PRECAUTIONS:

A) Keep in mind at all times that you are working with a pressurized system.

B) Due to excessive noise you may wish to wear ear protection.

C) Make sure the tracker air isolation valve is open. This valve should always be left open.

General Description:

Start the Quincy air Compressor in the Krabbenhut. This compressor feeds to the structure lift system.
See Appendix A: HET Air System Operations for a detailed explanation of the air system.

Initial Conditions

A) Quincy Compressor has been shut down.

B) Red ‘Stop’ button on the Quincy Compressor control panel is pushed in.

C) Valve to the Air Dryer is closed.

1.1 Check the items listed in the Initial Conditions section above to make sure the system is in the proper state.

1.2 Check the levels on the three snap traps hanging by the Dual-Tower Desiccant Air Dryers. They should not be more then half full.

1.3 Check the oil level of the compressor. It should be full.

1.4 Perform a quick visual check of the tracker oil-less compressor.

2.1 Test the compressor fault lights on the control panel diagram by pushing in the white button. All five lights should illuminate.

2.2 Gently rotate the red stop button clockwise until it pops out.

2.3 Push the green button to start the compressor. In cold weather the filter light may be on during startup but it should go out approximately one minute after the compressor has started.

2.4 Verify the compressor discharge pressure and discharge air temperature increase.

2.5 While the compressor is running, check for oil flow in the horizontal sight glass on the top of the tank. There should be a small amount of flow in the sight glass.

3.1 Once the discharge pressure has risen to approximately 100 psi or 750 kpa, go to the air dryer and slowly open the large dryer outlet valve until it is completely open.

3.2 Start the dryer by pressing the black button on the box below. In about eight seconds one of the towers will blow down.

3.3 Verify that there is no indication of moisture in the particulate filter sight glass near the isolation valve.

Fault Conditions and Solutions

A) Quincy air compressor will start but not continue to run after the start button is released. There are two causes.

1) The system is already pressurized. Repeat steps 3.1 – 3.2 above. The compressor should start.

2) The pressure sensor has become clogged. Call a member of the day staff to check and/or clean the pressure sensor.

B) Quincy air compressor will not start at all.

1) The phase protection has tripped so that the compressor will not run. This is mainly a cold weather problem. To fix turn of the large breaker marked “Quincy Air System” at the left side of the entrance door, then turn the breaker on again. This resets the controller electronics.

2) If the unit continues to trip out, use the portable air compressor located outside (during the winter months). Otherwise call the appropriate day staff.

Method for System Shutdown

A) In the Krabbenhut go to the air dryer and slowly pull the yellow valve handle down so that it is in a horizontal position. On the control box, directly below the valve, push the red button. These actions initiate a shutdown sequence that will turn the compressor off. After about 15 minutes, the compressor will shutdown. Push in the big red button on the compressor main control panel, located below the start button. This concludes the shutdown procedure.