(17)
 WDM 25-41-11

 (18)
 WDM 33-26-11

 C. Access
 (1)  Location Zone
 224 Fwd Upper Deck Passenger Cabin, RH

 D. Procedure
 S 114-048
 WARNING: DO NOT GET SOLVENTS IN YOUR MOUTH, OR YOUR EYES, OR ON YOUR
_______ SKIN. DO NOT BREATHE THE FUMES FROM SOLVENTS. SOLVENTS ARE HAZARDOUS MATERIALS. SOLVENTS MAY BE FLAMMABLE OR HARMFUL TO THE ENVIRONMENT. REFER TO THE PRODUCT MATERIAL SAFEETY DATA SHEETS (MSDS) AND LOCAL REQUIREMENTS FOR PROPER HANDLING PROCEDURES.
 (1)  
Clean the tie-down fittings with solvent, Series 88 (AMM 20-30-88).

 S 644-049

 (2)  
Apply the corrosion preventive compound MIL-C-11796, to tie-down fittings and other metallic surfaces.

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747-400 MAINTENANCE MANUAL
 S 424-024
 (3)  Put the lavatory module into its position.
 S 424-089
 (4)  Install the bolts to the hard point attachments.
 S 644-050
 (5)  Apply the compound BMS 3-26 to metallic surfaces.
 S 424-088
 (6)  Connect the items that follow:
 (a)  Water supply fitting and drain fitting
 (b)  Gasper outlet duct
 (c)  Ventilation duct
 (d)  Ground jumper wire
 (e)  The electrical connector on the top of the lavatory module.
 NOTE:____ On some airplanes, the electrical connector on the
 lavatories 3U, 3UM, 4U and 18U is moved from the top of
 the lavatory to the outboard wall (shroud) of the
 lavatory.

 S 424-098
 (7) Connect the oxygen supply hose.
 NOTE: Before maintenance, examine the oxygen system safety
____ precautions and the general maintenance instructions (AMM 35-00-00/201).
 S 024-063
 (8)
Remove the cap from the toilet rinse line.

 S 424-099

 (9)
Connect the toilet rinse line.

 S 024-064

 (10)
 Remove the cap from the waste line.

 S 424-100

 (11)
 Connect the waste line of the vacuum toilet.

 S 424-101

 (12)
 Install the toilet assembly (AMM 38-32-01/401).

 S 424-102

 (13)
 Install the toilet shroud.

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747-400
MAINTENANCE MANUAL

 S 864-038
 (14) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
 (a)  
P180 DC Power Distribution Panel
 1) 180F18 LAV SMOKE DET 1
 2) 180F3 LAV SMOKE DET 2
 3) 180F19 LAV LOCK DOOR IND

 (b)  
P85 Panel
 1) LAV WASTE BLO & AFT TANK FLUSH CONTROL L
 2) LAV WASTE BLO & AFT TANK FLUSH CONTROL R
 3) LAV WASTE FWD TANK FLUSH CONTROL L
 4) LAV WASTE FWD TANK FLUSH CONTROL R

 (c)  
P414 Power Distribution Center Left
 1) 414A11 CABIN SVCE UPPER DECK
 2) 414J18 LAV LIGHT FWD
 3) 414R21 WATER SYS AIR COMPRESSOR

 (d)  
P415 Power Distribution Center Right
 1) 415H28 LAV WTR HTR UPD DK 4U

 S 864-039
 (15)
 Pressurize the water system (AMM 38-15-00/201).

 S 864-040

 (16)
 Turn the water shut off valve to "OPEN".

 S 864-041

 (17)
 Supply electrical power (AMM 24-22-00/201).

 S 714-042

 (18)
 Make sure the electrical system operates correctly.

 (a)  
Make sure the fluorescent light operates correctly.

 (b)  
Put the "RETURN TO SEAT" switch (cockpit) in the ON position.

 (c)  
Make sure that the "RETURN TO SEAT" sign comes on.
　
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