S 865-002
(2) After 5 minutes, operate the lever to open the inner door and drain the chemical precharge.
(3) S 865-003Disconnect the service cart drain line and close the waste drain cap.
(4) S 865-004Make sure the drain valve handle is open.
(5) S 865-005Open this circuit breaker on P414 Power Distribution Panel - Left and attach a DO-NOT-CLOSE tag: (a) 414E19 DRAIN VALVE LAV TANKS U-21
(6) S 865-006Close the drain valve handle.
(7) S 865-007Connect the flush line from the service cart to the rinse fitting on the service panel.
(8) S 865-008Fill the toilet tank with water until the flow automatically stops.
NOTE:____ Do not use more than 30 gallons of water in this step.
(9) S 865-009Disconnect the flush line from the rinse fitting and quickly close the cap for the rinse fitting.
NOTE:____ You must close the cap quickly to keep most of the water in the rinse line. This water is necessary to do the leak test on the cap.
S 015-010
(10)
Disengage the latches at the bottom of the toilet shroud and remove the shroud.
S 865-011
(11)
Disconnect the rinse line from the rinse line shutoff valve.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. FREIGHTERS ú
38-32-60
ú ú 01 Page 509 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 865-039
(12) If it is necessary, add water to the rinse line until you can see the water level in the rinse line.
NOTE: Use a suitable funnel and a water container to add the
____
necessary water.
S 865-012
(13)
Use a suitable container to add water to the toilet bowl.
S 865-013
(14)
Continue to add water until the level gets to 2 inches below the top of the toilet bowl.
S 865-014
(15)
Make sure the waste drain cap and the inner door (flapper valve) are open.
S 795-043
(16)
After 30 minutes, do a check for leakage from the side and bottom surfaces of the toilet tank.
NOTE: If there is leakage, stop the test and replace the toilet
____
tank.
S 795-016
(17) Do a check for leakage from the inlet of the rinse line shutoff valve.
NOTE: If there is leakage, make a note to replace the rinse line
____
shutoff valve.
S 795-017
(18) Do a check for leakage from the hoses and connections on the tank top.
NOTE: If there is leakage, tighten the connections or make a note
____ to replace the hose(s) as necessary to repair the leak(s).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. FREIGHTERS ú
38-32-60
ú ú 01 Page 510 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 795-018
(19) Do a check for leakage from the attach points for the toilet bowl, drain valve, motor-pump-assembly, vent fitting and fluid level sensor.
NOTE: If there is leakage, tighten the fasteners or make a note to
____ replace the gasket(s) as necessary to repair the leak(s).
S 795-019
(20)
If the applicable sidewall and ceiling panels are removed, do a check for leakage from the drain tube and rinse line that connects the service panel to the toilet tank.
S 795-020
(21)
Do a check for leakage at the waste drain tube outlet at the service panel.
NOTE: If there is leakage, make a note to adjust the ball valve rod
____ assembly or replace the ball valve as necessary to repair the leak.
S 795-021
(22) Do a check for leakage from the cap for the rinse fitting on the service panel.
NOTE: If there is leakage, replace the seal on the cap or replace
____
the cap as necessary to repair the leak.
S 865-022
(23)
Close the waste drain cap.
(24)
Open the drain valve handle.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址:747-400 AMM 飞机维护手册 气动系统 WATER/WASTE(58)