28-22-61
 ALL  ú ú 01 Page 401 ú Nov 15/98
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL

Boost Pump Bypass Valve
Figure 401

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 28-22-61
 ALL  ú ú 01 Page 402 ú Jul 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 034-013
 (2)  
Disconnect the coupling from the valve.

 S 034-014

 (3)  
Discard the O-ring.

 S 034-015

 (4)  
Remove the bolts, the nuts, and the washers that attach the valve to the tubing flange.

 NOTE: Keep the bonding jumper for the subsequent installation.
____
 S 024-016
 (5)  
Remove the bypass valve.

 S 034-017

 (6)  
Discard the O-ring.

 TASK 28-22-61-404-005