1.First we have to verify this is petrolpump or diesel pump
2.If it is petrol pump verify the petrol is thr or not
3.If petrol is thr not it must show the some signal
4.after check the meter it should be at zero level or not
5.then meter is correctly working or not
6.check the quantity and meter is zeri
7.check the reset button is working correctly or not
8.verify the amount display on the screen
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