DOC AIRBUS | AMM A320FInstallation of the Vacuum Generator
TASK 38-31-64-400-001-A
Installation of the Vacuum Generator
Self explanatory
2. Job Set-up Information
A. Consumable Materials
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 38-31-64-860-053-A
Subtask 38-31-64-420-050-B
Subtask 38-31-64-410-050-A
[Rev.10 from 2021]
2026.04.01 01:20:47 UTC
Installation of the Vacuum Generator
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.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
FIN: 37MG
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.05BAA1) | Threadlocking Adhesive-- Low strength - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 161DW, 162DW |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-15-38-613-001-A | Fill the Potable Water Tank System (Aircraft Electrical Power Available) |
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| 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 |
| TASK 25-55-12-400-001-A | Installation of the Aft Cargo-Compartment Partition at FR65 |
| TASK 38-10-00-614-001-A | Pressurization of the Potable Water System from a Ground Air Supply |
| TASK 38-31-00-790-003-A | Leak Test of the Vacuum Toilet System |
| TASK 52-30-00-860-002-A | Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-30-00-860-004-A | Close the FWD or Aft Cargo-Compartment Door with the Hand Pump |
| TASK 38-31-00-100-003-A | Cleaning of the Waste Holding Tank (for corrective action) |
| TASK 38-31-00-100-009-A | Cleaning of the Liquid Level Transmitter (LLT) Reference Line (for corrective action) |
| TASK 38-31-67-610-001-A | Inspect Water Separator and Associated Filter Element, and Clean as Necessary (for corrective action) |
Vacuum Generator 37MGSubtask 38-31-64-860-053-A
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized from the external power (Ref. AMM TASK 24-42-00-861-001).
Subtask 38-31-64-865-070-A (1) Make sure that the ground service network is energized from the external power (Ref. AMM TASK 24-42-00-861-001).
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 38-31-64-860-051-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-E | 34MG | A04 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-D | 39MG | A03 |
| ** ON A/C ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-A | 32MG | A01 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-G | 34MG | A04 |
| 2001VU | VACU TOIL SYS-LAV PWR-F | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 23MG | A05 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-M | 34MG | A04 |
C. Preparation for Installation
(1) Inspect the vacuum line between the vacuum generator and the water separator for contamination.
(2) Remove the vacuum line and clean it with warm soap water.
(3) If there is contamination, do these steps as follows:
(a) Remove and clean the LLT reference line (Ref. AMM TASK 38-31-00-100-009).
(b) Do the servicing of the water separator (Ref. AMM TASK 38-31-67-610-001).
(c) Clean the waste holding tank (Ref. AMM TASK 38-31-00-100-003).
4. Procedure(1) Inspect the vacuum line between the vacuum generator and the water separator for contamination.
(2) Remove the vacuum line and clean it with warm soap water.
(3) If there is contamination, do these steps as follows:
(a) Remove and clean the LLT reference line (Ref. AMM TASK 38-31-00-100-009).
(b) Do the servicing of the water separator (Ref. AMM TASK 38-31-67-610-001).
(c) Clean the waste holding tank (Ref. AMM TASK 38-31-00-100-003).
NOTE: It is recommended that you do these steps also if there is no contamination.
Subtask 38-31-64-420-050-B
A. Installation of the Vacuum Generator 37MG
(1) Put the vacuum generator (5) 37MG in position.
(2) Apply Threadlocking Adhesive-- Low strength - (Material No.05BAA1) to the bolts (3).
(3) Install the washers (4) and the bolts (3).
(4) Put the bonding strap (9) in position and install the bolt (8), the washer (10) and the nut (11) (Ref. AMM TASK 20-28-00-912-802).
(5) Tighten the bolts (3).
(6) Put the hose (6) in position and install the clamps (7).
(7) Put the hose (13) in position and install the clamps (12).
(8) Remove the CAP-BLANKING from each electrical connector and receptacle.
(10) Connect the electrical connectors (1) 37MG-B and (2) 37MG-A.
(11) Make sure that the connectors are correctly connected and locked in position.
Subtask 38-31-64-860-052-A (1) Put the vacuum generator (5) 37MG in position.
(2) Apply Threadlocking Adhesive-- Low strength - (Material No.05BAA1) to the bolts (3).
(3) Install the washers (4) and the bolts (3).
(4) Put the bonding strap (9) in position and install the bolt (8), the washer (10) and the nut (11) (Ref. AMM TASK 20-28-00-912-802).
(5) Tighten the bolts (3).
(6) Put the hose (6) in position and install the clamps (7).
(7) Put the hose (13) in position and install the clamps (12).
(8) Remove the CAP-BLANKING from each electrical connector and receptacle.
CAUTION:
MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.
(9) Make sure that a correct water drip-loop is made when the connectors are connected. (10) Connect the electrical connectors (1) 37MG-B and (2) 37MG-A.
(11) Make sure that the connectors are correctly connected and locked in position.
B. Preparation for Test
(2) Pressurize the potable system (Ref. AMM TASK 38-10-00-614-001).
Subtask 38-31-64-865-071-A 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.
(1) Fill the potable water system (Ref. AMM TASK 12-15-38-613-001). (2) Pressurize the potable system (Ref. AMM TASK 38-10-00-614-001).
C. Make sure that this(these) circuit breaker(s) is(are) closed:
Subtask 38-31-64-790-051-A Subtask 38-31-64-710-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACUUM-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-E | 34MG | A04 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-D | 39MG | A03 |
| ** ON A/C ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-A | 32MG | A01 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-SYS | 35MG | A06 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-VACU-GEN | 33MG | A08 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-G | 34MG | A04 |
| 2001VU | VACU TOIL SYS-LAV PWR-F | 39MG | A03 |
| 2001VU | VACU TOIL SYS-LAV PWR-D | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 45MG | A02 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-L | 23MG | A05 |
| ** ON A/C NOT FOR ALL | |||
| 2001VU | VACU TOIL SYS-LAV PWR-M | 34MG | A04 |
E. Do this test.
5. Close-up| ACTION | RESULT |
|---|---|
1.In a lavatory:
| In the vacuum toilet system:
|
Subtask 38-31-64-410-050-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install access panels 161DW 162DW (Ref. AMM TASK 25-55-12-400-001).
(3) Remove the access platform(s).
(4) Close the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-002) (Ref. AMM TASK 52-30-00-860-004).
Subtask 38-31-64-862-051-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install access panels 161DW 162DW (Ref. AMM TASK 25-55-12-400-001).
(3) Remove the access platform(s).
(4) Close the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-002) (Ref. AMM TASK 52-30-00-860-004).