(2)  
The installation of the limit switch assembly.
 B.  The limit switch assembly is below the PDU and attaches to the structure in the floor. This procedure is applicable to these steerable PDUs only:
 (1)  
PDU 5R and 5L
 (2)  
PDU 4R and 4L
 (3)  
PDU 2
 (4)  
PDU 3
 (5)  
PDU 6R and 6L
 (6)  
PDU 7R and 7L
 (7)  
PDU 23R
 (8)  
PDU 24
 TASK 25-57-15-004-001
 2.  PDU Limit Switch Assembly Removal (Fig. 401)_________________________________
 A.  References
 (1)  AMM 25-57-01/401, Power Drive Units
 B.  Access
 (1)  Location Zone
 210 Main Deck
 C.  Procedure
 S 014-002
 (1)  
Remove the steerable PDU to get access to the limit switch assembly (AMM 25-57-01/401).
S 034-003
 (2)  
Disconnect the electrical connector plug for the limit switch assembly.
S 034-010
 (3)  
PDU'S 4R AND 4L, 5R AND 5L; Remove the six screws which attach the limit switch assembly to the structure.
S 034-011
 (4)  
PDU'S 2, 3, 6R AND 6L, 7R AND 7L, 23R, AND 24; Remove the three screws which attach the limit switch assembly to the structure.
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A
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MAINTENANCE MANUAL
(EXAMPLE) PDU  
DISENGAGE CABLE DRIVE-WHEEL  
ELECTRICAL RECEPTACLE  CONNECTOR PDU ELECTRICAL LOCKPIN 
LIMIT SWITCH (EXAMPLE)STEERING ACTUATOR (REF) SEE A 
ELECTRICALLY STEERABLE PDU 
(EXAMPLE)
PDU Limit Switch Removal and Installation 
Figure 401 (Sheet 1)
K25866
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MAINTENANCE MANUAL
FREIGHTERS; PDU's 2, 3, 6R AND 6L, 7R AND 7L, 23R, 24 COMBIS; PDU's 23R, 24 
PDU Limit Switch Removal and Installation Figure 401 (Sheet 2) 
K26181
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A 
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MAINTENANCE MANUAL
SWITCH 
LIMIT SWITCH 
B
2 
FREIGHTERS; PDU's 4R AND 4L, 5R AND 5L 
PDU Limit Switch Removal and Installation Figure 401 (Sheet 3) 
K26006
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747-400 MAINTENANCE MANUAL
 S 024-005
 (5)  Remove the limit switch assembly.
 TASK 25-57-15-404-006
 3.  PDU Limit Switch Assembly Installation (Fig. 401)______________________________________
 A. References
 
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