S 438-261
(12)
When ready to complete final joining/torquing of the coupling nut/Cryolive flareless sleeve to the mating fitting, remove and discard the plastic cap by unscrewing the coupling nut (see Fig. 833).
NOTE: The plastic caps are manufactured from polycarbonate material
____
and may be recycled.
TASK 20-10-09-408-262
7. Install the BACC42W H-Coupling (Fig. 822)______________________________
A. General
(1) The BACC42W H-coupling has a union, coupling, slide, and nut. You can use the H-coupling on fuel and hydraulic high pressure (3000 psi) lines of Ti-3AL-2.5V, CRES 21-6-9, and CRES 304 1/8 hard tubing. This repair is also approved for line repair of CRES 304 annealed and 6061-T6 aluminum lines in 3000 psi or lower pressure applications. You can use this repair on tubing that is installed and in use.
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20-10-09
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ú ú ú 01.101 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 817Sep 28/02
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MAINTENANCE MANUAL
(2) You can repair defects that have a maximum width of 3/8 inch. You
must make splices on larger defects. The minimum workable splice
section with two H-couplings and a length of tube is 4.5 inches
(Fig. 809).
B. Equipment
(1) Tube Coupling Assembly - BACC42W( ),
(Sierracin/Harrison, 3020 Empire Way, Burbank,
California)
NOTE: The number after the W in the____
part number gives the size of the
coupling in sixteenths. For example,
BACC42W6 fits 3/8-inch tube size. The
BACC42W is superceded by BACC42W-T which
is used on Ti-3AL-2.5V and all other
hydraulic tubing. You can use BACC42W
on all hydraulic tubes except
Ti-3AL-2.5V.
(2) Consumable Materials
(a) G00270 Masking Tape
(b) B01000 Solvent - General Cleaning of Metal
(Series 80)
C. Procedure
ú
ú S 868-365
ú
ú
WARNING: DO NOT USE BACC42W H-COUPLINGS ON ANY OXYGEN LINES OR ON FLUID_______
ú LINES IN THE FIRE ZONES OF THE ENGINES OR APU'S. DAMAGE TO
ú EQUIPMENT OR INJURY TO PERSONS CAN OCCUR.
ú
CAUTION: DO NOT TIGHTEN THE COUPLING ASSEMBLY BY HAND AFTER YOU REMOVE_______
IT FROM THE SHIPPING CONTAINER OR BEFORE YOU INSTALL IT ON THE
TUBE. THE COUPLING ASSEMBLY HAS NO MORE THAN ONE THREAD
ENGAGED. YOU CAN COMPRESS THE UNION AND MAKE THE COUPLING
ASSEMBLY DIFFICULT TO PUT IN POSITION.
(1) Remove pressure from the systems where you will do repairs.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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MAINTENANCE MANUAL
S 118-264
WARNING: DO NOT GET SOLVENTS IN YOUR MOUTH OR YOUR EYES, OR ON YOUR
_______ SKIN. DO NOT BREATHE THE FUMES FROM SOLVENTS. SOLVENTS ARE HAZARDOUS MATERIALS. SOLVENTS MAY BE FLAMMABLE OR HARMFUL TO THE ENVIRONMENT. REFER TO PRODUCT MATERIAL SAFETY HANDLING DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FORPROPER HANDLING PROCEDURES.
(2)
Use solvent, Series 80 (AMM 20-30-80/201) to clean the tube in the
(5)
Install tape on the nut side of the clearance with a minimum of 0.56 inch from the tube end and a maximum of 0.675 inch from the center of the clearance (Fig. 822).
S 948-268
(6)
Use the same measurements to make a mark (index line) on the coupling side of the tube.
S 948-269
(7)
Find and make a mark (marking dots) on the nut and coupling side of the tube (Fig. 822).
area where you will install the H-coupling.
(3) S 358-265Cut the tube.
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