Removal of the Fuel Quantity Preselector

TASK 28-42-21-000-002-A
Removal of the Fuel Quantity Preselector

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.

FIN: 10QT ** 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	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Referenced Information

REFERENCE	DESIGNATION
Fuel Quantity Preselector 10QT

3. Job Set-up
Subtask 28-42-21-865-055-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FUEL/FQI/CHAN/1	1QT	A13
121VU	FUEL/FQI/CHANNEL/1 AND 2	8QT	L26
121VU	FUEL/FQI/CHAN/2	2QT	M27

4. Procedure
Subtask 28-42-21-020-054-B ** ON A/C NOT FOR ALL

A. Removal of the Fuel Quantity Preselector 10QT
(1) Release the quick-release fasteners (3).

CAUTION: DO NOT PULL THE PRESELECTOR TOO FAR AND DO NOT LET IT HANG ON THE ELECTRICAL CABLE. THIS WILL PREVENT DAMAGE TO THE ELECTRICAL CABLE.

(2) Pull the preselector (2) from the mounting frame.
(3) Disconnect the electrical connector (1) from the preselector (2).
(4) Remove the preselector (2).
(5) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.

[Rev.9 from 2019] 2026.04.02 06:18:08 UTC