(g)  
Install the pin and cotter pin to attach the link on the solenoid to the stop lever crank.

 (h)  
Install the booster spring: 1) Install the top end of the booster spring in the stop lever.

 2)  Put the spacer in the bottom end of the spring and install the screw.

 (i)  
Connect the electrical wires to the solenoid.

 (j)  
Adjust the position of the solenoid on the mounting bracket: 1) Hold the solenoid plunger in the fully engaged position. 2) Adjust the solenoid on the mounting bracket until the stop

 on the stop lever touches the spacer. 3) Tighten the bolts on the solenoid.
 S 864-019
 (2)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  
P7, Overhead Circuit Breaker Panel
 1) 7G7, SPEED BRAKE FLT DETENT

 F.  
Control Lever Lock Test

 S 864-008
 (1)  Do this task: "Supply Electrical Power" (AMM 24-22-00/201).
 S 864-012
 WARNING: YOU MUST CAREFULLY FOLLOW THE STEPS IN THE REFERENCED TASK TO
_______ PREPARE THE SAFETY SENSITIVE SYSTEMS FOR THE AIR MODE. FAILURE TO FOLLOW THE STEPS CORRECTLY CAN CAUSE THE AUTOMATIC OPERATION OF THE AIRPLANE SYSTEMS. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (2)  
Do this task: "Prepare Safety-Sensitive Systems for Air Mode Simulation" (AMM 32-09-02/201).

 S 864-017

 (3)  
Make sure these circuit breakers are closed:

 (a)  
P7, Overhead Circuit Breaker Panel
 1) 7F22, LANDING GEAR DSP & CONT PRI
 2) 7F23, LANDING GEAR DSP & CONT ALTN

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A
747-400 MAINTENANCE MANUAL
 (b)  P180, DC Power Distribution Panel 1) 180J12, GND PWR SENSE
 (4)  S 864-021Do this task to operate the landing gear switches S613 and S614: "Put Air/Ground Relay System in the Air Mode" (AMM 32-09-02/201).
 (5)  S 714-015Make sure that the solenoid engages.
 (6)  S 864-016Do this task to remove the signals from the landing gear switches S613 and S614: "Put the Air/Ground Relay System Back in the Ground Mode" (AMM 32-09-02/201).
 (7)  S 714-014Make sure that the solenoid is not engaged.
 (8)  S 864-013Do this task: "Put Safety-Sensitive Systems Back to the Condition Before Air Mode Simulation" (AMM 32-09-02/201).
 (9)  S 864-010Do this task:  "Remove Electrical Power" (AMM 24-22-00/201).
 S 414-024

 (10) Install the third center ceiling panel that was removed (AMM 25-59-01/401).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400 MAINTENANCE MANUAL
 REVERSE THRUST LEVER OPERATED ARMING SWITCH - REMOVAL/INSTALLATION
_____________________________________________________________________
 1.  General_______
 A.  There are two tasks in this procedure. There is a task for the removal and a task for the installation of the reverse thrust lever operated arming switch.
 (1)  
The removal procedure has these parts:

 (a)  
The removal of the left cover assembly from the control stand

 (b)  
The removal of the electrical wires

 (c)  
The removal of the switch.

 (2)  
The installation procedure has these parts:

 (a)  
The installation of the switch

 (b)  
The installation of the electrical wires

 (c)  
An adjustment of the actuating lever

 (d)  
An adjustment of the switch

 (e)  
A test of the operation of the switch

 (f)  
The installation of the left cover assembly on the control stand.

 TASK 27-62-09-004-001
 2.  Reverse Thrust Lever Operated Arming Switch Removal (Fig. 401)___________________________________________________
　
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