29-22-00
 ALL  ú ú 06 Page 519 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

 S 865-251
 (11)
 Pressurize the right hydraulic system with the hydraulic service cart to 3000 psi with a flow of 30 gpm.

 S 865-252

 (12)
 Put the manual control switch for the PTU on the P61 panel in the ON position.

 S 865-254

 (13)
 Move the flap handle on the control stand to the 30 degree position.

 S 215-255

 (14)
 Make sure the flaps move to the fully extended position in less than 35 seconds.

 S 865-256

 (15)
 Put the bypass valve for the leading edge (LE) slat drive in POSITION 2 (normal mode) with the manual valve handle.

 WARNING:_______ KEEP PERSONS AND EQUIPMENT CLEAR OF THE LE SLATS.  MOVEMENT OF
 THE LE SLATS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO
 EQUIPMENT.  LE SLATS WILL MOVE WHEN YOU PUT THE BYPASS VALVE IN
 POSITION 2.

 NOTE: The bypass valve is in the left forward wing/body fairing.
____
 S 215-257
 (16)
 Make sure the LE slats move to the fully extended position.  The LE slats must move to this position in no more than 12 to 14 seconds from the time they start to move.

 S 865-258

 (17)
 Put the flap handle in the ZERO detent position to retract the flaps.

 S 865-259

 (18)
 Put the bypass valve for the leading edge slat drive to POSITION 1 (bypass mode) with the manual valve handle.

 S 865-260

 (19)
 Open this circuit breaker on the P11 panel:

 (a)  11D31, HYDRAULICS PTU CONT
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-22-00
 ALL  ú ú 08 Page 520 ú Dec 20/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 S 865-263
 (20)
 Set the hydraulic service cart to supply 1500 | 100 psi at full flow to the right hydraulic system.

 S 215-264

 (21)
 Make sure the pressure indication for the right hydraulic system on EICAS is at least 1400 psi.

 S 865-265

 (22)
 Put the flap handle on the control stand in the 30 degree position.

 S 215-266

 (23)
 Make sure the flaps move to the fully extended position in not less than 70 and no more than 120 seconds.

 S 865-267

 (24)
 Put the flap handle in the ZERO detent position to retract the flaps.

 S 865-268

 (25)
 Put the manual control switch for the PTU on the P61 panel in the OFF position.

 S 615-280

 (26)
 Fill the reservoir in the left hydraulic system (AMM 12-12-01/301).

 S 865-281

 (27)
 Put the depressurization valve on the left system reservoir in the closed position (AMM 29-11-00/201).

 H. Put the Airplane Back to Its Usual Condition
 S 415-282
 WARNING: USE THE PROCEDURE IN AMM 32-00-15/201 TO REMOVE THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  Remove the door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
　
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