(e)
Install the toilet tank drain valve (AMM 38-32-31).
(f)
Fill the forward toilet system with water until the lavatory bowl is half full with water.
(g)
At the forward toilet service panel, examine the inside of the toilet drain tube to ensure no water flows from the toilet tank.
(20)
On the forward toilet service panel, perform the following applicable steps: a) Install the drain plug on the service panel without levers for a flapper valve. b) Set the CLOSED lever so the flapper valve is closed on service panels with
OPEN/CLOSED levers
(21)
Close the drain cap, on the forward toilet service panel.
(22)
Pull and lock the tank drain valve handle on the forward toilet service panel (FWD TOILET).
(23)
In the electronic equipment compartment, perform a full visual inspection of the following components:
(a)
The 4-inch toilet drain tube at these connections:
1) The connection under the toilet tank.
2) The connections at the waste drain valve.
3) The connection at the forward toilet service panel.
(b)
For airplanes with modular toilets installed: 1) The ground flush hose connection at the forward toilet service panel.
(c)
The toilet drain valve control cable.
(24)
If you find a leak on the forward toilet drain tube, perform the following steps:
(a)
If the leak is from a coupling, replace packing(s) as necessary and tighten the clamps to stop the leak.
(b)
If the leak is from a damaged drain tube, replace the drain tube.
(c)
If the leak is from an unserviceable drain valve, replace the valve (AMM 38-32-31).
(25)
If you find a leak on the forward toilet ground flush hose, tighten the couplings or replace the ground flush hose (AMM 38-32-51).
(26)
If you find a damaged drain valve control cable, perform the following steps:
(a)
If the control cable is unserviceable, replace the cable (AMM 38-32-41).
(b)
If you find the control cable is installed incorrectly, perform the correct installation and adjustment procedure (AMM 38-32-41).
(27)
At the forward toilet service panel, perform a full visual inspection of the drain valve assembly.
(a) If you find a leak on the drain valve assembly, perform the appropriate maintenance procedure (AMM 38-32-31).
(28)
Remove the DO-NOT-CLOSE tag and close this circuit breaker on the load control center panel, P18:
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(a) Applicable lavatory flush motor circuit breaker.
G. Return the airplane to its usual condition
(1)
Perform the forward toilet service procedure (AMM 12-17-0).
(2)
Remove all tools and equipment from the work area.
(3)
Close the forward toilet service panel.
(4)
Close the E/E compartment door (AMM 52-48-41).
3. Toilet System Inspection (Aft Toilet)
A. General
(1)
This inspection procedure is to be performed when a check on the aft toilet waste system is necessary.
(2)
The inspection procedure shows a toilet system with one aft lavatory installed.
(3)
For operators with more than one lavatory installed in the aft toilet system, the inspection procedure is the same and is to be repeated on each additional lavatory installation.
B. References
(1)
AMM 12-17-0, Toilet Servicing
(2)
AMM 38-32-0, Toilet System
(3)
AMM 38-32-21, Toilet Flush Motor
(4)
AMM 38-32-22, Toilet Filter
(5)
AMM 38-32-31, Toilet Drain Valve
(6)
AMM 38-32-41, Toilet Drain Valve Control Cable
(7)
AMM 38-32-42, Toilet Ground Flush Line
(8)
AMM 38-32-51, Toilet Waste Tank
(9)
AMM 38-32-81, Service Panel Drain Valve
(10)
AMM 38-32-82, Waste Tank Drain Duct Nipple
(11)
AMM 51-31-0, Seals and Sealing
(12)
AMM 52-13-0, Aft Cargo Compartment Door
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C. Equipment
(1) Maintenance Stand
D. Consumable Materials
(1)
G00000 Gloves - Disposable
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