(3) Open the access panel 161DW, 162DW.
 Subtask 38-31-76-680-050

 C. Drain and flush the waste tank 3300 MM (Ref. TASK 38-31-00-680-001). R **ON A/C 001-049, 051-099, 101-105,
 Subtask 38-31-76-865-059
 D. Open, safety and tag this(these) circuit breaker(s): -------------------------------------------------------------------------------

PANEL SERVICE IDENT. LOCATION
 -------------------------------------------------------------------------------
2001VU VACUUM TOILET SYSTEM/LAVATORY POWER 32MG A01
 2001VU VACUUM TOILET SYSTEM/LAVATORY POWER 45MG A02
 2001VU VACUUM TOILET SYSTEM/LAVATORY POWER 39MG A03
 2001VU VACUUM TOILET SYSTEM/LAVATORY POWER 34MG A04
 2001VU VACUUM TOILET SYSTEM/VACUUM SYS 35MG A06
 2001VU VACUUM TOILET SYSTEM/VACUUM GEN 33MG A08

R **ON A/C 106-149, 151-199, 201-299,
 Subtask 38-31-76-865-059-A
 D. Open, safety and tag this(these) circuit breaker(s): -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------2001VU VACUUM TOILET SYSTEM/LAVATORY POWER A 32MG A01 2001VU VACUUM TOILET SYSTEM/LAVATORY POWER 45MG A02 2001VU VACUUM TOILET SYSTEM/LAVATORY POWER D 39MG A03 2001VU VACUUM TOILET SYSTEM/LAVATORY POWER E 34MG A04 2001VU VACUUM TOILET SYSTEM/VACUUM SYS 35MG A06 2001VU VACUUM TOILET SYSTEM/VACUUM GEN 33MG A08
 **ON A/C 301-399,
 Subtask 38-31-76-865-059-B
 D. Open, safety and tag this(these) circuit breaker(s): -------------------------------------------------------------------------------PANEL SERVICE IDENT. LOCATION -------------------------------------------------------------------------------
2001VU VACUUM TOILET SYSTEM/LAVATORY POWER A 32MG A01 2001VU VACUUM TOILET SYSTEM/LAVATORY POWER L 45MG A02 2001VU VACUUM TOILET SYSTEM/LAVATORY POWER D 39MG A03 2001VU VACUUM TOILET SYSTEM/LAVATORY POWER E 34MG A04 2001VU VACUUM TOILET SYSTEM/VACUUM SYS 35MG A06 2001VU VACUUM TOILET SYSTEM/VACUUM GEN 33MG A08 **ON A/C ALL

 4. Procedure
_________
 (Ref. Fig. 401/TASK 38-31-76-991-001) Subtask 38-31-76-020-050
 A. Removal of the Check Valve 3322MM WARNING : ALWAYS WEAR RUBBER GLOVES, GOGGLES AND PROTECTIVE CLOTHES WHEN
_______ YOU DO THIS TASK.
 (1)
 Remove the pipe unions (1).

 (2)
 Remove the check valve 3322MM (2).

 (3)
 Put blanking plugs on the disconnected line ends.

 1EFF : ALL 1 38-31-76Page 404 1 1 Feb 01/05R 1 1 1CES 1

 Flush Line Check-Valve Figure 401/TASK 38-31-76-991-001
 1EFF : 1 1R 1CES  ALL  1 11 1 38-31-76 Page 405 Feb 01/05

 TASK 38-31-76-400-001

 Installation of the Flush Line Check Valves 3322MM/3323MM
 WARNING : DO NOT DO WORK ON THE TOILET WASTE SYSTEM AND THE POTABLE WATER
_______ SYSTEM AT THE SAME TIME. THIS WILL PREVENT CONTAMINATION OF THE POTABLE WATER SYSTEM. SUCH CONTAMINATION CAN BE DANGEROUS TO HEALTH.
 WARNING : ALWAYS USE RUBBER GLOVES WHEN YOU DO WORK:
_______
 -
ON THE TOILET WASTE SYSTEM, OR

 -
ON PARTS THAT HAVE CONTAMINATION FROM THE WASTE SYSTEM.
 WHEN YOU COMPLETE THE WORK PROCEDURE, CLEAN YOUR HANDS WITH SOAP AND
 WATER.
 THIS WILL PREVENT INFECTION (TOILET WASTE IS DANGEROUS FOR HEALTH).

 NOTE : The installation of the Forward check valve 3322MM is given. The
____ procedure is the same for the Aft check valve 3323MM.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-16-38-613-001 Servicing of the Toilet System 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the External Power 38-31-00-680-001 Draining of the Toilet System 52-30-00-860-002 Close the FWD or AFT Cargo-Compartment Door with the
 Yellow Electric Pump 38-31-76-991-001 Fig. 401
 1EFF : ALL 1 38-31-76Page 406 1 1 Feb 01/05R 1 1 1CES 1

 3. Job Set-up
__________

 Subtask 38-31-76-860-050
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002).

 (2)
 Make sure that the toilet system is drained (Ref. TASK 38-31-00-680-001).
　
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