S 485-125
(2)
Select the appropriate vacuum test fixture and adapter, if necessary, to fit on the service panel that you are to test.
NOTE: The service panels on the airplane have different
____ contours. The correct test fixture and adapter must be used to get a satisfactory test.
S 645-126
(3)
Apply high vacuum grease to the seals on the test fixture and adapter.
S 485-127
(4)
Install the vacuum test fixture for the leakage test on the service panel.
(a)
Make sure that the bleed valve is closed.
(b)
Lift the vacuum test fixture to the service panel.
(c)
Hold the vacuum test fixture to the service panel, connect the shop air and start the airflow through the evacuator.
NOTE: The vacuum made in the test fixture will hold the
____
fixture in its position.
S 825-128
(5) Regulate the air flow to the vacuum test fixture to produce 3 psi on the vacuum gage.
NOTE: The relief valve will keep the vacuum to a limit of
____
approximately 4 psi.
S 825-129
(6)
Keep 3 psi of vacuum for 5 minutes.
S 215-130
(7)
Look through the viewport for leakage from the waste system
component being tested.
S 085-118
(8)
Do these steps to remove the vacuum test fixture:
(a) Hold the vacuum test fixture, stop the airflow through the evacuator, and disconnect the shop air.
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(b) Open the bleed valve until the pressure becomes equal and remove the vacuum test fixture.
TASK 38-32-00-205-099
9. Examine the Toilet Flush Components
___________________________________
A. References
(1)
AMM 12-17-00/301, Toilet Servicing
(2)
AMM 24-22-00/201, Manual Control
B. Access
(1) Location Zones
103 Forward Lavatory
113 Left Aft Lavatory
114 Right Aft Lavatory (If installed)
118 Lavatory (If installed)
C. Procedure
S 415-064
(1)
Service the toilet but fill the toilet tank with 3 to 5 gallons of water in place of the chemical precharge (AMM 12-17-00/301).
S 865-065
(2)
Supply electrical power (AMM 24-22-00/201).
S 865-066
(3)
Make sure the circuit breakers for the FLUSH MOTOR on the P18 panel are closed.
S 865-067
(4)
Operate the toilet flush handle and make sure that the flush effect is strong and without interruption.
NOTE: The flush cycle must continue 10 | 2 seconds.
____
S 215-068
(5) Examine the fluid connection around the pump for leaks during the flush cycle.
(a) Tighten any clamps that are loose and replace any hose or seal that have leaks.
S 865-069
(6) Service the toilet but ignore the steps that flush the toilet tank with 8 gallons of water (AMM 12-17-00/301).
NOTE: This gives the steps to drain the toilet tank, add the
____ chemical precharge and close the service panel.
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S 865-078
(7) Remove the electrical power if it is not necessary
(AMM 24-22-00/201).
TASK 38-32-00-705-082
10. Lavatory Check Valve Operational Test
_____________________________________
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