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A 
747-400 
MAINTENANCE MANUAL
Flight Compartment Smoke Shutter 
Figure 201 (Sheet 1)
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A 
747-400 MAINTENANCE MANUAL 
SMOKE SHUTTER 
CONTROL ROD 
INTERCOSTAL 
FUSELAGE 
MUFFLER 
A 
FWD LEVER 
LOCKNUT (2 LOCATIONS) 
BELLCRANK 
A
CABLE 
BRACKET 
D 
BELLCRANK 
CABLE 
CONTROL ROD 
3.01 |0.07 INCHES 
OUTBOARD FACE OF THE STRINGER S-O 
OUTBD STRINGER S-O (REF) 
FWD 
A-A 
Flight Compartment Smoke Shutter 
Figure 201 (Sheet 2)
A64844
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747-400 MAINTENANCE MANUAL
 C. Procedure
 S 212-002
 (1)  
Push aft on the tee handle until it stops.
S 482-003
 (2)  
Attach the spring scale to the tee handle.
S 222-004
 (3)  
Measure the force to move the tee handle forward with the spring scale.
 NOTE: The force must not be more than 10 pounds.
____
 (a)  If the force is more than 10 pounds, do this task: "Flight Compartment Smoke Shutter Adjustment".
 S 082-006
 (4)  
Remove the spring scale from the tee handle.
S 712-007
 (5)  
Push aft on the tee handle until it stops.
 NOTE: The tee handle must move freely in the forward and aft
____
 directions.
 (a)  If the tee handle does not move freely, do this task: "Flight Compartment Smoke Shutter Adjustment".
 S 212-038
 (6)  Make sure the shutter opens and closes correctly.
 TASK 25-64-05-202-047
 5. Smoke Evacuation Shutter Operational Check
___________________________________________
 A. General
 (1)  This task is a visual check to see that the smoke evacuation shutter opens and closes correctly.
 B. Access
 (1)  Location Zones
 221 Control Cabin, Left
 222 Control Cabin, Right
 C. Procedure
 S 982-041
 (1)  
Push the smoke evacuation tee handle completely in.
 (2)  
Make sure the smoke shutter is fully closed.
 S 212-042
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747-400 MAINTENANCE MANUAL
 S 982-046
 (3)  
Pull the smoke evacuation tee handle completely out.
 
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