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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 862-021-B00
 (6)  Permit 30 minutes at room temperature between each layer that you
 apply.
 S 862-056-B00
 (7)  Permit the last layer of the adhesive to dry until it is tacky.
 It should not come off when you touch it lightly.
 NOTE:____ It can be tacky but should not come off when you touch it
 lightly.  This will be 10 to 20 minutes at room temperature.

 S 862-023-B00
 (8)  
If it is necessary, lightly rub one surface of the adhesive with a clean cheesecloth soaked with methyl ethyl ketone . This will make it tacky.

 S 432-024-B00

 (9)  
Put the new rubber seal around the glass window while the adhesive is tacky.

 S 862-025-B00

 (10)
 Apply sufficient pressure to the seal to prevent air pockets.

 S 432-026-B00

 (11)
 You can install the assembly immediately.

 NOTE: Full strength of the adhesive does not occur for 24 hours or
____ longer at room temperature.
 S 032-027-B00
 (12)
 Remove the unwanted adhesive with methyl ethyl ketone.

 S 112-057-B00

 (13)
 Rub the area dry with the cheesecloth.

 S 112-058-B00

 (14)
 Prepare a clean cheesecloth soaked with the methyl ethyl ketone.

 S 112-028-B00

 (15)
 Rub the surface of the retainer ring and the top surface of the ring on the tube with the cheesecloth.

 S 162-059-B00

 (16)
 Use a wooden or a plastic scraper to remove the adhesive that is hard.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 56-41-21
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
MAIN LANDING GEAR DOWNLOCK VIEWER SEE A
TAPE HINGE
FLOOR PANEL
VIEWER COVER
PRESSURE WEB STRUCTURE FOR THE WING CENTER
RETAINER RING SECTION
BOLT AND WASHER
(8 LOCATIONS)

VIEWER WINDOW
VIEWER TUBE
RUBBER SEAL
GUIDE PIN HOLE
BOTTOM PLATE
MIRROR BRACKETS
MIRROR RETAINER
(2 LOCATIONS) SCREW AND WASHER
(8 LOCATIONS)
SCREW AND WASHER
(6 LOCATIONS)

DRAIN HOLE (2 LOCATIONS)
MIRROR
(2 LOCATIONS) SPONGE RUBBER BACKING (2 LOCATIONS)
MAIN GEAR DOWNLOCK VIEWER
A
Main Landing Gear Downlock Viewer
Figure 201

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 112-029-B00
 (17)
 Use the cheesecloth to remove the solvent before it dries.

 S 032-030-B00

 (18)
 Remove the protective cover from the viewer window.

 S 112-031-B00

 (19)
 Use the cheesecloth to clean the window with the warm water and soap.

 S 172-032-B00

 (20)
 Flush the window with the clean water.

 S 112-033-B00

 (21)
 Use a dry cheesecloth to rub the window dry.

 D.  Prepare for Installation of the Downlock Viewer for the Main Landing Gear.
 NOTE: Do these steps if you install a replacement mirror, new sponge
____
 rubber backing, or mirror retainer.

 S 102-034-B00
 (1)  
Use a clean cheesecloth to clean these surfaces:

 (a)  
The internal surfaces of the viewer tube.

 (b)  
The top surface of the bottom plate.

 (c)  
The mirror bracket surfaces.

 (2)  
Make sure the drain holes in the bottom plate are open.

 S 112-036-B00

 (3)
If you install a new sponge rubber backing, do these steps:

 S 212-035-B00
　
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