Removal of the Wastewater Drain Lines

TASK 38-30-00-010-003-A
Removal of the Wastewater Drain Lines

1. Reason for the Job
Self Explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	PLUG - BLANKING

B. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 30-71-53-000-001-A	Removal of the Waste-Water De-icing Heater Elements
Connections or the Wastewater Drain Lines
Attachment of the Wastewater Drain lines

3. Job Set-up
Subtask 38-30-00-861-054-A

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

Subtask 38-30-00-010-058-A

B. Get Access
(1) Put the access platform in position at the relevant access door(s).
(2) Open the relevant access door(s).
(3) In the lavatory(ies) close the shutoff valve(s) of the potable water system.
(4) Remove the relevant access panel(s) to get access to the wastewater drain lines.
(5) Remove the heater elements from the drain lines (Ref. AMM TASK 30-71-53-000-001).

Subtask 38-30-00-941-063-A

C. Put the warning notice in position to tell persons not to use the wash basin(s).

4. Procedure
Subtask 38-30-00-020-059-A

A. Removal of the Wastewater Drain Lines
(1) Example A.
(a) Remove the insulation (1).
(2) Example B.
(a) Remove the clamps (3) and the sleeves (4).
(3) Example C.
(a) Disconnect the connections (5) and remove the T-connector (6).
(4) Example D.
(a) Disconnect the connection (5).
(5) Example E.
(a) Disconnect the connections (5).
(b) Remove the lock nut (10), the washer (9) and the T-connector (8).
(6) Example K.
(a) Remove the nuts (15), the screws (19), the washers (18) and the bonding straps (25).
(b) Remove the clamps (24).
(7) Example F.
(a) Remove the nuts (15), the screws (19) and the washers (18).
(b) Remove the clamps (17).
(8) Example G.
(a) Remove the nuts (15), the spacers (20), the screws (19) and the washers (18).
(b) Remove the clamps (17).
(9) Example H.
(a) Remove the nuts (15), the washers (18), the screws (19) and the bonding straps (20).
(b) Remove the clamps (21).
(c) Remove the spacers (22).
(10) Example J.
(a) Remove the nuts (15), the washers (18) and the screws (19).
(b) Remove the clamps (23) and the spacers (22).
(11) Examples A, B, C, E, H, J and K.
(a) Remove the wastewater drain lines (2)
(b) Put the PLUG-BLANKING in each disconnected line end.
(12) Example D.
(a) Remove the wastewater drain line (7).
(b) Put the PLUG-BLANKING in each disconnected line end.
(13) Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.04.02 06:25:47 UTC