Training Guide Course No. 196514
Level 2 Maintenance, X-1000 Series Dispensing Systems 2-131 P/N 196515 (Revision A)
Exercise Sheet 2-14-5
Checking the Function of Impingement Air Valve and Flowmeters
1. Locate the Impingement Air Valve and Flowmeters in the Front Cabinet of the
dispensing system.
2. Open the Impingement Air Valve by turning the handle counterclockwise such
that it is parallel with the airline. Listen for leaks.
 If there is an air leak, identify the source, shut off the air valve, and fix the
leak before proceeding.
3. While monitoring the readouts on the three Flowmeters, turn the Flowmeter
Adjustment Knobs counterclockwise until maximum airflow is achieved.
 The flow indicators should show an increase in airflow.
4. While monitoring the readouts on the three Flowmeters, turn the Flowmeter
Adjustment Knobs clockwise to lessen the flow.
 The flow indicators should show a decrease in airflow.
5. Restore maximum airflow and open the dispensing system Hatch. Verify air is
coming out of the holes in Impingement Heater at each Conveyor station.
 If air is not flowing out of the Heater, check the pneumatic connections.
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