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TASK 32-61-02-402-009
3. Install the Proximity Sensors for the Main Landing Gear
_______________________________________________________
A. Equipment
(1)
Pin Insertion/Extraction Tool - MIL-C-83723
B.
Parts
~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 201 | 1 | Sensor-Proximity Switch | 32-61-02 | 02 | 45 | | | 2 | Washer | 32-61-02 | 02 | 35 | | | 3 | Nut | 32-61-02 | 02 | 30 | | 202 | 1 | Sensor | 32-61-02 | 05 | 35 | | | 2 | Washer | 32-61-02 | 05 | 55 | | | 3 | Nut | 32-61-02 | 05 | 47 | | 203 | 1 | Sensor | 32-61-02 | 01 | 30 | | | 2 | Shims | 32-61-02 | 01 | 45 | | | 3 | Screws | 32-61-02 | 01 | 35 | | | 4 | Nut | 32-01-02 | 01 | 40 | 2.......….......…...................................…...........….....…........1
C. Access
(1)
Location Zones
143 MLG Wheel Well (Left)
144 MLG Wheel Well (Right)
731 Main Landing Gear (MLG) (Left)
741 Main Landing Gear (MLG) (Right)
D.
Procedure
S 422-031
CAUTION:_______DO NOT DROP OR HIT THE SENSORS. YOU CAN CAUSE DAMAGE TO THE INTERNAL COMPONENTS OF THE SENSORS AND CAUSE A FAILURE OF THE POSITION INDICATION SYSTEM FOR THE LANDING GEAR.
(1)
Do the steps that follow to install the landing gear down and locked sensors (Fig. 201):
(a)
If you will install a new sensor, attach a line to the sensor wires.
(b)
Put the wires through the conduit until the sensor is almost into the conduit.
(c)
Pull the sensor wire through the conduit to the point of the connection on the rear spar.
(d)
Cut the wire, but keep sufficient wire to install the pins on the sensor wires.
(e)
Remove the insulation from the wire and install the correct pins onto the wire.
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(f)
Install the pins into the connector.
(g)
Install the connector plug on the conduit.
(h)
Install the connector into the receptacle on the rear spar.
(i)
Do the test of the sensor with the actuator test tool.
NOTE: Refer to the task which does a test of the sensors.
____
1) Make sure the sensor is more than one inch away from all metal surfaces.
(j)
Put the washers that were there before on the sensor and install it in the bracket.
(k)
Install the locknut on the target side of the sensor.
(l)
Tighten the locknut.
(m)
Install the lockwire.
(n)
Connect the conduit coupling nut to the sensor.
(o)
Tighten the nut.
(p)
Install the lockwire on the locknut.
S 422-038
CAUTION:_______DO NOT DROP OR HIT THE SENSORS. YOU CAN CAUSE DAMAGE TO THE INTERNAL COMPONENTS OF THE SENSORS AND CAUSE A FAILURE OF THE POSITION INDICATION SYSTEM FOR THE LANDING GEAR.
(2)
Do the steps that follow to install the landing gear up and locked sensors (Fig. 202):
(a)
Install the key washers on the sensor and bracket the same as they were when the sensor was removed.
(b)
Make sure the key of the washer is put in the hole in the bracket.
(c)
Install the locknut on the sensor.
(d)
Remove the insulation from the wire to the length that is necessary.
(e)
Make a splice of the sensor wires and keep the color code for the wires the same as it was before.
(f)
Do the test of the sensor with the actuator test tool.
NOTE: Refer to the task which does a test of the sensors.
____
(g) Tighten the locknut and install lockwire.
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S 422-039
CAUTION:_______DO NOT DROP OR HIT THE SENSORS. YOU CAN CAUSE DAMAGE TO THE INTERNAL COMPONENTS OF THE SENSORS AND CAUSE A FAILURE OF THE POSITION INDICATION SYSTEM FOR THE LANDING GEAR.
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