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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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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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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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