(2)
The removal of the elevator feel computer
(3)
The installation of the replacement elevator feel computer
(4)
The adjustment of the elevator feel computer
(5)
The operational test of the elevator feel computer
(6)
The removal of the elevator feel computer filter
(7)
The installation of the elevator feel computer filter.
TASK 27-31-14-002-001
2. Elevator Feel Computer Removal (Fig. 201)______________________________
A. Special Tools and Equipment
(1)
G12001-50 Rig Pin Kit
B.
Standard Tools and Equipment
(1)
Bucket - 1 gallon capacity (for hydraulic fluid)
C.
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)
AMM 34-11-00/201, Pitot Static System
(5)
AIPC 27-31-14, Fig. 3
D.
Access
(1)
Location Zone
311 Area Aft of Pressure Bulkhead, LH
312 Area Aft of Pressure Bulkhead, RH
(2)
Access Panel 312A Horizontal Stabilizer Jackscrew Access Door
E.
Prepare for Removal
S 862-002
(1)
Do this task: "Supply Electrical Power" (AMM 24-22-00/201).
(a)
Provide hydraulic system No. 2 and No. 3 pressure
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
1. MOUNTING BOLT CONNECTOR (4 LOCATIONS) 18. CHECKNUT ELECTRICAL H2 HYDRAULIC
16.
WASHER
RETURN LINES
17.
NUT
STABILIZER
H3 HYDRAULIC FEEL MAST
PRESSURE LINES
2. INPUT 14. ELEVATOR RODFEEL COMPUTER H1 HYDRAULIC
13. RETURN SUPPLY LINES
SPRING
SEE C
8. FILTER
(SHOWN P1 STATIC 3. BOLT
INSTALLED) PORT VENT 4. WASHER
ELECTRICAL TUBING 5. NUT
CONNECTORS SEE A
P2 PITOT LINE 6. INPUT
(2 LOCATIONS) ARM
12. BACKUP
RETAINERS 7. PACKING
FWD 8. FILTER ELEMENT SEE B
11. PACKING
9. BACKUP
RETAINERS
STABILIZER
10. FILTER TRIM DRIVE
RETAINER MECHANISM
BALLSCREW
STOP A
"B"
FWD DIMENSION BALLNUT
STOP
RIG PIN E-5
6. INPUT ARM
14. ELEVATOR FEEL
FWD COMPUTER
B C
Elevator Feel Computer
Figure 201
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
(b) Operate horizontal stabilizer to full "A/C nose up" position.
S 862-003
(2)
Do this task to release the pressure in the hydraulic systems No. 2 and No. 3: "Remove Hydraulic Power" (AMM 29-11-00/201).
(a)
Place the two horizontal stabilizer cutout switches on centre pedestal in the cutout (off) position.
S 862-084
(3)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P7, Overhead Circuit Breaker Panel
1) 7E7, L STAB TRIM S/O VLV
2) 7E20, R STAB TRIM S/O VLV
S 862-004
(4)
Release the pressure in the auxiliary pitot systems No. 1 and No. 2 (AMM 34-11-00/201).
S 862-005
(5)
If the electrical power is not necessary, do this task: "Remove Electrical Power" (AMM 24-22-00/201).
S 012-006
(6)
Open the access door 312A (AMM 06-09-05/201).
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本文链接地址：747-400 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 3(84)
