(2)
Make sure that the drain valve assembly has no leakage.
S 213-070
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S 863-071
(3)
Close the outer cap on the drain valve assembly.
S 143-072
(4)
Clean and dry all the service panel components and the door.
S 863-073
(5)
Close the door on the service panel.
TASK 12-17-61-983-021
5. Manual Operation of the Fill Control Valve__________________________________________
A. General
(1) The Rinse Line Shutoff Valve is referred to as the shutoff valve in this procedure.
B. Access
(1) Location Zone 224 Upper Deck Crew Rest Body Sta 385 to 632
C. Procedure
S 863-035
(1) Open this circuit breaker on the P414 Power Distribution Panel -Left and attach the DO-NOT-CLOSE tag:
(a) 414C15 LAV LIGHTS GHB
S 863-036
(2)
Open this circuit breaker on the P415 Power Distribution Panel -Right and attach the DO-NOT-CLOSE tag:
(a) 415D35 UPR DK LAV FLUSH MOTOR U-21
(3)
Remove the toilet tank shroud.
(4)
Disconnect the electrical connector from the shutoff valve.
S 013-022
S 863-023
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(5) S 553-031Put a protective cap on the electrical connector and stow it safely.
(6) S 983-024Move the handle on the shutoff valve to the open position.
(7) S 863-025Remove the DO-NOT-CLOSE tag and close this circuit breaker on P414 Power Distribution Panel - Left. (a) 414C15 LAV LIGHTS GHB
(8) S 863-037Remove the DO-NOT-CLOSE tag and close this circuit breaker on P415 Power Distribution Panel - Right. (a) 415D35 UPR DK LAV FLUSH MOTOR U-21
(9) S 613-029Do the remaining steps of the "Drain and Flush the Toilet Tank" procedure.
S 613-026
(10) Do the steps of the "Add Chemical Precharge to the Toilet Tank" procedure.
S 983-030 CAUTION: A DECREASE IN CABIN PRESSURE AND/OR LEAK AT THE SERVICE PANEL
_______ CAN OCCUR IF THE VALVE IS NOT CLOSED AFTER SERVICING.
(11) Move the handle on the shutoff valve to the closed position. NOTE: Do not connect the electrical connector to the precharge
____ shutoff valve until the defect has been corrected.
S 413-028
(12) Install the toilet tank shroud.
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S 863-038
(13) Do the steps above to "Put the Airplane Back to Its Usual Condition".
TASK 12-17-61-983-039
6. Manual Operation of the Toilet Drain Valve__________________________________________
A. Standard Tools and Equipment
(1) Torque wrench with a 5/16-inch hexoganal socket
B. Access
(1) Location Zone 224 Upper Deck Crew Rest Body Sta 385 to 632
C. Procedure
S 863-040
(1) Open this circuit breaker on the P414 Power Distribution Panel -Left and attach the DO-NOT-CLOSE tag:
(a) 414E19 DRAIN VALVE LAV TANKS U-21
S 013-041
(2)
Disengage the latches at the bottom of the toilet shroud and remove the shroud.
