25-41-11
LAVATORIES ú
ú 01 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 403Nov 15/91
A 737-300/400/500MAINTENANCE MANUAL
LAVATORY SINK CABINET
SEE E
TOILET BACK
SHROUD
INBD FWD
TOILET TANK
SHROUD
AFT
PARTITION
FLOOR PAN SEAL SUPPORT CHANNEL
NO. 4 LAVATORY
SINK CABINET DOOR
AISLE PARTITION SUPPORT ANGLE OF THE TOILET BACK SHROUD
SUPPORT ANGLE OF THE TOILET TANK SHROUD
B
SEAL SUPPORT CHANNEL
A
MOUNTING
B
BRACKET
A
WATER SYSTEM CONNECTIONS SEE B
LAVATORY SINK CABINET E
Lavatory Sink Cabinet Installation
Figure 401 (Sheet 3)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ALL EXCEPT AIRPLANES WITH MODULAR ú
25-41-11
LAVATORIES ú
ú 04 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 404Nov 15/91
A 737-300/400/500MAINTENANCE MANUAL
Lavatory Sink Cabinet Installation
Figure 401 (Sheet 4)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ALL EXCEPT AIRPLANES WITH MODULAR ú
25-41-11
LAVATORIES ú
ú 04 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 405Nov 15/91
A
737-300/400/500MAINTENANCE MANUAL
S 024-011
(9)
Remove the fasteners that attach the sink cabinet to the lavatory wall and the floor.
S 024-012
(10)
Lift the sink cabinet and remove from the lavatory.
S 034-013
(11)
If you will replace the sink cabinet, remove the support angles of the toilet shroud and the other equipment as it is necessary.
NOTE: Keep the support angles and the other equipment for
____
subsequent installation.
TASK 25-41-11-404-003
3. Lavatory Sink Cabinet - Installation (Fig. 401)
____________________________________
A. Consumable Materials
(1)
A00679 Sealant, BMS 5-95, Class B
(2)
C00833 Sealant, BMS 5-108, Type 1, Class B-2
(3)
B00316 Naphtha, Aliphatic TT-N-95, Type II
(4)
G01425 Tape, Double-back - Scotch No. 971,
Permacel P50L, or Permacel P55
B. References
(1) 12-14-00/301, Potable Water System
C. Access
(1) Location Zone
100 Upper Half of Fuselage
D. Procedure
S 394-014
(1) Prepare the floor or drip pan area below the sink cabinet for the BMS 5-95, Class B sealant as follows:
(a)
Clean the area with solvent.
(b)
Use sandpaper on all enamel that you will seal.
S 394-015
(2) Apply the BMS 5-95, Class B sealant:
(a) Apply a bead of the sealant to all cracks, joints and internal corners.
S 394-031
(3)
Apply a layer of BMS 5-108, Type 1, Class B-2 sealant to the floor to a thickness of 0.020 to 0.030 inch for corrosion protection.
(4)
If removed, install the support angles of the toilet shroud.
S 424-016
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ALL EXCEPT AIRPLANES WITH MODULAR ú
25-41-11
LAVATORIES ú
ú 04 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 406Mar 12/00
A
737-300/400/500MAINTENANCE MANUAL
(5) S 434-017Put the sink cabinet in its position.
(6) S 424-018Install the fasteners to connect the cabinet to the lavatory wall and the floor.
(7) S 394-019Apply the BMS 5-95, Class B sealant between the cabinet base fasteners and the cabinet base.
(8) S 434-020Connect the water system.
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