S 432-026-B00
(2)
Assemble the lower window, the gaskets, the phenolic ring, and the retention ring with one bolt through the assembly.
S 432-028-B00
(3)
Install the remaining 7 bolts.
S 392-029-B00
(4)
Seal the bolt heads with the BMS 5-95 sealant.
S 952-030-B00
(5)
Remove the protective cover from the window.
TASK 56-41-31-002-031-B00
3. Nose Gear Viewer Assembly Removal__________________________________
A. Consumable Materials
(1)
G00000 Cellulose acetate sheeting, Permacel Tape N. 76, Minnesota Mining and Manufacturing Company, Tape No. 221, or Transparent Cellophane No. 600, Spraylat SC-1058R.
(2)
G00000 Masking tape (Ref 20-30-51)
B. References
(1) 20-30-51, Miscellaneous Materials
C. Access
(1) Location Zones
101 Control Cabin, Left
102 Control Cabin. Right
303 Nose Wheel Well
D. Prepare the viewer assembly of the nose gear downlock for the removal.
S 952-033-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 surfaces of the windows.
(2)
Attach the cover with the masking tape if it is necessary.
S 032-034-B00
(3)
Remove the aft left access panel on the side structure of the nose wheel well to get access to the viewer installation.
S 952-032-B00
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
56-41-31
ALL ú ú B05 Page 205 ú Mar 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
E. AIRPLANES WITH 12 BOLTS ON THE LOWER TUBE; Procedure - Remove the viewer assembly of the nose gear downlock (Fig. 201).
S 022-035-B00
(1) Remove the lower window as follows:
(a)
Remove the 8 bolts on the retention ring of the lower window on the top of the nose wheel well.
(b)
Remove the retention ring.
(c)
Remove the gaskets.
S 032-036-B00
(2) Remove the bolts that attach the floor panel to the structure of the control cabin floor.
NOTE: These bolts are attached to the floor panel that you can
____
remove.
S 022-037-B00
(3) Hold the viewer and remove the upper window as follows:
(a)
Remove the 4 bolts that attach the retention plate of the upper window.
(b)
Remove the upper window and the gaskets.
S 032-038-B00
(4)
Remove the floor panel from the structure of the control cabin floor.
S 032-039-B00
(5)
Lift the viewer out.
S 032-040-B00
(6)
Disconnect the clamps.
S 032-042-B00
(7)
Remove the slotted phenolic rings from the lower window if the replacement is necessary.
S 032-043-B00
(8)
Remove the bolts that attach the lower flanged pan to the nose wheel well.
S 032-044-B00
(9)
Remove the bolts that attach the floor panel to the structure of the control cabin floor.
NOTE: These bolts are attached to the floor panel that you can
____
remove.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
56-41-31
ALL ú ú B05 Page 206 ú Jul 12/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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