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 C.  A green indicator pin on the housing of the rotary snubber extends out to show the quantity of the fluid.
 D.  The indicator pin retracts into the housing of the rotary snubber when the quantity of fluid decreases.
 E.  The length that the indicator pin extends out of the housing changes with different temperatures.
 TASK 52-11-17-206-001
 2.  Examine the Rotary Snubber (Fig. 601)__________________________
 A.  References
 (1)  
AIPC 52-11-03 Fig. 5, AIPC 52-11-09 Fig. 4, AIPC 52-11-14 Fig. 5, AIPC 52-11-17 Fig. 1

 B.  
Access

 (1)  
Location Zone
 271 Main Deck, STA 2040 to STA 2360, LH

 (2)  
Access Panel 271AL Panel, Access - Door Maintenance (Door 5, LH) 835L Door - No. 5 Main Entry, LH

 C.  
Procedure

 S 866-002
 (1)  
Close the main entry door.

 (2)  
Remove the maintenance access panel, forward of the door.

 (3)
Measure the length of the green indicator pin (Fig . 601).

 S 016-003
 S 226-006
 NOTE: The fluid in the rotary snubber is equivalent to the compound
____ used in the area of the torque tube. Leakage is not easy to see. You must use the indicator pin to see if the quantity of fluid decreased.
 (a)  The rotary snubber is serviceable if the extension of the indicator pin is the same as shown on Fig. 601.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

MAIN ENTRY DOOR
PIN EXTENSION - TEMPERATURE CHART (REFERENCE) 
TEMPERATURE  MINIMUM ALLOWABLE EXTENSION (INCHES)  EXTENSION (INCHES) MAXIMUM ALLOWABLE 
-45`F  -0.17 (BOTTOM OUT)  0.00 (FLUSH) 
+20`F  -0.17 (BOTTOM OUT)  +0.22 
+70`F  0.00 (FLUSH)  +0.41 
+120`F  +0.18  +0.59 

GREEN INDICATOR
(8.71-10.34 mm) PIN (EXTENDED)

B
Body Torque Tube Rotary Snubber Inspection (Door No. 5) Figure 601
D14781
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 416-005
 (4) Install the maintenance access panel, forward of the door.
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 ALL  ú ú 03 Page 603 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 MAIN ENTRY DOOR LATCH TORQUE TUBE - REMOVAL/INSTALLATION
________________________________________________________
 1.  General
_______
 A.  This procedure contains two tasks. The first task is the removal of the latch torque tube on the main entry door. The second task is the installation of the latch torque tube on the main entry door.
 TASK 52-11-19-004-001
 2.  Latch Torque Tube Removal (Fig. 401)
_________________________
 A.  Special Tools and Equipment
 (1)  
BACP18AM6B28H Pin, Mode Selector Lockout

 (2)  
DJ65B04957 Drill Jig, Latch Torque Tube Crank

 (3)  
TME65B04308 Dolly, Cargo/Main Entry Door

 B.  
References

 (1)  
AMM 25-22-01/401, Main Passenger Cabin Ceiling Access Panels

 (2)  
AMM 25-69-01/401, Door-Mounted Emergency Escape Slide/Rafts

 (3)  
AMM 52-11-02/401, Main Entry Door Lining and Insulation

 (4)  
AMM 52-11-06/401, Emergency Power Reservoir

 (5)  
DOOR 1;
 AIPC 52-11-13, Fig. 1, AIPC 52-11-19, Fig. 5
　
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