. Replace the diaphragm into the
plastic case. Make sure the lip of he diaphragm is seated into the groove and that it is straight. Place the inner ring
into the back of the front cover. Place the front cover with ring into the case on top of the diaphragm. Make sure the
logo is upright. Align the cover retainer around the cover and press it into place one corner at a time until all 4
locking tabs lock into place in the case.
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ATOMIC AQUATICS FIRST AND SECOND STAGE REGULATORS MAINTENANCE PROCEDURES · 9/2003
