S 165-082-N00

 (10)
 Make sure you clean the clay from the target and the proximity sensor.

 G.  
Adjust the Actuator Deploy Proximity Sensor (Feeler Gage Procedure) (Fig. 501).

 S 865-052-N00
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 865-053-N00

 (2)  
Supply hydraulic power (AMM 29-11-00/201).

 S 445-054-N00

 (3)  
Do the activation procedure for the thrust reverser
 (AMM 78-31-00/201).

 S 865-055-N00

 (4)  
Extend and retract the thrust reverser three times with hydraulic power (AMM 78-31-00/201).

 (5)  
Extend the thrust reverser with hydraulic power (AMM 78-31-00/201).

 S 865-085-N00
 NOTE: Do not retract the thrust reverser this time.
____
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 225-061-N00
 (6)  Put a feeler gage between the face of the actuator deploy proximity sensor and the target to measure the clearance.
 NOTE: The clearance between the face of the proximity sensor and
____ the surface of the target must be 0.030 to 0.060 inch with hydraulic pressure supplied.
 S 045-056-N00
 WARNING: DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF THE
_______ THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (7)  
Do the deactivation procedure for the thrust reverser for ground maintenance (AMM 78-31-00/201).

 S 825-058-N00

 (8)  
Install or remove the shims below the target to get the correct target clearance.

 S 865-059-N00

 (9)  
Manually retract the thrust reverser (AMM 78-31-00/201).

 H.
Adjust the Auto Restow Proximity Sensor (Fig. 502).

 S 985-062-N00
 (1)  
Manually extend the thrust reverser (AMM 78-31-00/201).

 S 825-063-N00

 (2)  
Make a piece of soft clay in the shape of a cone and put it on the face of the proximity sensor.

 S 865-064-N00

 (3)  
Supply electrical power (AMM 24-22-00/201).

 S 865-065-N00

 (4)  
Supply hydraulic power (AMM 29-11-00/201).

 S 445-066-N00

 (5)  
Do the activation procedure for the thrust reverser
 (AMM 78-31-00/201).

 S 865-067-N00

 (6)  
Retract the thrust reverser with hydraulic power to compress the clay between the target and the proximity sensor (AMM 78-31-00/201).

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
THRUST REVERSER TORQUE BOX
BUMPER STOP
LEFT AUTO RESTOW PROXIMITY SENSOR
SEE B
CENTER LOCKING HYDRAULIC ACTUATOR
SEE A
SENSOR
FWD
MOUNTING BRACKET
0.12
INCH0.08
AUTO RESTOW PROXIMITY SENSOR 1 (THRUST REVERSER SLEEVE IN THE DEPLOY POSITION)
A
THRUST REVERSER SLEEVE BRACKET
TARGET
BUMPER STOP 
CENTER 
AUTO RESTOW PROXIMITY  BOLT WASHER NUT  SLEEVE  BUMPER SHIMS (3 LOCATIONS)  HYDRAULIC ACTUATOR LOCKING 
SENSOR  (2 LOCATIONS) 
WASHER  1 

FWD
B
1
INSTALL THE WASHERS TO SET A CLEARANCE
OF 0.08-0.12 INCH BETWEEN THE FACE OF

THE PROXIMITY SENSOR AND THE TARGET.  C
Auto Restow Proximity Sensor Adjustment
Figure 502

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