29-21-00
ALL ú ú 02 Page 207 ú Jan 28/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 862-020
WARNING:_______ KEEP PERSONS AND EQUIPMENT AWAY FROM THE PATH OF THE RAT AND
THE RAT COMPARTMENT DOOR. THE RAT AND THE RAT COMPARTMENT DOOR
MOVE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO
EQUIPMENT.
(9)
Hold the ground manual switch in the up (stow) position until the RAT is fully retracted.
S 212-021
(10)
Make sure the RAT UNLOCKED light on the overhead panel, P5, is off.
S 862-022
(11)
Close the six EICAS circuit breakers on the P11 panel.
S 862-023
(12)
Push the ELEC/HYD switch on the EICAS MAINT panel, on the right side panel, P61.
S 212-024
(13)
Make sure the RAT UNLOCKED and RAT messages do not show on the EICAS display.
S 412-025
(14)
Install the access panel for the ground manual switch in the fairing on the aft bulkhead of the right wheel well.
S 412-026
WARNING: USE THE PROCEDURE IN AMM 32-00-15/201 TO REMOVE THE DOOR
_______ LOCKS. THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(15)
Remove the door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
S 862-027
(16)
Remove the power from the right hydraulic system if it is not necessary (AMM 29-11-00/201).
S 862-028
(17)
Remove the electrical power if it is not necessary (AMM 24-22-00/201).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
29-21-00
ALL ú ú 03 Page 208 ú Jan 28/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
TASK 29-21-00-012-029
4. Get Access to the Retracted RAT
_______________________________
NOTE: This procedure gives access to the RAT if it is in the retracted
____
position and will not extend.
A. Equipment
(1) RAT Circuit Breaker Lock Set, B27065-9 or Equivalent
B. Consumable Materials
(1) D00013 Grease, MIL-G-23827
C. References
(1)
AMM 06-41-00/201, Fuselage Access Doors and Panels
(2)
AMM 12-21-30/301, Ram Air Turbine
(3)
AMM 53-66-01/401, Aft Wing/Body Fairing
D. Access
(1)
Location Zones 143/144 MLG Wheel Well 198 Wing to Body - Aft Lower Half (Right) 211/212 Control Cabin 710 Nose Landing Gear and Doors 730/740 Main Landing Gear and Doors
(2)
Access Panels
198CR Ram Air Exhaust Louvers
198NZ Secondary Access RAT Mechanism
E. Get Access to the Retracted RAT
S 862-030
(1) Open these circuit breakers on the overhead panel, P11, and install the RAT circuit breaker lockset:
(a)
11D26, HYDRAULIC RAT CONT, or HYDRAULIC RAT AUTO CONT
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