Removal of the Quantity Indicator

TASK 38-13-21-000-001-A
Removal of the Quantity Indicator

NOTE: You can use two persons to do this task. One person to work on the inner side of zone 170 and the other person to work on the outer side of zone 170.

ZONE: 160
ZONE: 170
FIN: 6MA ** 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) - ADJUSTABLE
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	SCRAPER - NON METALLIC

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
160	BULK CARGO COMPARTMENT AFT BULKHEAD OF AFT CARGO COMPARTMENT TO AFT BULKHEAD OF BULK CARGO COMPARTMENT
170	AFT CAB U/FLOOR COMPT AFT BHD OF BULK
161DW, 171AL

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 25-55-12-000-001-A	Removal of the Aft Cargo-Compartment Partition at FR65
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
TASK 52-30-00-860-003-A	Open the FWD or Aft Cargo-Compartment Door with the Hand Pump
Quantity Indicator 6MA ** ON A/C NOT FOR ALL
Quantity Indicator 6MA ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 38-13-21-861-050-A ** ON A/C NOT FOR ALL

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

Subtask 38-13-21-010-050-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-001) or (Ref. AMM TASK 52-30-00-860-003).
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
(3) Set CARGO COMPT LIGHT switch 8LU to ON.
(4) Remove partition 161DW (Ref. AMM TASK 25-55-12-000-001).
(5) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
(6) Open potable-water service door 171AL.

Subtask 38-13-21-614-050-A ** ON A/C NOT FOR ALL

C. Depressurize the potable water system
(1) Drain the water from the potable water tank 3000MM (Ref. AMM TASK 38-10-00-614-002).

Subtask 38-13-21-865-053-A ** ON A/C NOT FOR ALL

D. 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-QUANT-IND	1MA	B06

4. Procedure
Subtask 38-13-21-020-051-A ** ON A/C NOT FOR ALL

A. Removal of the Quantity Indicator 6MA
(1) Disconnect the electrical connector (1) from the quantity indicator (2).
(2) Put blanking caps on the disconnected electrical connectors.
(3) Remove the sealant from from the fasteners of the quantity indicator (2) with a nonmetallic scraper (inside of zone 170).
(4) Remove the nuts (5) and the washers (6) from the screws (9).
(5) Remove the screws (9), the flange (8) and the seal (7).
(6) Hold the quantity indicator (2) from the outside of zone 170 and remove the screws (4) and (10).
(7) Remove the clamp (3) from inside zone 170 and the quantity indicator (2) from outside of zone 170.

Subtask 38-13-21-020-051-C ** ON A/C NOT FOR ALL

A. Removal of Quantity Indicator 6MA

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.

(1) Disconnect the electrical connector (1) from the quantity indicator (2).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove the sealant from the fasteners of the quantity indicator (2) with the SCRAPER - NON METALLIC.
(4) Hold the quantity indicator (2) and remove the nuts (5), the washers (4) and the screws (3).
(5) Remove the quantity indicator (2).

[Rev.10 from 2021] 2026.04.05 10:36:33 UTC