(25)
 After 5 minutes, do a check for leakage from the waste drain cap.

 S 865-023
 S 795-024
 NOTE: If there are leaks, make a note to replace the seal on the
____ cap or replace the cap as necessary to repair the leak.
 S 865-025
 (26) Put a 40 to 50-gallon capacity container under the waste drain outlet.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. FREIGHTERS ú

 38-32-60
 ú ú 01 Page 511 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 865-026
 WARNING:_______ MAKE SURE THAT YOU WEAR CLOTHING AND EQUIPMENT THAT PROTECTS
 YOU FROM THE VALVE WASTE THAT CAN COME FROM THE SERVICE PANEL.
 A FAILURE OF THE INNER DOOR CAN CAUSE THE CONTAMINATED WATER TO
 FLOW UNEXPECTEDLY FROM THE SERVICE PANEL.

 (27)
 Carefully open the waste drain cap.

 S 795-027

 (28)
 Do a check for leakage from the inner door.

 NOTE: If there is leakage, make a note to replace the seal for the
____ inner door or replace the inner door as necessary to repair the leak.
 S 865-028
 (29) Remove the DO-NOT-CLOSE tag and close this circuit breaker on P414 Power Distribution Panel - Left:
 (a) 414E19 DRAIN VALVE LAV TANKS U-21
 S 865-029
 (30)
 Close the drain valve handle.

 S 865-030

 (31)
 Open the circuit breaker on P414 Power Distribution Panel - Left and attach a DO-NOT-CLOSE tag:

 (a) 414E19 DRAIN VALVE LAV TANKS U-21
 S 865-031
 (32)
 Connect the drain line from the service cart to the waste drain fitting on the service panel.

 S 865-032

 (33)
 Open the inner door (operate the push-to-open lever).

 S 865-033

 (34)
 Open the drain valve handle.

 S 865-034

 (35)
 Make sure there is water remaining in the toilet bowl.

 S 865-035

 (36)
 If it is necessary, use a suitable container to add water to the toilet bowl.

 S 865-036

 (37)
 Continue to add water until you can see and measure the level of water in the toilet bowl.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. FREIGHTERS ú

 38-32-60
 ú ú 01 Page 512 ú Oct 18/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 865-037
 (38)
 Measure the level of the water in the toilet bowl.

 S 795-038

 (39)
 After 5 minutes, make sure the water level did not go down.

 NOTE: If the water level went down, make a note to inspect and
____ repair the surfaces of the tank outlet and the tank drain valve. If it is necessary, replace the defective drain valve or toilet tank.
 S 865-040
 (40) Remove the DO-NOT-CLOSE tag and close this circuit breaker on P414 Power Distribution Panel - Left:
 (a)  414E19 DRAIN VALVE LAV TANKS U-21
 S 615-040
 (41)
 Do the steps in AMM 12-17-61/301 to drain the toilet tank and add the chemical precharge.

 S 415-041

 (42)
 Carefully install the toilet shroud and engage the latches.

 S 365-042

 (43)
 Do the repairs that were identified and noted in the steps above.

 TASK 38-32-60-715-045
 5.  Rinse Fill System Operational Test__________________________________
 A. General
 (1)  Make sure that you read and obey the specified instructions when you use the equipment to service the toilets (AMM 38-32-60/201).
 B. References
 (1)  
AMM 12-17-61/301 Servicing

 (2)  
FIM 38-30-00/101 Waste Disposal

 C. Standard Tools and Equipment
 (1)  Toilet Waste Service Cart
 NOTE: Use a toilet waste service cart that can do these steps:
____
 -Fill the toilet tank with a delivery pressure of not less than 30 psig or more than 125 psig.
 -Give a indication of the gallons of rinse fluid used to fill the toilet tank.
　
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