S 024-008
(2)
Remove the braking roller from the roller tray.
TASK 25-53-23-404-010
3. Braking Roller Installation (Fig. 401)
___________________________
A. Special Tools and Equipment
(1) 3PRE65B00040, Lower Cargo Door Opening Safety Barrier
B. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 52-34-00/001, Forward/Aft Cargo Doors
(3)
AMM 25-53-23/401, Transport Roller Installation
(4)
AIPC 25-53-16
C. Access
(1) Location Zone
100 Lower Half of Fuselage
D. Procedure
S 424-011
(1) Place the braking roller in position on the roller tray.
NOTE: Make sure the braking roller spins freely in the loading
____
direction after installation.
S 424-023
(2)
Use the two screws together with the washers to attach the braking roller to the roller tray.
S 424-020
(3)
Tighten the screws to 221 +/- 44 pound-inches
(25 +/- 5 newton-meters).
S 714-021
(4)
Make sure the braking roller spins freely in the loading direction and has a resistance to rotation in the unloading direction.
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747-400 MAINTENANCE MANUAL
E. Put the Airplane Back to Its Usual Condition
S 414-022
(1)
Remove the safety barrier (3PRE65B00040) from the opening of the cargo compartment if it is not necessary.
S 414-017
(2)
Close the cargo compartment door (AMM 52-34-00/001).
S 864-018
(3)
Remove the electrical ground power if it is not necessary (AMM 24-22-00/201).
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747-400 MAINTENANCE MANUAL
TRANSPORT ROLLER - REMOVAL/INSTALLATION
______________________________________
1. General_______
A. This procedure has these tasks:
(1)
The removal of the transport roller.
(2)
The installation of transport roller.
B. Transport rollers are installed on all roller trays in the forward and aft cargo compartments. The transport roller rotates with a minimum of friction in both directions on its hollow shaft.
TASK 25-53-24-004-001
2. Transport Roller Removal (Fig. 401)________________________
A. Special Tools and Equipment
(1) 3PRE65B00040, Lower Cargo Door Opening Safety Barrier
B. References
(1)
AMM 24-22-00/201, Manual Control
(2)
AMM 52-34-00/001, Forward/Aft Cargo Doors
(3)
AIPC 25-53-16
C. Access
(1) Location Zone
100 Lower Half of Fuselage
D. Prepare for the Removal
S 864-002
(1)
Supply electrical ground power (AMM 24-22-00/201).
S 014-003
(2)
Open the cargo compartment door (AMM 52-34-00/001).
S 494-004
WARNING: BE CAREFUL WHEN YOU ARE NEAR THE OPENING OF THE CARGO
_______ COMPARTMENT DOOR. INSTALL A SAFETY BARRIER (3PRE65B00040) ACROSS THE OPENING OF THE DOOR UNLESS AN ACCESS STAND IS AT THE DOOR. INJURY TO PERSONS CAN OCCUR IF THEY FALL THROUGH THE OPENING OF THE DOOR.
(3) Install a safety barrier (3PRE65B00040) across the opening of the cargo compartment door if it is necessary.
E. Remove the Transport Roller
S 024-019
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