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 A.  This procedure contains two tasks. One task removes the alternating current motor pumps for the left and right systems. The other task installs the alternating current motor pumps for the left and right systems.
 NOTE:  If the ACMP is being replaced, you will be required to replace the pressure and case drain filters. Do not replace the filters due to external pump leakage alone.
 TASK 29-11-01-004-001
 2.  Remove the Alternating Current Motor Pumps (ACMPs) for the Left and Right_________________________________________________________________________ Systems_______
 A.  General
 (1)  This procedure refers to the alternating current motor pump (ACMP) as the hydraulic pump.
 B.  References
 (1)  
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems

 (2)  
AMM 29-11-18/401, Left and Right System ACMP Filter Module R&I

 (3)  
AMM 32-00-15/201, Main Gear Door Locks

 (4)  
AMM 32-00-20/201, Landing Gear Downlocks

 C.  Access
 (1)  Location Zones
 143/144 MLG Wheel Well

 D.  Procedure (Fig. 401)
 S 494-002
 (1)  Make sure the downlocks are installed on the nose and main landing gear (AMM 32-00-20/201).
 S 494-003
 WARNING: DO THE PROCEDURE IN AMM 32-00-15/201 TO INSTALL THE DOOR LOCKS.
_______ THE DOORS OPEN AND CLOSE QUICKLY AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2)  Open the doors for the landing gear and install the door locks (AMM 32-00-15/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 29-11-01
 ALL  ú ú 01 Page 401 ú May 28/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757
MAINTENANCE MANUAL

FORWARD FAIRING OF THE RIGHT WHEEL WELL
SEE A
INBD
FORWARD FAIRING OF THE LEFT WHEEL WELL FWD
ALTERNATING CURRENTSEE A MOTOR PUMP (ACMP)
SEEB 1
C2
1. ELECTRICAL CONNECTOR
FORWARD FAIRING OF THE LEFT WHEEL WELL (THE FORWARD FAIRING OF THE
2. ELECTRICAL
CONNECTOR RIGHT WHEEL WELL IS OPPOSITE)
4. UNION
3. ELBOW  A
5. PACKING
28. PUMP
6.
 SUPPLY HOSE

7.
 SELF-SEAL

26.
 NUT

 COUPLER
27.
 WASHER (3 LOCATIONS)

8.
 REDUCER

9.
 PACKING

24.
 BOLT

25.
 WASHER

10. CASE DRAIN LINE
　
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