Deactivation of the Vacuum Generator of the Vacuum Toilet System

TASK 38-31-00-040-802-A
Deactivation of the Vacuum Generator of the Vacuum Toilet System

FIN: 37MG

1. Reason for the Job
This procedure supplies the data to deactivate the vacuum generator of the vacuum toilet system.

NOTE: This deactivation task is not related to an AFM-CDL/MMEL item.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power

3. Job Set-up
Subtask 38-31-00-861-092-A

A. Aircraft Maintenance Configuration
(1) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

4. Procedure
Subtask 38-31-00-865-142-A

A. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
2001VU	VACU TOIL SYS-VACUUM-GEN	33MG	A08
** ON A/C NOT FOR ALL
2001VU	VACU TOIL SYS-VACU-GEN	33MG	A08

Subtask 38-31-00-941-075-A

B. Safety Precautions
(1) In the cabin, on circuit breaker panel 2001VU, put a WARNING NOTICE(S) in position to tell persons not to close circuit breaker 33MG.
(2) Close and lock all lavatory doors from the outer side.
(3) Put a notice on all lavatory doors to tell persons that they only can use the toilets at an aircraft altitude of 16000 ft. and more.

NOTE: At an aircraft altitude of 16000 ft. and more, the difference pressure between the cabin and the atmosphere gives a sufficient vacuum to operate the toilet flush.

5. Close-up
Subtask 38-31-00-860-081-A

A. Aircraft Maintenance Configuration
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Make an entry in the logbook.
(3) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.04.01 01:19:40 UTC