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R  1_  Slowly fill the sink of the FWD and AFT galley with the
R  mixture until it is full. 
R  2_  Make sure that the mixture does not fill the washbasin in the
R  FWD or AFT lavatory. 
R  3_  Let the mixture stay in the system for 1 hour.
R  4_  After 1 hour open the shutoff valve of the drain hose
R  assemblies and drain the system. 
R  5_  Flush the wastewater lines with 5 l (1.3208 USgal) of clean
R  water. 
R  (7) If necessary, remove the drain hose assemblies from the drain masts. 
R  (8) In the Lavatories 
R  (9) Make sure that the shutoff valve on the drain hose assemblies is 
R  closed. 
R  (a) Slowly fill the washbasin of the FWD and AFT lavatories with the 
R  mixture until it is full. 
R  (b) Let the mixture stay in the system for 1 hour. 

R 1EFF : 051-051, 1 38-32-00Page 706 1 1 May 01/05 1 1 1CES 1

R R  (c) After 1 hour open the shutoff valves of the drain hose assemblies and drain the system. 
R  (10) Flush the wastewater lines with 5 l (1.3208 USgal) of clean water. 
R  (11) Remove the drain hose assemblies from the drain masts. 
R R  (12) Remove the blanking plugs from the drain lines of the cargo loading system. 
R  (a) Connect the drain hose to the drain mast 4DU and 24DU. 
R  **ON A/C ALL
 5. Close-up________
 Subtask 38-32-00-410-053
 A. Make sure that the work area is clean and clear of tool(s) and other items.
 Subtask 38-32-00-862-052
 B. De-energize the aircraft electrical circuits (Ref. TASK 24-42-00-862-001).
 Subtask 38-32-00-942-050
 C. Put the system back to the serviceable condition.

 

 TASK 38-32-00-100-001- 01 Cleaning of the Waste Water Drain Lines with Compressed Air
 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific  1 AIR COMPRESSED SOURCE 0.3 TO 0.7 BAR (5 TO 10 PSI) -REGULATED, FILTERED, DRY No specific 1 CONTAINER 1 L (1/4 USGAL)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from
 the External Power 38-32-00-100-001 Cleaning of the Waste Water Drain Lines AMM 38320010000300 (for corrective action) 38-32-00-991-003 Fig. 702
 3. Job Set-up
__________ Subtask 38-32-00-861-055
 A. Energize the ground service network
 (Ref. TASK 24-42-00-861-001).

 1EFF : ALL 1 38-32-00Page 708 1 1 May 01/05R 1 1 1CES 1

 Subtask 38-32-00-860-055
 B. Aircraft Maintenance Configuration
 (1)
 Put a AIR COMPRESSED SOURCE 0.3 TO 0.7 BAR (5 TO 10 PSI) - REGULATED, FILTERED, DRY in position at the drain valve.

 (2)
 Install an applicable adaptor into the drain mast.

 (3) Attached the air source to the adaptor. Subtask 38-32-00-010-055
 C. Get access to the blocked sink.
 (Ref. Fig. 702/TASK 38-32-00-991-003)

 (1)
 Put a CONTAINER 1 L (1/4 USGAL) under the drain valve.

 (2)
 Loosen the clamps (2) at the inlet hose (1) and outlet hose (4) of the valve (3).

 (3)
 Examine the drain valve for blockage, if the valve is blocked

 (a) If the valve is blocked, clean the valve (Ref. AMM 38320010000300).
 Subtask 38-32-00-941-053
 D. Put the warning notices in position in the galley to tell persons not to use the galley.
 4. Procedure
_________
 (Ref. Fig. 702/TASK 38-32-00-991-003) Subtask 38-32-00-100-051
 A. Clean the Waste Drain Lines
 (1)
 Put a cloth around the drain line to protect the area from unwanted matter that can come out of the line.

 (2)
 Operate the air compressed source and blow the lines through with 0.4 Bar (6.0psi) from the drain mast in the direction of the drain valve.

 (3)
 Put a cloth at the sink to protect the area from unwanted matter that can come out of the sink.
　
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