S 434-026
 CAUTION:_______MAKE SURE YOU INSTALL THE O-RING ON THE PUMP DRIVE SPLINE. THE O-RING PREVENTS LEAKAGE OF OIL FROM THE ENGINE GEARBOX.
 (6)  
Install a new O-ring (5) on the pump drive spline.

 S 644-027

 (7)  
Lubricate new O-rings (10, 12, 14, 16, 22, 24) and backup rings (11, 15, 23) with hydraulic lubricant or hydraulic fluid.

 S 434-029

 (8)  
Install new O-rings (10, 12, 14, 16, 22, 24) and backup rings (11, 15, 23) on adapters (9, 13, 21).

 (9)  
Remove all plugs from hydraulic pump (6) ports.

 S 644-032

 (10)
 Lubricate the threads on the adapters/unions (9, 13, 21) with hydraulic lubricant or hydraulic fluid.

 S 434-034

 (11)
 Install the adapters/unions (9, 13, 21) in the hydraulic pump (6) ports.

 S 434-031
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-11-05
 ALL  ú ú 01 Page 406 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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MAINTENANCE MANUAL

 S 434-037
 (12)
 Tighten adapter (9) in the pump case drain port to 266-294 pound-inches.

 S 434-036

 (13)
 Tighten adapter (13) in the pump pressure port to 713-787 pound-inches.

 S 434-038

 (14)
 Tighten adapter/union (21) in the pump supply port to 855-945 pound-inches.

 S 614-040

 (15)
 If the pump (6) is not filled with hydraulic fluid, add fluid through the case drain port.

 S 424-041

 (16)
 Put the pump (6) in position and carefully engage the pump drive shaft with engine drive shaft.

 NOTE: Do not lubricate the pump drive shaft, the spline is
____
 lubricated by engine oil.

 S 424-084
 (17)
 Turn the pump to let the nuts (2) go through the holes in the flange on the pump.

 S 424-042

 (18)
 Turn the pump (6) counterclockwise until the small ends of the slots in the pump are hard against the engine gearbox studs.

 S 434-043

 (19)
 Tighten the nuts (2) to 260-320 pound-inches.

 S 434-044

 (20)
 Remove all caps from the self-seal fittings (17, 20, 25) on the hydraulic hoses.

 S 434-045
 CAUTION: DO A CHECK OF THE EDP SUPPLY HOSE FOR A KINKED OR CLOSED
_______ CONDITION. A KINKED OR CLOSED HOSE CAN CAUSE FAILURE OF THE ENGINE-DRIVEN PUMP.
　
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