Removal of the Overflow Valve

TASK 38-14-44-000-001-A
Removal of the Overflow Valve

FIN: 8MP ** ON A/C NOT FOR ALL

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

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT)
No specific	AR	CAP - BLANKING
No specific	AR	PLUG - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
132PW

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 38-10-00-614-002-A	Depressurization of the Potable Water System
TASK 52-30-00-860-001-A	Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
Overflow Valve

3. Job Set-up
Subtask 38-14-44-861-051-A ** ON A/C NOT FOR ALL

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).
(1) Put the ACCESS PLATFORM 2M (6 FT) in position.

Subtask 38-14-44-614-051-A ** ON A/C NOT FOR ALL

B. Make sure that the potable water system is depressurized (Ref. AMM TASK 38-10-00-614-002).

Subtask 38-14-44-865-050-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
2000VU	WATER SYSTEM-QANT-IND	1MA	B01
** ON A/C NOT FOR ALL
2001VU	WATER SYS-DRAIN	1MP	B05
** ON A/C NOT FOR ALL
2001VU	WATER-SYS-DRAIN	1MP	B05

Subtask 38-14-44-010-050-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Open the FWD cargo-compartment door (Ref. AMM TASK 52-30-00-860-001).
(2) Remove the access panel 132PW.

4. Procedure
Subtask 38-14-44-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Overflow Valve 8MP
(1) Open the insulation sleeve (11).
(2) Disconnect the electrical connector 8MP-A (3).
(3) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(4) Remove the cotter pin (4), the washer (5) and the pin (7).
(5) Discard the cotter pin (4).
(6) Remove the control cable (6) from the overflow valve 8MP (1).
(7) Disconnect the connections (2) from the overflow valve 8MP (1).
(8) Put the PLUG-BLANKING in each disconnected line end.
(9) Remove the bolts (10), the washers (9), the overflow valve 8MP (1) and the spacers (8).
(10) Put PLUG - BLANKING on the open ports of the overflow valve 8MP.
(11) If necessary remove the insulation sleeve (11).

[Rev.10 from 2021] 2026.04.02 06:25:43 UTC