25-51-26
ú ú 03 Page 401 ú Jan 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
CEILING LINING PANEL AND SUPPORT BRACKETS)
A-A
Aft Cargo Loader Control Switch Installation Figure 401
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE CARGO LOADER SYSTEM ú
25-51-26
ú ú 03 Page 402 ú Sep 20/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
TASK 25-51-26-404-008
3. Install the Control Switch (Fig. 401)
__________________________
A. Consumable Materials
(1) G01288 Tape - Double-back
B. References
(1) 24-22-00/201, Electrical Power - Control
C. Access
(1)
Location Zone
153 Aft Cargo Compartment (Left)
(2)
Access Panel
822 No. 2 Cargo Door
D. Procedure
S 424-009
(1)
Put the switch on the support bracket and install the screws.
S 434-010
(2)
Connect the wires to the terminals on the switch.
S 434-011
(3)
Install the ceiling panel around the switch cutout with new double-back tape.
S 434-012
(4)
Install the bezel and the screws to attach the ceiling panel to the structure.
S 864-013
(5)
Remove the DO-NOT-CLOSE tag and close this P34 panel circuit breaker:
(a) 34A7, AFT CARGO LOADER CONT
S 864-014
(6)
Supply electrical power (Ref 24-22-00).
S 714-015
(7)
Put the control switch in the LOAD position.
(a) Make sure the modules extend forward.
S 714-016
(8)
Put the control switch in the UNLOAD position.
(a) Make sure the modules retract aft towards the cargo door.
(9)
Remove electrical power if it is not necessary (Ref 24-22-00).
S 864-017
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE CARGO LOADER SYSTEM ú
25-51-26
ú ú 03 Page 403 ú Sep 20/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
AFT CARGO LOADER LIMIT SWITCHES - REMOVAL/INSTALLATION
______________________________________________________
1. General_______
A. This procedure contains two tasks.
(1)
The first task is the instructions to remove and install the retract-limit switch for the aft cargo loader.
(2)
The second task is the instructions to remove and install the extend-limit switch for the aft cargo loader.
TASK 25-51-27-904-001
2. Retract-Limit Switch - Removal/Installation (Fig. 401)___________________________________________
A. References
(1)
24-22-00/201, Electrical Power - Control
(2)
25-50-02/401, Cargo Compartment Sidewall Panels
(3)
25-51-00/201, Cargo Loader Systems (Deactivation)
(4)
25-51-00/501, Cargo Loader System
B. Access
(1)
Location Zones
154 Aft Cargo Compartment (Right)
(2)
Access Panels
822 No. 2 Cargo Door
C. Procedure - Remove the Retract-Limit Switch
S 864-002
(1)
Hold the control switch in the LOAD position until the modules are fully forward.
S 044-003
(2)
If the cargo loader does not operate, do the Deactivate the Cargo Loader procedure (Ref 25-51-00/201).
S 864-004
(3)
Remove electrical power (Ref 24-22-00).
S 864-005
(4)
Open these circuit breakers on the APU external power panel, P34, and attach DO-NOT-CLOSE tags:
(a)
34A7, AFT CARGO LOADER CONT
(b)
34B16, AFT CARGO LOADER DRIVE
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