References
 (1)  
20-30-31, Cleaners and Polishes

 (2)
20-30-51, Miscellaneous MaterialsAccess

 (1)  
Location Zones 101 Control Cabin, Left 102 Control Cabin, Right

Procedure - Upper Window Removal
 S 952-005-B00
 CAUTION: IF YOU INSTALL THE WINDOWS, YOU MUST INSTALL A PROTECTIVE COVER
_______ TO THE SURFACES. DO NOT COVER THE AREAS WHICH TOUCH THE GASKETS. IF YOU DO NOT INSTALL A PROTECTIVE COVER TO THE SURFACES, YOU CAN CAUSE DAMAGE WHEN MOVE THEM.
 (1)  
Apply a protective cover until you have access to the surfaces of the window.

 S 952-004-B00

 (2)  
Attach the cover with the masking tape if it is necessary.

 S 032-006-B00

 (3)  
Remove the 4 bolts from the retention plate of the upper window on the floor of the control cabin.

 S 022-007-B00

 (4)  
Remove the upper window and the gaskets.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 112-113-B00
 WARNING:_______BE VERY CAREFUL WHEN YOU USE THE ALIPHATIC NAPHTHA. ALIPHATIC NAPHTHA IS FLAMMABLE AND CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (5)  
Clean the inner side of the viewer tube with the aliphatic naphtha or freon.

 S 112-009-B00

 (6)  
If the window is installed, clean the upper window with the castile soap.

 E. Procedure - Install the upper window.
 S 422-011-B00
 (1)  
Install the upper window with a gasket on each side.

 S 432-012-B00

 (2)
Install the retention plate on top of the window with the 4 bolts.

 S 952-013-B00

 (3)  
Remove the protective cover from the window.

 F. Procedure - Remove the lower window.
 S 952-015-B00
 CAUTION: IF YOU INSTALL THE WINDOWS, YOU MUST INSTALL A PROTECTIVE COVER
_______ TO THE SURFACES. DO NOT COVER THE AREAS WHICH TOUCH THE GASKETS. IF YOU DO NOT INSTALL A PROTECTIVE COVER TO THE SURFACES, THEN THIS CAN CAUSE DAMAGE WHEN THEY ARE HANDLED.
 (1)  
Apply a protective cover until you have access to the surface of the window.

 S 952-016-B00

 (2)  
Attach the cover with the masking tape if it is necessary.

 S 032-017-B00

 (3)  
Remove the 8 bolts on the retention ring of the lower window on the top of the nose wheel well.

 (4)  
Remove the retention ring.

 (5)  
Remove the gaskets.

 S 112-023-B00

 (6)  
If the window is installed, clean the lower window with the
 aliphatic naphtha or freon.

 S 032-018-B00
 S 032-019-B00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
SEE A
FLOOR STRUCTURE OF
THE CONTROL CABIN

VIEWER COVER
BOLT 100` HEADREMOVABLE FLOOR PANEL (PHILLIPS RECESS) (4 LOCATIONS)
HINGE PIN
UPPER WINDOW 
GASKET 
(2 LOCATIONS)  RUB STRIP 
(2 LOCATIONS) 
UPPER FLANGED PAN  HOSE 

CLAMPS
UPPER TUBE FWDLOWER TUBE
UPPER STRUCTURE OF THE NOSE WHEEL WELL
LOWER WINDOW GASKETLOWER FLANGED PAN
(2 LOCATIONS) SLOTTED PHENOLIC RING
SPACER (2 LOCATIONS)
LEFT SIDE VIEW
A
Nose Gear Downlock Viewer Installation Figure 201
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