(h)  
Install the lockwire on the filter retainer (10).

 F.
Do a Test of the Elevator Feel Computer Filter

 S 862-081
 (1)  
Do this task: "Supply Electrical Power" (AMM 24-22-00/201).

 S 862-064

 (2)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  
P7, Overhead Circuit Breaker Panel
 1) 7E7, L STAB TRIM S/O VLV
 2) 7E20, R STAB TRIM S/O VLV

 S 862-065
 WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (3)  
Do this task to pressurize the hydraulic systems No. 2 and No. 3: "Supply Hydraulic Power" (AMM 29-11-00/201).

 (4)  
Examine the filter for a hydraulic leak.

 (5)  
Fill the hydraulic reservoirs if it is necessary (AMM 12-12-01/301).

 S 862-068

 (6)  
If the hydraulic power is not necessary, do this task: "Remove Hydraulic Power" (AMM 29-11-00/201).

 S 792-066
 S 612-067
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 27-31-14
 ALL  ú ú 01 Page 214 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 747-400 MAINTENANCE MANUAL
 (7)  S 412-069Close the access door 312A (AMM 06-09-05/201).
 (8)  S 862-070If the electrical power is not necessary, do this task: Electrical Power" (AMM 24-22-00/201). "Remove

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 27-31-14
 ALL  ú ú 01 Page 215 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 ELEVATOR FEEL UNIT - MAINTENANCE PRACTICES
__________________________________________
 1.  General_______
 A.  There are six tasks in this procedure. There is one task each for the removal, the installation, the adjustment, and the operational test of the elevator feel unit. Also, there is one task each for the removal and the installation of the elevator feel actuator. The procedure has these parts:
 (1)  
The preparation for the removal of the elevator feel unit

 (2)  
The removal of the elevator feel unit

 (3)  
The installation of the replacement elevator feel unit

 (4)  
The adjustment of the elevator feel unit

 (5)  
The operational test of the elevator feel unit

 (6)  
The removal of the elevator feel actuator

 (7)  
The installation of the elevator feel actuator.

 B.  
The adjustment of the elevator feel unit is completed while the remainder of the elevator control system stays the same and correctly adjusted.

 TASK 27-31-17-002-001
 2.  Elevator Feel Unit Removal (Fig. 201)__________________________
 A.  Special Tools and Equipment
 (1)  
G12001-50 Rig Pin Kit

 B.  
References

 (1)  
AMM 06-09-05/201, Body Section 48 Access Doors and Panels

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

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

 (4)  
AIPC 27-31-17, Fig. 1

 C.  
Access

 (1)  
Location Zone 315 Area Aft of Stabilizer Box Compartment, LH 316 Area Aft of Stabilizer Box Compartment, RH

 (2)  
Access Panel
 315A Access Door

 D.  
Prepare for Removal

 (1)
Do this task: "Remove Electrical Power" (AMM 24-22-00/201).

 S 862-003

 (2)  
Make sure you do this task to release the pressure in the hydraulic systems No. 2 and No. 3: "Remove Hydraulic Power" (AMM 29-11-00/201).

 (3)  
Open the access door 315A (AMM 06-09-05/201).
　
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