(c)
Remove the jumpers from the sensor connector.
(d)
Install the connector.
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H. Do a test of the Proximity Sensor
S 845-010
(1)
Prepare to do the test.
(a)
Disconnect the applicable electrical connector for the sensor being tested.
NOTE: To find the applicable connector, you can use the WDM to
____ find the connector nearest the sensor being tested. It can be at the wheel well wall, strut bracket, or other location where it is easy to get access.
(b)
Install jumpers between the sensor leads and the INTERFACE terminals on the tester.
(c)
Set the component SELECTOR switch to SENSOR.
(d)
Set the test group SELECTOR switch to the correct group.
NOTE: Use the Proximity Sensing Component Categories table to
____ find the correct group number.
S 725-011
(2)
Do the test.
(a)
On the tester, set the POWER switch ON.
NOTE: If the SENSOR MONITOR TARGET FAULT light on the tester
____ comes on, a short or open circuit exists in the sensor or airplane wire.
(b)
Select the correct calibrated target from the Proximity Sensing Component Categories table.
(c)
Do one of these steps if the calibrated targets will not go between the sensor and its target (this is for a sensor and target that are in the target near configuration): 1) Put the sensor and its target in the target far
configuration.
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2) Remove the sensor from its mounting bracket.
(d) Hold the side of the calibrated target labeled TARGET NEAR against the sensor face.
NOTE: The calibrated target must fully cover the sensor face.
____
1) Make sure the TARGET NEAR light on the tester comes on.
(e) Hold the side of the calibrated target labeled TARGET FAR against the sensor face.
NOTE: The calibrated target must fully cover the sensor face.
____
1) Make sure the TARGET FAR light on the tester comes on.
S 845-012
(3) Put the airplane in its usual condition if you are done with the tests.
NOTE: You can continue with more tests if it is necessary.
____
(a)
On the tester, set the POWER switch to OFF.
(b)
Remove the jumpers from the sensor connector.
(c)
Install the connector for the sensor.
I.
Do a test of the Proximity Card
S 845-013
(1)
Prepare to do the test.
(a)
Remove the applicable circuit card from the landing gear logic shelf (Ref 32-09-20/401).
(b)
Install the circuit card in the test adapter cable, J9.
(c)
Connect the adapter cable to INTERFACE port, J1.
(d)
Set the component SELECTOR switch to CARD.
(e)
Set the test group SELECTOR switch to the correct group.
NOTE: Use the Proximity Sensing Component Categories table to
____ find the correct group number.
S 725-014
(2)
Do the test.
(a)
Set the CARD TEST proximity switch to NEAR.
1) Make sure the NEAR light comes on.
(b)
Set the CARD TEST proximity switch to FAR.
1) Make sure the FAR light comes on.
(c)
Set the CARD TEST fault switch to FAULT.
1) Make sure the FAULT light comes on.
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