DOC AIRBUS | AMM A320FInstallation of the Motor Start Relay
TASK 38-31-36-400-001-A
Installation of the Motor Start Relay
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 38-31-36-860-050-A
Subtask 38-31-36-420-050-A
Subtask 38-31-36-410-050-A
[Rev.10 from 2021]
2026.04.01 01:20:24 UTC
Installation of the Motor Start Relay
FIN: 36MG
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| No specific | Torque wrench: range to between 0.30 and 0.25 m.daN (26.55 and 22.12 lbf.in )  |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 161DW, 162DW |
| 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 |
| TASK 25-55-12-000-001-A | Removal of the Aft Cargo-Compartment Partition at FR65 |
| TASK 25-55-12-400-001-A | Installation of the Aft Cargo-Compartment Partition at FR65 |
| TASK 38-31-00-710-009-A | Operational Test of the Toilet Unit |
| TASK 38-31-00-740-001-A | BITE Test of the Vacuum Toilet System |
| TASK 52-30-00-860-006-A | Open the Bulk Cargo-Compartment Door |
| TASK 52-30-00-860-008-A | Close the Bulk Cargo-Compartment Door |
Motor Start RelaySubtask 38-31-36-860-050-A
A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that bulk cargo-compartment door 827 is open (Ref. AMM TASK 52-30-00-860-006).
(3) Make sure that an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at bulk cargo-compartment door 827.
(4) Make sure that cargo-compartment light switch 18LU is set to ON.
(5) Make sure that partitions 161DW and 162DW are removed (Ref. AMM TASK 25-55-12-000-001).
Subtask 38-31-36-865-054-A (1) Make sure that the ground service network is energized (Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that bulk cargo-compartment door 827 is open (Ref. AMM TASK 52-30-00-860-006).
(3) Make sure that an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at bulk cargo-compartment door 827.
(4) Make sure that cargo-compartment light switch 18LU is set to ON.
(5) Make sure that partitions 161DW and 162DW are removed (Ref. AMM TASK 25-55-12-000-001).
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| 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 |
Subtask 38-31-36-420-050-A
A. Installation of the Motor Start Relay 36MG
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Put the motor start relay (14) and the brackets (3) in the correct position on the bracket (1). Make sure that the connector-plug and the contact-bolts L1 thru L3 and T1 thru T3 are in the same position as recorded in the removal.
(4) Install the washers (2) and (4) and the screws (5).
(5) Tighten the screws (5).
(7) Install the plates (7), the washers (8) and the nuts (9).
(8) TORQUE the nuts (9) to between 0.30 and 0.25 m.daN (26.55 and 22.12 lbf.in ).
(9) Put the cover plate (10) in position.
(10) Install the washers (11) and the screws (12).
(11) Tighten the screws (12).
(12) Remove the CAP-BLANKING from each electrical connector and receptacle.
Subtask 38-31-36-865-055-A (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Put the motor start relay (14) and the brackets (3) in the correct position on the bracket (1). Make sure that the connector-plug and the contact-bolts L1 thru L3 and T1 thru T3 are in the same position as recorded in the removal.
(4) Install the washers (2) and (4) and the screws (5).
(5) Tighten the screws (5).
CAUTION:
REFER TO THE MATCH MARKS MADE DURING THE REMOVAL WHEN YOU CONNECT THE ELECTRICAL WIRES.
INCORRECT CONNECTION OF THE WIRES WILL CAUSE DAMAGE TO EQUIPMENT.
(6) Put the cables (6) in position on the contact-bolts L1 thru L3 and T1 thru T3. (7) Install the plates (7), the washers (8) and the nuts (9).
(8) TORQUE the nuts (9) to between 0.30 and 0.25 m.daN (26.55 and 22.12 lbf.in )
. (9) Put the cover plate (10) in position.
(10) Install the washers (11) and the screws (12).
(11) Tighten the screws (12).
(12) 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.
(13) Connect the electrical connector (13). B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 38-31-36-710-050-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 |
C. Test of the Toilet System
(1) Do the procedure to get access to the MCDU SYSTEM REPORT/TEST menu page (Ref. AMM TASK 38-31-00-740-001).
(a) Make sure that there are no system faults shown on the display.
(2) Operate a toilet flush switch and make sure that the system operates correctly (Ref. AMM TASK 38-31-00-710-009).
5. Close-up(1) Do the procedure to get access to the MCDU SYSTEM REPORT/TEST menu page (Ref. AMM TASK 38-31-00-740-001).
(a) Make sure that there are no system faults shown on the display.
(2) Operate a toilet flush switch and make sure that the system operates correctly (Ref. AMM TASK 38-31-00-710-009).
Subtask 38-31-36-410-050-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install partitions 161DW and 162DW (Ref. AMM TASK 25-55-12-400-001).
(3) Set cargo-compartment light switch 18LU to OFF.
(4) Remove the access platform(s).
(5) Close bulk cargo-compartment door 827 (Ref. AMM TASK 52-30-00-860-008).
Subtask 38-31-36-862-050-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install partitions 161DW and 162DW (Ref. AMM TASK 25-55-12-400-001).
(3) Set cargo-compartment light switch 18LU to OFF.
(4) Remove the access platform(s).
(5) Close bulk cargo-compartment door 827 (Ref. AMM TASK 52-30-00-860-008).