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L08834
A
747-400
MAINTENANCE MANUAL
NOTE: REFER TO FIG. 810 FOR THE LENGTHS L1 AND L2.
Tubing Repair by Section Replacement
Straight or Bend - Extensive Damage
Figure 809
L08870
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A
747-400 MAINTENANCE MANUAL
FITTINGS USED FOR REPAIR TUBE ASSEMBLY L2 CUTOUT LENGTH FORMULA
FLARELESSPART NO. SLEEVE SWAGE METHOD UNION PART NO. SECTION FOR TUBE END SECTION TUBE CENTER FOR
BACS13BX Harrison Portable Swagers 5175 and 5720 or Swager 5570 Stationary Equivalent Equivalent MS21902 or 2 1 L1 Minus 2Z L1 Minus 2P L1 Minus 2P L1 Minus 2H L1 Minus 2Z 2 1 L1 Minus 2Z L1 Minus 2P L1 Minus 2P L1 Minus 2H L1 Minus 2Z
BACS13BX Swage Kit 6633K01 Harrison Roller
BACS13AP Hand or Machine Preset
CRYOLIVE Assembly 921721 N/A
35211 Swage Machine Harrison Roller 6777
BACS13BX Harrison Portable Swagers 5175 and 5720 or Swager 5570 Stationary Equivalent Permaswage Cryofit H-Fitting 1 2 L1 Minus (Z +0.10) L1 Minus (P+0.10) L1 Minus (H+0.10) L1 Minus (P+0.10) L1 Minus 2Z 2 N/A L1 Minus 2Z
BACS13BX Swage Kit 6633K01 Harrison Roller
BACS13AP Preset Hand or Machine
CRYOLIVE Assembly 921721 N/A
35211 Swage Machine Harrison Roller 6777
N/A N/A H-Coupling Cryofit Permaswage Rynglok L1 Minus 0.20
Procedure to Find the Tube Cutout Length L2
Figure 810 (Sheet 1)
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A
747-400
MAINTENANCE MANUAL
Example: You have made a decision that to repair tube damage: You will remove a tube end section
and replace it with a prefabricated tube assembly as shown on Fig. 806.
To make the repair tube end section, you roller swaged BACS13BX flareless sleeves to
the tube ends and tightened then to one end of a MS21902 flareless union.
Step 1: Measure the repair tube assembly total length L1 (Fig. 806).
Step 2: Observe the cutout length L2 formula (L1 minus 2Z ) in above table.
1
Step 3: find the Z value for tube size in Fig. 811.
1 Step 4: Subtract (Z times 2) from the measured L1 for cutout length L2.
1
1 REFER TO FIG. 811 FOR VALUES FOR H, P, Z AND Z .
1 2
Procedure to Find the Tube Cutout Length L2
Figure 810 (Sheet 2)
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L08933
A
747-400
MAINTENANCE MANUAL
Flareless Sleeve Tube End Values
Figure 811
L08958
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