REAR DIFFERENTIAL LOCK AIR PUMP CHECK
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1.Install the air hose to the differential. 2.Connect a pressure gauge to the air pump discharge outlet nozzle, via the air hose and T-joint. 3.Apply battery voltage to the air pump connector. |
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4.Measure the time when the pump starts and stops operating, and if it stops within 5 seconds,
the pressure switch inside the pump is normal. 5.Measure the pressure 10 - 20 seconds after the pump has stopped. Standard value : 24.5 - 39 kPa (-30 - 0°C), 24.5 - 34 kPa (0 - 100°C) 6.If the pressure is within the standard value, the release valve inside the pump is normal. 7.Check the pump does not begin operating for 5 minutes after it has stopped. 8. If the inspection for steps 4 - 7 is normal, the pump is fully operational. |