Step Solenoid Valve

[jwasnewski]

Does anyone have a schematic of the internal workings of the step
Solenoid valve. Also, it has two pins or needles which appear to be
adjustable. I have a small air leak at one of those pins. The solenoid
clicks with 120 psi air and the step does not move. Every switch makes
the solenoid click. Open the door and it clicks. The safety strip
makes the valve click. I'm wondering if the thing is stuck somehow. I
can see the valve on the drawings but nothing more. Thanks for any
info.

Leroy Eckert
1990 WB-40"Smoke N Mirrors"
Niceville, FL