757 MAINTENANCE MANUAL
 MAIN GEAR TRUCK TILT SENSORS - MAINTENANCE PRACTICES
____________________________________________________
 1.  General_______
 A. This procedure contains three tasks.
 (1)  
The first task removes the truck tilt sensors for the main landing gear.

 (2)  
The second task installs the truck tilt sensors on the main landing gear.

 (3)  
The third task does a test for the truck tilt sensors on the main landing gear.

 TASK 32-09-07-002-001
 2.  Remove the Truck Tilt Sensors for the Main Landing Gear_______________________________________________________
 A. Equipment
 (1)  
Pin Insertion/Extraction Tool
 Part on Crimp Tool Kit - DMC 567
 Daniels Manufacturing Corp.
 526 Thorpe Road
 Orlando, Forida 32824

 B.
References

 (1)  
AMM 24-22-00/201, Electrical Power - Control

 (2)  
AMM 32-00-20/201, Landing Gear Downlocks

 (3)  
AMM 32-09-02/201, Prepare the Safety-Sensitive Systems for Air Mode Simulation

 C.
Access

 (1)  
Location Zones
 731/741 Main Landing Gear

 D.
Prepare to Remove the Truck Tilt Sensor

 S 492-002
 (1)  
Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).

 (2)  
Make sure the chocks are below the wheels.

 S 492-003
 

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757 MAINTENANCE MANUAL
 S 862-068
 WARNING: MAKE SURE YOU DO THE STEPS TO PREPARE THE SYSTEMS FOR AIR MODE
_______ CORRECTLY. IF YOU DO NOT FOLLOW THESE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (3)  
Do the task to prepare the safety-sensitive systems for air mode simulation (AMM 32-09-02/201).

 S 212-037

 (4)  
Look at the sensor, its mounting bracket and the target for signs of damage or corrosion between the sensor and the shim.

 NOTE: Check the shims for signs of corrosion and repair as
____ necessary. Refer to Service Letter 757-SL-32-057 for more data.
 (a)  
Make a record if damage is found. This data will be used during the installation.

 E.
Remove the Truck Tilt Sensor (Fig. 201)

 S 032-005
 (1)  Remove the bolts which hold the covers to the J-1 or the J-2 junction box.
 NOTE: The junction box is on the truck beam of the main landing
____
 gear.

 S 862-006
 CAUTION: WRITE DOWN THE COLOR CODE AND THE PIN LOCATION OF THE SENSOR
_______ WIRES BEFORE YOU DISCONNECT THE WIRES. THIS WILL MAKE THE INSTALLATION OF THE WIRES EASIER AND WILL PREVENT THE MALFUNCTION OF THE AIR/GROUND RELAY SYSTEM.
 (2)  
Put a tag with the color code and the pin locations on the sensor wires.

 S 032-007

 (3)  
Use a pin extraction tool, to remove the sensor wire from the terminal block in the junction box.

 (4)
Put a line on the sensor wires to make the installation easier.

 (5)  
Disconnect the conduit coupling nut from the sensor (1).

 S 862-008
 S 032-009
 

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757
MAINTENANCE MANUAL

TRUCK BEAM (REF)
4. NUT
3. SHIM
1. SENSOR BRACKET FOR THE MOUNTING
TARGET (REF) SENSOR (REF)
　
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