(g)  
Make sure that the lockwasher (5) is installed.

 (h)  
Put the hinge bolt (6) through the lockwasher.

 (i)  
Apply a layer of grease to the bolt shank.

 (j)  
Install the hinge bolt through the hinge fittings and hinge with the head outboard.

 (k)  
Install the washer (8) and the nut (7) on the hinge bolt.

 (l)  
If it is necessary, install the large washers (4) to keep a clearance of 0.01-0.06 inch.

 (m)  
Use a bonding meter to make sure the resistance of the bonding jumper connection is less than 0.010 ohms.

 (n)  
Tighten the inboard elevator nuts to 290-410 pound-inches torque plus run-on torque.

 (o)  
Tighten the outboard elevator nuts to 95-110 pound-inches plus run on torque.

 (3)  
Install the hinge access panel.

 (4)  
Manually move the elevator to the neutral position.

 S 864-057

 (5)  
For the inboard elevator; Move the control column to follow the elevator movement.

 S 414-015
 S 864-016
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MAINTENANCE MANUAL

 (6)  S 864-058For the outboard elevator; Move the outboard elevator PCP summing lever to follow the elevator movement.
 (7)  S 864-017Apply external power to the AC buses (AMM 24-22-00/201).
 (8)  S 864-018Remove the DO-NOT-CLOSE tags and close these circuit breakers: (a) P180, DC Power Distribution Panel 1) 180E7, ELEV/RUD VLV SYS 2 2) 180E22, ELEV/RUD VLV SYS 4 3) 180H8, ELEV/RUD VLV SYS 1 4) 180H23, ELEV/RUD VLV SYS 3
 (9)  S 864-019Set all FLT CONTROL HYD POWER TAIL switches on the P461 Pilots' Overhead Maintenance Panel in NORM.
 S 864-063

 (10)
 Pressurize the hydraulic systems No. 1 and 4 (AMM 29-11-00/201).

 S 714-022

 (11)
 Examine the free movement of the replacement hinge and the elevator seal clearance at the hinge access panel:

 (a)  
Move the control column fully forward.

 (b)  
Make sure the elevator moves freely while it moves to the fully down position.

 (c)  
Move the control column fully aft.

 (d)  
Make sure the elevator moves freely while it moves to the fully up position.

 S 864-023
 (12)
 Set the STAB TRIM 2 and 3 switches to ON.

 S 864-024

 (13)
 Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  
P7, Overhead Circuit Breaker Panel 1) 7E7, STAB TRIM L S/O VLV

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747-400 MAINTENANCE MANUAL
 2) 7E20, STAB TRIM R S/O VLV
 S 864-025
 (14)
 Release the pressure from the hydraulic system if it is not necessary (AMM 29-11-00/201).

 S 864-026

 (15)
 Remove external power from the AC buses if it is not necessary (AMM 24-22-00/201).

 TASK 27-31-03-004-027
 4.  Reaction Hinge Removal (Fig. 402)______________________
 A. Special Tools and Equipment
 (1)  
ST2580-267 - Spanner Wrench Adapter Set

 B.
References

 (1)  
AMM 06-09-06/201, Stabilizer and Elevator Access Doors and Panels

 (2)  
AMM 24-22-00/201, Manual Control

 (3)  
AMM 29-11-00/201, Main Hydraulic Supply System

 (4)  
IPC 29-31-09, Fig. 1

 (5)  
IPC 55-20-03, Fig. 1

 (6)  
IPC 55-20-04, Fig. 1

 (7)  
IPC 55-50-16, Fig. 1

 C.
Access

 (1)  
Location Zone
 335 Inboard Elevator, LH
 345 Inboard Elevator, RH
 336 Outboard Elevator, LH
　
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