S 034-017
(4) Remove the bolts (32) and washers (33) (4 locations) that hold the hydraulic pump to the RAT strut housing (16).
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757
MAINTENANCE MANUAL
S 024-069
CAUTION:_______ PULL ON THE HYDRAULIC PUMP TO REMOVE IT. DO NOT USE TOO MUCH
FORCE IF YOU PULL ON THE HYDRAULIC TUBES (24, 25, 26). THIS
CAN CAUSE DAMAGE TO THE HYDRAULIC TUBES (24, 25, 26) OR THE
SHIMS (29).
(5) Remove the hydraulic pump (17) with the hydraulic tubes (24, 25, 26) attached to it.
(a)
Pull on the hydraulic pump (17) to remove it from the RAT strut housing (16).
(b)
If it is necessary, pull lightly on the hydraulic tube (26) which has the largest diameter.
(c)
If it is necessary, lightly shake the hydraulic tube (26) to release the O-ring (31).
S 034-019
(6)
Remove the hydraulic tubes (24, 25, 26) from the hydraulic pump (17).
S 034-075
(7)
Remove the backup rings (30), o-rings (31) and shims (29) from the hydraulic tubes.
NOTE: On airplanes with a flexible outlet tube (25) there will
____ be no shims on the flexible outlet tube (25).
S 144-070
CAUTION: KEEP THE OLD SEALANT OUT OF THE RAT STRUT HOUSING (16), THE
_______ HYDRAULIC PUMP (17), AND THE TUBES (24, 25, 26). THE SEALANT CAN CAUSE THESE COMPONENTS TO BECOME CLOGGED.
(8) Remove the sealant from the RAT strut housing (16), the RAT hydraulic pump (17), and the tube nuts (27) with a plastic or wood scraper.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757 MAINTENANCE MANUAL
S 114-071
WARNING:_______DO NOT GET ACETONE IN YOUR MOUTH, OR EYES, OR ON YOUR SKIN. DO NOT BREATHE THE FUMES FROM ACETONE. PUT ON A PROTECTIVE SPLASH GOGGLE AND GLOVES WHEN YOU USE ACETONE. KEEP ACETONE AWAY FROM SPARKS, FLAME, AND HEAT. ACETONE IS A POISONOUS AND FLAMMABLE SOLVENT WHICH CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
CAUTION: KEEP THE ACETONE OUT OF THE RAT STRUT HOUSING AND THE HYDRAULIC
_______ PUMP. DO NOT ASSEMBLE THE COMPONENTS FOR A MINIMUM OF FIVE MINUTES TO LET THE ACETONE BECOME DRY. THE ACETONE CAN CAUSE CONTAMINATION OF THE INTERNAL PASSAGES OF THESE COMPONENTS.
(9) Remove all the remaining sealant with acetone.
I. Remove the Hub (Fig. 402)
S 034-021
(1)
Remove the screws (21) that attach the speed sensor cover (22) to the RAT strut.
S 034-022
(2)
Remove the screws (23) that attach the speed sensor (34) to the RAT strut.
S 034-023
CAUTION: DO NOT LIFT THE HUB BY THE TURBINE BLADES OR PUT THE HUB DOWN
_______ ON THE TURBINE BLADES. THE WEIGHT OF THE HUB CAN CAUSE DAMAGE TO THE TURBINE BLADES OR THE GOVERNOR MECHANISM.
(3)
Use a wrench WAS-33662 or a thin-wall socket wrench to remove the screws (36) that hold the hub bearing support to the strut housing.
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