Removal of the Refuel Valve

TASK 28-25-51-000-004-A
Removal of the Refuel Valve

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

ZONE: 147
ZONE: 148
ZONE: 734
FIN: 41QU ** 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	AR	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	BOLT - AN3
No specific	AR	BOLT - DIA 10-32UNF X 1.25 IN. LENGTH
No specific	AR	BOLT - NAS 1801
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
147	MAIN GEAR WELL AND HYDRAULIC COMPARTMENT
148	MAIN GEAR WELL AND HYDRAULIC COMPARTMENT
734	MAIN DOOR
147AZ
734

C. Referenced Information

REFERENCE	DESIGNATION
TASK 28-00-00-910-001-A	Fuel Safety Procedures
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 57-17-11-000-001-B	Removal of Access Cover 148AZ or/and the ACT-Equipment Support Door
TASK 57-17-11-000-003-A	Removal of the Protective Cover of the ACT-Equipment Support Door
Refuel Valve 41QU ** ON A/C NOT FOR ALL
Refuel Valve 41QU ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 28-25-51-941-062-A ** ON A/C NOT FOR ALL

A. Safety Precautions

WARNING: OBEY THE FUEL SAFETY PROCEDURES.

(1) You must obey the fuel safety procedures when you do work on the fuel system (Ref. AMM TASK 28-00-00-910-001).
(2) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
(3) Put a WARNING NOTICE(S) in position to tell persons not to operate the MLG doors.

Subtask 28-25-51-865-059-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
121VU	FUEL/RFL/DFL/SPLY	2QU	L24
121VU	FUEL/RFL/DFL/XFR/DEFUEL/VALVE	1QU	L23
** ON A/C NOT FOR ALL
121VU	ACT1/REFUEL & SPLY	33QU	L29
121VU	ACT XFR VALVE MAN CTL	30QH	N29
121VU	ACT1/CTL & SPLY	9QH	P29
121VU	ACT PUMP SUPPLY	25QH	Q29
** ON A/C NOT FOR ALL
121VU	FUEL/ACT XFR VLV/MOT2	66QH	J18
121VU	FUEL/ACT XFR VLV/MOT1	65QH	J17
121VU	FUEL/RFL/DFL/SPLY	2QU	L23
121VU	FUEL/RFL/DFL/XFR/DEFUEL/VALVE	1QU	L22
121VU	FUEL/ACT/FUEL PUMP/SPLY	25QH	Q29
** ON A/C NOT FOR ALL
121VU	ACT2/REFUEL & SPLY	34QU	L28
121VU	ACT2/CTL & SPLY	10QH	P28

Subtask 28-25-51-010-056-A ** ON A/C NOT FOR ALL

C. Get Access

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR DOORS ARE CLEAR.

(1) Open the left Main Landing Gear (MLG) door 734 (Ref. AMM TASK 32-12-00-010-001).
(2) Make sure that the 460005835 SLEEVE - GROUND LOCK is installed on the left MLG-door actuating-cylinder.
(3) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at zone 148.
(4) If installed, remove the protective cover for the ACT-equipment support door (Ref. AMM TASK 57-17-11-000-003).

Subtask 28-25-51-010-056-C ** ON A/C NOT FOR ALL

C. Get Access

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR DOORS ARE CLEAR.

(1) Open the left Main Landing Gear (MLG) door 734 (Ref. AMM TASK 32-12-00-010-001).
(2) Make sure that the 460005835 SLEEVE - GROUND LOCK is installed on the left MLG-door actuating-cylinder.
(3) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at zone 147.
(4) Remove the access cover 147AZ (Ref. AMM TASK 57-17-11-000-001).

4. Procedure
Subtask 28-25-51-020-055-A ** ON A/C NOT FOR ALL

A. Removal of the Refuel Valve 41QU

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 (6).
(2) Put a CAP - BLANKING on the disconnected electrical connector.
(3) Remove the nut (4), washer (5), screw (7) and washer (8).
(4) Disconnect the bonding strap (1).
(5) Remove the nuts (3).
(6) Put a suitable BOLT - AN3 or BOLT - NAS 1801 or BOLT - DIA 10-32UNF X 1.25 IN. LENGTH in each extractor bolt hole in the valve (2).
(7) Tighten each bolt in sequence to loosen the refuel valve (2) from the canister.
(8) Carefully remove the refuel valve (2).
(9) Remove the extractor bolts.
(10) Remove and discard the O-ring (9).

Subtask 28-25-51-020-055-C ** ON A/C NOT FOR ALL

A. Removal of Refuel Valve 41QU

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 (5).
(2) Put a CAP - BLANKING on the disconnected electrical connector.
(3) Remove the nut (4), the screw (6) and the washer (7).
(4) Disconnect the bonding lead (1).
(5) Remove the nuts (3).
(6) Put an applicable BOLT - AN3 or BOLT - NAS 1801 or BOLT - DIA 10-32UNF X 1.25 IN. LENGTH in each extractor bolt hole in the valve (2).
(7) Tighten each bolt in sequence to loosen the refuel valve (2) from the canister.
(8) Carefully remove the refuel valve (2).
(9) Remove the extractor bolts.

[Rev.10 from 2021] 2026.04.02 06:17:42 UTC