B. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External
Power
25-45-22-000-001 Removal of the Toilet Shroud and the Seat
38-10-00-614-002 Depressurization of the Potable Water System
**ON A/C 001-003, 051-052,
38-31-56-991-001 Fig. 401
R **ON A/C 004-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
38-31-56-991-001-B Fig. 401A
**ON A/C ALL
3. Job Set-up
__________
Subtask 38-31-56-861-050
A. Energize the ground service network
(Ref. TASK 24-42-00-861-001).
**ON A/C 001-049, 051-099, 101-105,
Subtask 38-31-56-865-059
B. 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 38-31-56-865-059-A
B. 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 38-31-56-865-059-B
B. 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
Subtask 38-31-56-010-051
C. Get Access
(1)
Open the lavatory door.
(2)
Remove the toilet shroud (Ref. TASK 25-45-22-000-001).
(3)
Make sure that the water system is depressurized (Ref. TASK 38-10-00-614-002).
(4)
Close the shut off valve (5).
(5)
Put a blanking cap in the suction port of the toilet bowl.
4. Procedure
_________
**ON A/C 001-003, 051-052,
(Ref. Fig. 401/TASK 38-31-56-991-001) R **ON A/C 004-049, 053-099, 101-149, 151-199, 201-299, 301-399, 401-499,
(Ref. Fig. 401A/TASK 38-31-56-991-001-B)
**ON A/C ALL
Subtask 38-31-56-020-050
A. Removal of the Anti-Syphon Valve
(1)
Remove the coupling clamp (7).
(2)
Remove the sleeve (8).
(3)
Remove and discard the O-rings (6).
(4)
Remove the nuts (3) and the washers (2).
(5)
Remove the anti-syphon valve (4).
(6)
Remove and discard the O-ring (1).
(7)
Put blanking plugs on the disconnected line ends.
Anti-Syphon Valve
Figure 401/TASK 38-31-56-991-001
R 1EFF : 001-003, 051-052, 1 38-31-56Page 405 1 1 May 01/05 1 1 1CES 1
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