S 034-073
(3)
Seal the hydraulic lines with a cap.
S 034-074
(4)
Seal the EAS hydraulic ports with a cap.
S 034-075
CAUTION:_______DO NOT PERMIT CONTAMINATION TO GET INTO THE EAS. THE EAS IS A SENSITIVE DEVICE. CONTAMINATION IN THE EAS CAN CAUSE DAMAGE AND FAILURE OF THE EAS.
(5)
Disconnect the electrical connector from the EAS electrical
receptacle.
S 034-076
(6)
Put a cover on the EAS electrical receptacle.
S 034-148
(7)
Put a cover on the electrical connector that connects to the EAS electrical receptacle.
S 034-077
(8)
Remove the nut (7), washer (6), and bolt (5) that connect the control rod (8) to the output crank of the EAS.
(9)
Move the control rod away from the EAS.
S 034-079
(10)
Remove the bolts (1), washers (2), and nuts (3) that hold the EAS to the shallow end of the EAS mounting bracket.
S 034-078
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747-400 MAINTENANCE MANUAL
S 034-080
(11)
Hold the EAS in its position. Remove the bolts (1) that hold the EAS to the deep end of the EAS mounting bracket.
S 024-081
(12)
Remove the EAS from the mounting surface.
TASK 22-12-01-404-163
3. Install the EAS (Fig. 401 and Fig. 402)
_______________
A. Parts
~.............................................................................. | AMM | | AIPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Bolt, Hex Head | 22-12-01 | 01 | 80 | | | 2 | Washer, Flat | | | 85 | | | 3 | Nut, Hex | | | 90 | | | 4 | Autopilot Servo Assy, Elevator | | | 75 | | | 5 | Bolt, Hex Head | | | 25 | | | 6 | Washer, Flat | | | 35 | | | 7 | Nut, Hex | | | 40 | | | 8 | Control Rod Left and Right | | | 50 | | | | Center | | | 45 | | | 9 | Torque Tube Assy, Aft Quadrant | | | 20 | | | 10 | Bolt, Hex Head | | | 25 | | | 11 | Washer, Flat | | | 35 | 2......…........…...................................…............….....….......1
B. Special Tools and Equipment
(1)
G12001-XX - Rig Pin Kit
(2)
Model 101A - Phase Synchronous Voltmeter, Electronic Aviation Systems, Inc., P.O. Box 1588, Renton, WA 98057
C. Standard Tools and Equipment
(1) Bonding Meter - Autron T477W
D. Consumable Materials
(1) A00247 Sealant - Chromate type BMS 5-95, Class B-2
E. References
(1)
AMM 06-09-05/201, Body Section 48 Access Doors and Panels
(2)
AMM 20-22-01/601, Electrical Bonding
(3)
AMM 22-10-00/501, Autopilot/Flight Director System
(4)
AMM 24-22-00/201, Manual Control
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747-400 MAINTENANCE MANUAL
(5)
AMM 25-59-01/401, Main Deck Cargo Compartment Lining Panels
(6)
AMM 29-11-00/201, Main Hydraulic Supply System
(7)
AMM 34-11-00/201, Pitot-Static System
(8)
AIPC 22-12-01, Fig. 1
F. Access
(1)
Location Zones
211 Main Deck Portal to STA 488, LH
212 Main Deck Portal to STA 488, RH
315 Area Aft of Stabilizer Box Compartment, LH
316 Area Aft of Stabilizer Box Compartment, RH
(2)
Access Panel
315A Access Door
G. Prepare for the Installation
S 864-082
(1)
Make sure the FLT CONTROL HYD POWER TAIL 1, 2, and 3 switches are in the SHUTOFF position. You can find these switches on the Pilots' Overhead Maintenance Panel (P461).
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