King nutronics 3666-12-101 - 1.3.3 Function and Leak Tests

1.3.3 FUNCTION AND LEAK TESTS
Following overhaul, the King Nutronics Corporaon PN 3666-12-101 Control Valve Assembly must be tested for
proper funcon and leakage in accordance with the following procedure:
1. Congure the Model 3666 Automac Pressure Calibrator for standard gauge calibraon.
2. Install the dust plug into the Control Unit Quick Disconnect TEST port.
3. Program the following test points using psi units in the upscale and downscale direcons: 20; 200; 2,000;
5,000; and 10,000. Operate the unit through the programmed range.
4. Program a new test with a 20-psi test point. Press the [ADV] key to commence tesng.
5. Wait for the MANUAL SET message to be displayed. Aer this message appears, observe the ACTUAL pressure
in the display for stability.
a. If the displayed value connues to increase past the programmed setpoint, the “pressure side” of the
valve is leaking.
b. If the displayed value decreases, apply a bubble soluon to the VAC port to check for leakage. If leakage
is evident, the “vent side” of the valve is leaking.
1-4