CAUTION: DO NOT USE TOOLS TO TIGHTEN THE FUEL LINE FITTINGS.
_______ DAMAGE TO THE FITTING COMPONENTS COULD OCCUR OR THE ADJACENT FITTINGS COULD LOOSEN.
 (d)  
Tighten with your hand the coupling nut on the ferrule.

 (e)  
Install the lockwire on the coupling nut.

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 28-22-07
 ALL  ú ú 01 Page 410 ú May 28/00

A

757
MAINTENANCE MANUAL

 S 424-029
 (6)  To install the flexible full coupling (Fig. 404), do these steps:
 NOTE: Make sure the two ends of the fuel line are not out of
____ alignment by more than four degrees. Make sure the offset between the two ends is not more than 0.06 inch.
 (a)  
Put the coupling nut on the ferrule on the end of one fuel line.

 (b)  
Put the flexible full coupling on the ferrule on the end of the adjacent fuel line.

 (c)  
Install one new retaining ring on each ferrule.

 (d)  
Install one new O-ring on each ferrule.

 (e)  
Put the two fuel lines together with a space of 0.15 + 0.05

_ inch between the ferrules.

 (f)
Connect the retainer halves together on the two fuel lines.

 CAUTION: DO NOT USE TOOLS TO TIGHTEN THE FITTINGS ON THE FUEL
_______ LINE. DAMAGE TO THE FITTING COMPONENTS COULD OCCUR OR THE ADJACENT FITTINGS COULD LOOSEN.
 (g)  
Install the coupling nut on the flexible full coupling with your hand.

 (h)  
Install the lockwire on the coupling nut.

 S 424-007
 (7)  
Install the rigid tube coupling on the fuel line as it is neccessary (Fig. 402).

 (a)  
Install the ferrule on the fuel line.

 (b)  
Put the coupling nut on the ferrule.

 (c)  
Put the new retaining ring on the ferrule between the ferrule end flange and the coupling nut.

 (d)  
Install the new O-ring in the coupling body.

 CAUTION: DO NOT USE TOOLS TO TIGHTEN THE FUEL LINE FITTINGS.
_______ DAMAGE TO THE FITTING COMPONENTS COULD OCCUR OR THE ADJACENT FITTINGS COULD LOOSEN.
 (e)  
Install the coupling nut on the coupling body.

 (f)  
Tighten the coupling nut with your hand.

 (g)  
Install the lockwire between the coupling nut and the ferrule.

 S 424-009
 (8)  
Install the flange couplings on the fuel line if it is necessary.
　
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