NOTE: Turn the latch handle slowly to prevent damage to the latch
____
 mechanism and latches.

 S 214-014
 (9)  
Make sure the DRIVE DISABLED light on the master cargo control panel is off when the latch handle is in the locked position.

 S 864-015

 (10)
 Remove the electrical power if it is not necessary
 (AMM 24-22-00/201).

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A

747-400
MAINTENANCE MANUAL

POWER DRIVE UNIT NO. 4L
HANDLE LOCK
ACCESS PANEL
HANDLE
LATCH PLATE
LATCH
FLOOR WELL
FWD
Electrical/Electronic Bay Access Panel Installation
Figure 401

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C87376
A
747-400 MAINTENANCE MANUAL
 MANUAL DISENGAGE CONTROL - ADJUSTMENT/ TEST
___________________________________________
 1. General
_______
 A. The following instructions are provided in this subject:
 (1)  
Adjust Manual Disengage Control

 (2)  
Manual Disengage Control Test

 TASK 25-57-07-255-001
 2. Adjust Manual Disengage Control (Fig. 501)
_______________________________
 A. Access
 (1)  Location
 (a)  200 Upper Half of Fuselage (Main Deck)
 B. Adjust Manual Disengage Control
 S 435-002
 (1)  
Adjust disengage lever stop screw until disengage lever is parallel to the adjacent kick panel or sidewall lining position.

 S 415-003

 (2)  
Remove applicable PDU, with disengage cable attached, and rest on floor (Ref 25- 57-01).

 S 415-004

 (3)  
With cable disconnected from PDU and minimum four inch radius loop at PDU end of cable, check that force to raise lever does not exceed 0.63- pound at end of lever.

 S 825-038

 (4)  
The power drive unit disengage must be positioned within the dimension range for the full "engaged" position (detail B).

 NOTE: No lockwire shall be used to secure the anchor nut at the
____ PDU. This is necessary to permit easy removal for power drive unit replacement.
 S 825-039
 (5)  Adjust micro-adjust fitting (detail C) to remove cable slack, if required:
 (a)  
Loosen jamnut at each end of micro-adjust barrel.

 (b)  
Hold micro-adjust end fittings to prevent turning if necessary, and rotate barrel to lengthen or shorten cable casing as required.

 NOTE: Exposed threads at each end of micro-adjust must not
____
 exceed 1.06 inch.

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A
747-400
MAINTENANCE MANUAL

STROKE ADJUSTMENT STOP SCREW
PDU'S WITH DISENGAGE CABLE

4-INCH DIAMETER MINIMUM
Disengage Control for Power Drive Unit Figure 501 (Sheet 1)

K24174
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A
747-400
　
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