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747-400
MAINTENANCE MANUAL
(e) Install the bolt (20), the nuts (21 and 22), and the washers.
(f) Tighten the nut (22) to 60-80 pound-inches.
(g) Tighten the nut (21) to 30-40 pound-inches.
NOTE:____ Do not tighten the nut (22) again.
S 416-017
(5)
Close the access panels (Ref 06-09-06/201).
S 866-018
(6)
Remove 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) 180E23 ELEV/RUD VLV SYS 3
S 866-019
(7) Set all FLT CONTROL HYD POWER TAIL switches on the P461 Pilots' Overhead Maintenance Panel to NORM.
S 866-026
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.
(8) Do this task to pressurize the hydraulic system No. 2 or 3: "Supply Hydraulic Power" (Ref 29-11-00/201).
NOTE: The hydraulic system No. 2 is for the left inboard elevator
____ and No. 3 is for the right inboard elevator.
S 226-021
(9)
Make sure the inboard elevator is in |0.40 inch of the inboard elevator neutral position.
S 826-022
(10)
If elevator is out of tolerance, do this task: "Inboard Elevator Adjustment" (Ref 27-31-00/501).
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(11)
If the electrical power is not necessary, do this task: "Remove Electrical Power" (Ref 24-22-00/201).
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747-400 MAINTENANCE MANUAL
S 866-024
(12) If the hydraulic power is not necessary, do this task: "Remove Hydraulic Power" (Ref 29-11-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-31-07
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747-400 MAINTENANCE MANUAL
OUTBOARD ELEVATOR POWER CONTROL PACKAGE - 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 outboard elevator power control package (PCP). Also, there is one task each for the removal and the installation of the outboard elevator PCP filters. The procedure has these parts:
(1)
The preparation for the removal of the outboard elevator PCP
(2)
The removal of the outboard elevator PCP
(3)
The installation of the replacement PCP
(4)
The adjustment of the outboard elevator PCP
(5)
The operational test of the outboard elevator PCP
(6)
The removal of the outboard elevator PCP filter
(7)
The installation of the replacement filter
(8)
The operational test of the outboard elevator PCP filter.
B.
The removal and installation procedure is the same for the left or the right outboard elevator PCPs and their filters.
TASK 27-31-08-002-001
2. Outboard Elevator Power Control Package (PCP) Removal (Fig. 201)_____________________________________________________
A. Special Tools and Equipment
(1)
PME65B80549 Outboard Elevator Actuator Handling Cradle
(2)
3ME65B05730-1 Outboard Elevator Lock (left elevator)
(3)
3ME65B05730-2 Outboard Elevator Lock (right elevator)
