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A
757
MAINTENANCE MANUAL
HOSE CLAMP TOILET
DRAIN VALVE TANK
(CLOSED)
B B
DRAIN LINE
LAVATORY FLOOR
CLAMP
A B
FLOOR MOUNT SHIM
0.01 INCH MAX
BOTTOM OF FLOOR MOUNT AND SHIM TOP OF BUSHING IN FLOOR
C
WASTE DRAIN ADAPTER
LAVATORY
LAVATORY FLOOR
SEALANT
SCREW (EXAMPLE) SEALANT APPLICATION (EXAMPLE) A-A
AIRPLANE FLOOR
B-B
Mid Lavatory Installation
Figure 401 (Sheet 2)
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MAINTENANCE MANUAL
S 864-022
(4) ON GUN 206; Open this circuit breaker on the miscellaneous electrical equipment panel P70, and attach a DO-NOT-CLOSE tag:
(a) 70A8, S LAV WTR HTR
S 864-012
(5) Open these circuit breakers on the miscellaneous electrical equipment panel P70, and attach DO-NOT-CLOSE tags:
(a)
70A2, LAV WTR HTR T
(b)
70A7, SHAVER LAV
S 014-007
(6)
Remove the ceiling panels from the inboard side of the lavatory.
S 864-018
(7)
Open the fill/overflow valve on the water service panel to decrease the pressure of the water system (AMM 38-10-00/201).
S 014-009
(8)
Open the drain valve which is under the sink to drain the water lines and the heater.
D. Procedure - Remove the Mid Lavatory
S 024-058
(1)
Disconnect the electrical connector at the top of the lavatory.
S 024-059
(2)
Disconnect the water supply line at the top of the lavatory.
S 014-012
(3)
Disconnect the gasper air hose at the top of the lavatory.
S 014-013
(4)
Disconnect the overhead tie rod from the lavatory.
S 014-014
(5)
Remove the lavatory door (AMM 25-41-02/401).
(6)
Remove the door header.
(7)
Remove the kick strips at the bottom of the lavatory.
(8)
Remove the light lens from above the sink.
S 014-020
S 014-015
S 024-060
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757 MAINTENANCE MANUAL
S 014-018
(9) To remove the ceiling, do the steps that follow:
(a)
Disconnect the electrical line which is above the ceiling and near the sink wall.
(b)
Remove the screws to disconnect the ceiling from the walls.
(c)
Remove the ceiling.
S 014-019
(10) To remove the sidewall, do the steps that follow:
(a)
If you remove the lavatory C or D, remove the floor edge trim at the bottom of the sidewall.
(b)
Disconnect the sidewall from the lining.
(c)
Disconnect the sidewall from the water separator box.
(d)
Disconnect the sidewall from the floor.
(e)
Disconnect the sidewall from the floor mounts.
(f)
Remove the sidewall.
S 014-021
(11)
Remove the toilet shroud and toilet tank (AMM 38-32-01/401).
S 024-061
(12)
Remove the screws to disconnect the waste drain line from the lavatory floor.
S 024-062
(13)
Lift the waste drain line and remove the clamp.
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