S 414-100

 (7)  
Install the cabin pressurization outflow valve (AMM 21-31-11/401).

 S 414-069

 (8)  
Install the access panel on the rear bulkhead in the aft cargo compartment.

 TASK 38-32-51-704-070
 6. Leak Test
_________
 A. References
 (1)  
AMM 12-17-00/301, Toilet Servicing

 (2)  
AMM 25-41-11/401, Lavatory Sink Cabinet

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737-300/400/500MAINTENANCE MANUAL
 B. Access
 (1)  Location Zones
 113 Left Aft Lavatory
 114 Right Aft Lavatory
 118 Lavatory
 220 Aft Cargo Compartment Equipment Bay

 C. Procedure
 S 724-079
 (1)  Do this leak test on the auxiliary waste tank and the toilet waste tank that connects to it.
 (a)  
Connect a flush line to the flush port on the auxiliary waste tank on the service panel (AMM 12-17-00/301).

 (b)  
Add water until the water flows into the lavatory toilet tank.

 (c)  
Examine the flush line for leakage at the connections.

 (d)  
Make sure there is no leakage at the connection for the overflow line below the lavatory waste tank.

 (e)  
Examine all the connections to the auxiliary waste tank for leakage.

 (f)  
Use a service cart to drain the waste tanks.

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737-300/400/500MAINTENANCE MANUAL
 SERVICE PANEL DRAIN VALVE - MAINENTANCE PRACTICES
____________________________________________________
 1.  General_______
 A. This procedure has these task(s):
 (1)  
Replacement of seals on service panel drain valves with OPEN/CLOSE levers.

 (2)  
Replacement of seals on service panel drain valves with the PUSH-TO-OPEN lever.

 B. The term "seals" includes o-rings, molded seals, and packings.
 TASK 38-32-81-002-006
 2.  Drain Valve Seal Replacement - Service Panels with OPEN/CLOSE Levers____________________________________________________________________
 A. Equipment
 (1)  Protective Eye Glasses
 B. Consumable Materials
 (1)  D00504, VV-P-236 Lubricant
 C. References
 (1)  
AMM 12-17-00/301, Toilet - Servicing

 (2)  
AMM 38-32-00/501, Toilet System - Adjustment/Test

 D. Access
 (1)  
Location Zones
 203 Nose Wheel Well
 208 Forward Cargo Compartment
 218 Aft Cargo Compartment

 (2)  
Access Panels
 1104 Forward Toilet Panel
 1502 Toilet Service Door
 3105R Forward Nose Wheel Well Panel

 E. Procedure
 S 612-003
 (1)  Service the applicable toilet tank (AMM 12-17-00/301).
 NOTE: Keep the drain hose connected to the drain outlet.
____
 S 672-009
 (2)  Do these steps to drain the precharge:
 (a)  
Close the flapper valve.

 (b)  
Open the toilet tank drain valve.

 (c)  
After 5 minutes open the flapper valve to drain the precharge.

 (d)  
Disconnect the drain hose from the service panel.

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