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E47336
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747-400
MAINTENANCE MANUAL
INSTALLATION TORQUE
TUBE SIZE (INCH) 0.250 0.375 0.500 0.625 0.750 1.000
TITANIUM, CRES TUBE 210 400 750 1050 1350 1800
ALUMINUM TUBE 170 250 420 540 675 1125
Installation Torques for Flareless Fittings in Pressurized Areas
Figure 406
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747-400
MAINTENANCE MANUAL
SCREW TOGETHER WELD-ON BULKHEAD FITTING
MICRO-OHMMETER
Bulkhead Fittings Figure 407
E47331
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747-400
MAINTENANCE MANUAL
CURRENT
MICRO-OHMMETER
Union/Tee Fittings
Figure 408
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747-400 MAINTENANCE MANUAL
FLARELESS TUBING ASSEMBLY - APPROVED REPAIRS
____________________________________________
1. General
_______
A. This procedure contains these tasks:
(1)
Tube Repair.
(2)
Swage BACS13BX Flareless Sleeves with the Harrison Elastomer Swagers 5175, 5570, and 5720.
(3)
Swage BACS13BX Flareless Sleeves with the 6633K01 Harrison Roller Swaging Kit.
(4)
Preset BACS13AP Flareless Sleeves.
(5)
Install the 921721 Cryolive Flareless Sleeve Assembly.
(6)
Install the BACC42W H-Coupling.
(7)
Install the 3P02111 or 3PHS111 Cryofit Coupling.
(8)
Install Permaswage Fittings.
(9)
Install the Rynglok 8010T permanent tube to tube union.
(10)
Repair Hydraulic Tubing with Flexible Hoses.
(11)
Repair 6061-T4 Aluminum Hydraulic Tubing.
(12)
Aluminum Fuel Tubes, temporary weld repair method.
B. This procedure gives the approved repairs for hydraulic, pneumatic, water, fire extinguisher, electrical rigid conduit, and other tube assemblies. Repair procedures include the replacement of damaged tube ends or the replacement of small damaged tube parts. You can use flareless tubes and sleeves, H-Coupling assemblies, Cryofit couplings, Permaswage fittings , Cryolive assemblies, or Rynglok unions.
C. For the approved repair of fuel system aluminum tubes, refer to CMM 28-00-12.
D. You can repair 6061-T4 aluminum tubes using 6061-T6 aluminum tube and flareless fittings. It is not acceptable to repair 6061-T6 aluminum tube with 6061-T4 aluminum tube or use 6061-T4 aluminum tube in place of 6061-T6 aluminum tube.
E. You can use approved 304-1/8 Hard or 21-6-9 corrosion-resistant steel tube assemblies to replace titanium tube assemblies. You can also use approved 304-1/8 Hard corrosion-resistant steel tube assemblies to replace 21-6-9 corrosion-resistant steel tube assemblies.
F. Replacements for aluminum lines may be made from Corrosion Resistant Steel (CRES) material.
NOTE: Use cadmium plated steel fittings when replacing aluminum lines
____ with corrosion resistant steel lines. Galvanic corrosion may occur if cadmium plated steel is not used.
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