Installation of the Refuel Light Assembly

TASK 28-25-48-400-001-A
Installation of the Refuel Light Assembly

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.

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.

FIN: 30QU1 ** ON A/C NOT FOR ALL
FIN: 30QU2 ** 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 4M (13 FT)
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
98D27803500001	1	LOCKING TOOL ZERO POS

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BAA9)	Non Aqueous Cleaner-General - -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
522JB, 622JB

D. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 28-00-00-910-001-A	Fuel Safety Procedures
Ready-to-Refuel Light Assembly

3. Job Set-up
Subtask 28-25-48-941-051-D ** 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) Make sure that the SAFETY BARRIER(S) are in position.
(3) Make sure that the WARNING NOTICE(S) is in position in the cockpit to tell persons not to operate the slats.
(4) Make sure that the 98D27803500001 LOCKING TOOL ZERO POS is on the flap/slat control lever.

Subtask 28-25-48-860-053-D ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 4M (13 FT) is below the applicable zone 522(622).
(2) Make sure that the applicable access panel 522JB(622JB) is removed.
(3) Make sure that the 98D27803500001 LOCKING TOOL ZERO POS is on the flap/slat control lever.

Subtask 28-25-48-865-054-A ** ON A/C NOT FOR ALL

C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B06
121VU	FUEL/FQI/CHANNEL/1 AND 2	8QT	L26
121VU	FUEL/RFL/DFL/SPLY	2QU	L24
121VU	FUEL/RFL/DFL/XFR/DEFUEL/VALVE	1QU	L23
121VU	FLIGHT CONTROLS/SLT/CTL/SYS2	7CV	R21

4. Procedure
Subtask 28-25-48-420-051-C ** ON A/C NOT FOR ALL

A. Preparation for Installation
(1) Clean the component interface and the adjacent areas with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Make sure that the parts retained from the removed component are clean and in the correct condition.
(3) Do an inspection of the component interfaces and the adjacent area.

Subtask 28-25-48-420-050-C ** ON A/C NOT FOR ALL

B. Installation of the Refuel Light
(1) Install the green lens (11) in the ready-to-refuel light (8).
(2) Install the ready-to-refuel light (8) and the clear lens (10) on the panel (2) with the screws (9).

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.

(3) Remove the CAP-BLANKING from each electrical connector and receptacle.
(4) Connect the electrical connector (4) to the receptacle.
(5) Install the clamps (5) on the electrical cable (3).
(6) Install the clamps (5) with the nuts (6) and the bolts (7) and make sure that:

The lanyard (1) is in tension.
The electrical cable (3) is not in tension.

Subtask 28-25-48-410-050-D ** ON A/C NOT FOR ALL

C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable access panel:

For 30QU1 install 522JB
For 30QU2 install 622JB.

Subtask 28-25-48-865-055-A ** ON A/C NOT FOR ALL

D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B06
121VU	FUEL/FQI/CHANNEL/1 AND 2	8QT	L26
121VU	FUEL/RFL/DFL/SPLY	2QU	L24
121VU	FUEL/RFL/DFL/XFR/DEFUEL/VALVE	1QU	L23
121VU	FLIGHT CONTROLS/SLT/CTL/SYS2	7CV	R21

Subtask 28-25-48-860-052-D ** ON A/C NOT FOR ALL

E. Preparation for Test
(1) Open the applicable access panel 522KB(622KB).
(2) Make sure that the REFUEL VALVES switches on the refuel/defuel control panel 800VU are set to NORM.
(3) Close the applicable access panel 522KB(622KB).
(4) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 28-25-48-710-050-D ** ON A/C NOT FOR ALL

F. Test
(1) Do a test of the Refuel Light Assembly:

ACTION	RESULT
1.On overhead panel 51VU: Push (in) the PWR pushbutton switch.	On overhead panel 51VU: The ON legend comes on The fuel PRESELECTED value and the ACTUAL value come on.
2.In the cockpit: Set refuel preselector 10QT until the PRESELECTED value is more than the ACTUAL value.
3.On overhead panel 51VU: Push (in) and release the CTL pushbutton switch.	On wing access panels 522JB(622JB): The ready-to-refuel lights come on (green).
	On overhead panel 51VU: The ON legend comes on.
4.On overhead panel 51VU: Push (in) and release the CTL pushbutton switch.	On overhead panel 51VU: The ON legend goes off.
	On wing access panels 522JB(622JB): The ready-to-refuel lights go off.
5.On overhead panel 51VU: Release (out) the PWR pushbutton switch.	On overhead panel 51VU: The ON legend goes off The PRESELECTED value and the ACTUAL value go off.

5. Close-up
Subtask 28-25-48-862-050-C ** ON A/C NOT FOR ALL

A. De-energize the Electrical Circuits
(1) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

Subtask 28-25-48-942-050-C ** ON A/C NOT FOR ALL

B. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the access platform(s).
(3) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the flap/slat control lever.
(4) Remove the WARNING NOTICE(S).
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

[Rev.9 from 2019] 2026.04.02 06:17:41 UTC