Removal of the Refuel Valve Canister
TASK 28-25-52-000-001-A
Removal of the Refuel Valve Canister
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 28-25-52-941-051-A
Subtask 28-25-52-020-054-A
[Rev.10 from 2021]
2026.04.02 06:17:42 UTC
Removal of the Refuel Valve Canister
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.
WARNING:
MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 4M (13 FT) |
| No specific | AR | PLUG - BLANKING |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [19QM] (CANISTER-REFUEL VALVE, L WING TK) | |
| 540JB | |
| FOR [20QM] (CANISTER-REFUEL VALVE, R WING TK) | |
| 640JB | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 28-10-00-910-001-A | Safety Procedures When You Do Work in a Fuel Tank |
| TASK 28-10-00-910-002-A | Access to the Fuel Tanks and the Work Areas |
| TASK 28-25-00-650-001-A | Pressure Defuel |
| TASK 28-25-00-650-003-A | To Drain Remaining Fuel from the Wing Tanks and the Center Tank |
| TASK 28-25-00-650-003-A-01 | To Drain Remaining Fuel from the Wing Tanks and the Center Tank |
| TASK 28-25-51-000-001-A | Removal of the Refuel Valve |
| TASK 57-27-11-000-002-A | Removal of the Access Panel |
Subtask 28-25-52-941-051-A
A. Safety Precautions
(2) Put the SAFETY BARRIER(S) in position.
Subtask 28-25-52-650-050-A WARNING:
BEFORE YOU DO WORK IN OR NEAR A FUEL TANK, MAKE SURE THAT YOU OBEY ALL THE SAFETY PROCEDURES. THIS WILL PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE AIRCRAFT.
(1) You must obey the fuel safety procedures (Ref. AMM TASK 28-10-00-910-001) when you do work in a fuel tank. (2) Put the SAFETY BARRIER(S) in position.
B. Fuel Configuration
(1) Defuel the applicable fuel tank (Ref. AMM TASK 28-25-00-650-001).
(2) Drain the remaining fuel from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
Subtask 28-25-52-865-050-A (1) Defuel the applicable fuel tank (Ref. AMM TASK 28-25-00-650-001).
(2) Drain the remaining fuel from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
C. Open, safety and tag this(these) circuit breaker(s):
Subtask 28-25-52-010-050-A | 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 | FUEL/RFL/DFL/SPLY | 2QU | L23 |
| 121VU | FUEL/RFL/DFL/XFR/DEFUEL/VALVE | 1QU | L22 |
D. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT) in position below the applicable access panel 540JB (640JB).
(2) Remove the applicable wing access panel (Ref. AMM TASK 28-10-00-910-002), (Ref. AMM TASK 57-27-11-000-002):
(a) FOR [19QM] (CANISTER-REFUEL VALVE, L WING TK)
remove 540JB
(b) FOR [20QM] (CANISTER-REFUEL VALVE, R WING TK)
remove 640JB.
(3) Remove the refuel valve (Ref. AMM TASK 28-25-51-000-001).
4. Procedure(1) Put the ACCESS PLATFORM 4M (13 FT) in position below the applicable access panel 540JB (640JB).
(2) Remove the applicable wing access panel (Ref. AMM TASK 28-10-00-910-002), (Ref. AMM TASK 57-27-11-000-002):
(a) FOR [19QM] (CANISTER-REFUEL VALVE, L WING TK)
remove 540JB
(b) FOR [20QM] (CANISTER-REFUEL VALVE, R WING TK)
remove 640JB.
(3) Remove the refuel valve (Ref. AMM TASK 28-25-51-000-001).
Subtask 28-25-52-020-054-A
A. Removal of the Refuel Valve Canister 19QM (20QM)
(1) Remove the nut (4), the screw (5) and disconnect the bonding straps (1) and (6).
(2) Remove the bolts (2) and disconnect the adapter (14).
(3) Remove and discard the O-ring (3).
(4) Remove the bolts (9) and disconnect the elbow (8).
(5) Remove and discard the O-ring (7).
(6) Put the PLUG-BLANKING in each disconnected line end.
(7) Remove the screws (12) and the spacer (13).
(8) Remove the refuel valve canister (10).
(9) Remove and discard the O-ring (11).
(1) Remove the nut (4), the screw (5) and disconnect the bonding straps (1) and (6).
(2) Remove the bolts (2) and disconnect the adapter (14).
(3) Remove and discard the O-ring (3).
(4) Remove the bolts (9) and disconnect the elbow (8).
(5) Remove and discard the O-ring (7).
(6) Put the PLUG-BLANKING in each disconnected line end.
(7) Remove the screws (12) and the spacer (13).
(8) Remove the refuel valve canister (10).
(9) Remove and discard the O-ring (11).
Refuel Valve Canister 19QM(20QM)