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).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
25-57-06
ALL ú ú 01 Page 402 ú Oct 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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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25-57-06
ALL ú ú 01 Page 403 ú Oct 10/93
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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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PDU'S 1 THROUGH 7, AND 23R ú 25-57-07
ú ú 06 Page 501 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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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PDU'S 1 THROUGH 7, AND 23R ú 25-57-07
ú ú 06 Page 502 ú Oct 18/00
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A
747-400
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