(h)
Tighten the tubing nuts.
S 712-015
(3)
Turn the input arm and make sure the return spring (13) turns through its maximum arc of travel without interference.
S 222-016
(4)
Make sure the clearance between return spring (13) and adjacent wire bundles, clamps, and nut plates is more than 0.25 inch.
(5)
Connect electrical connector DB169C to the elevator feel computer.
S 862-019
(6)
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
S 432-017
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A
747-400 MAINTENANCE MANUAL
2) 7E20, R STAB TRIM S/O VLV
S 832-045
(7)
Do this task: "Elevator Feel Computer, Adjustment" (paragraph 4.).
S 712-046
(8)
Do this task: "Operational Test - Elevator Feel Computer" (Ref paragraph 5.).
TASK 27-31-14-832-020
4. Elevator Feel Computer Adjustment (Fig. 201)_________________________________
A. Special Tools and Equipment
(1) G12001-50 Rig Pin Kit
B. Parts ~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 201 | 3 | Bolt | 27-31-14 | 03 | 45 | | | 4 | Washer | | | 55 | | | 5 | Nut | | | 60 | | | | | | | | 2......…........…...................................…...........….....…........1
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 27-41-00/201, Horizontal Stabilizer Trim Control System
(4)
AMM 29-11-00/201, Main Hydraulic Supply System
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 Adjustment
(1)
Do this task: "Supply Electrical Power" (AMM 24-22-00/201).
(2)
Open the access door 312A (AMM 06-09-05/201).
S 862-021
S 012-022
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A
747-400 MAINTENANCE MANUAL
S 862-023
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).
S 862-024
(4)
Set the horizontal stabilizer to 0.00 degrees stabilizer leading edge up. Set dimension "B" on the stabilizer jack screw to
7.42 |.03 inches (AMM 27-41-00/201).
S 862-025
(5)
Do this task to release the pressure in the hydraulic systems No. 2 and No. 3: "Remove Hydraulic Power" (AMM 29-11-00/201).
S 862-026
(6)
Set the STAB TRIM 2 and 3 switches on the control stand to CUTOUT.
S 862-027
(7)
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
F.
Adjust the Elevator Feel Computer
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本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊 飛行操縱 FLIGHT CONTROLS 3(86)
