Removal of the Fuel Control-Valve Actuator

TASK 28-26-51-000-001-A
Removal of the Fuel Control-Valve Actuator

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: 11QL ** ON A/C NOT FOR ALL
FIN: 12QL ** 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 2M (6 FT) - ADJUSTABLE
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [11QL] (ACTUATOR-JET PUMP 1 CTL VALVE,CTR TK or ACTUATOR-JET PUMP 1 CTL VALVE, CTR TK)
195AB
FOR [12QL] (ACTUATOR-JET PUMP 2 CTL VALVE, CTR TK)
196AB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 28-00-00-910-001-A	Fuel Safety Procedures
Fuel Control-Valve Actuator 11QL (12QL)

3. Job Set-up
Subtask 28-26-51-941-051-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) Put the SAFETY BARRIER(S) in position.

Subtask 28-26-51-865-050-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/CTR TK/AUTO/CTL	3QL	R27
121VU	FUEL/CTR TK/L&R XFR/CTL & IND	2QL	R26
121VU	FUEL/CTR TK/L&R XFR/CTL & IND	1QL	R25

Subtask 28-26-51-010-050-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below the applicable access panel:
(a) FOR [11QL] (ACTUATOR-JET PUMP 1 CTL VALVE,CTR TK or ACTUATOR-JET PUMP 1 CTL VALVE, CTR TK)
below 195AB.
(b) FOR [12QL] (ACTUATOR-JET PUMP 2 CTL VALVE, CTR TK)
below 196AB.
(2) Open the applicable access door on the access panel:
(a) FOR [11QL] (ACTUATOR-JET PUMP 1 CTL VALVE,CTR TK or ACTUATOR-JET PUMP 1 CTL VALVE, CTR TK)
open 195BB.
(b) FOR [12QL] (ACTUATOR-JET PUMP 2 CTL VALVE, CTR TK)
open 196BB.

4. Procedure
Subtask 28-26-51-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Fuel Control-Valve Actuator 11QL (12QL)
(1) Disconnect the electrical connector (5).
(2) Put a CAP - BLANKING on the disconnected electrical connector (5).

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

(3) Cut, remove and discard the lockwire from the V-band clamp (3).
(4) Fully loosen the screw (6) to release the V-band clamp (3).
(5) Remove the actuator (4) from the drive sub-assembly (1), together with the V-band clamp (3).
(6) Remove and discard the O-ring (2).

[Rev.10 from 2021] 2026.04.02 07:03:23 UTC