(2)
Remove the warning notice(s).
(3)
Remove the access platform(s).
(4)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
1EFF : 301-399, 1 28-26-00Page 606 1 1 May 01/04 1 1 1CES 1 JET PUMP - CENTER TANK (157QM,158QM) - REMOVAL/INSTALLATION
___________________________________________________________
TASK 28-26-41-000-001
Removal of the Center Tank Jet Pump 157QM(158QM)
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.
1. Reason for the Job__________________
Self Explanatory
2. Job Set-up Information______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific blanking cap No specific blanking caps No specific circuit breaker(s) safety clip(s) No specific safety barriers No specific warning notice No specific adjustable access platform 1.65 m (5 ft. 5 in.)
1EFF : 301-399, 1 28-26-41Page 401 1 1 May 01/04 1 1 1CES 1
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-10-00-910-001 Safety Procedures When You Do Work in a Fuel Tank 28-10-00-910-002 Access to the Fuel Tanks and the Work Areas 28-25-00-650-001 Pressure Defuel 28-25-00-650-003 To Drain Remaining Fuel from the Wing Tanks and the
Center Tank 32-12-00-010-001 Open the Main Gear Doors for Access 57-17-11-000-001 Removal of the Covers 147AZ (148AZ) 28-26-41-991-001 Fig. 401
3. Job-set up
__________ Subtask 28-26-41-941-051
A. Safety Precautions WARNING : OBEY THE SAFETY PROCEDURES WHEN YOU DO WORK IN A FUEL TANK.
_______
(1)
You must obey the fuel safety procedures (Ref. TASK 28-10-00-910-001) when you do work in a fuel tank.
(2)
Put the safety barriers in position.
(3)
Put a warning notice in position to tell persons not to operate the MLG doors.
Subtask 28-26-41-650-051
B. Fuel Configuration
(1)
Defuel the center tank (Ref. TASK 28-25-00-650-001).
(2)
Drain the remaining fuel from the center tank (Ref. TASK 28-25-00-650-003).
1EFF : 301-399, 1 28-26-41Page 402 1 1 May 01/04 1 1 1CES 1 Subtask 28-26-41-865-051
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------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 28-26-41-010-051
D. Get Access
(1)
Open the applicable MLG door (Ref. TASK 32-12-00-010-001).
(2)
Make sure that the GROUND LOCK SLEEVE is installed on the applicable MLG door actuating-cylinder.
(3)
Put the adjustable access platform in position below the applicable access panel:
-
FOR 157QM
below 147AZ
-
FOR 158QM
below 148AZ.
(4)
Remove the applicable access panel (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-17-11-000-001):
-
FOR 157QM
remove 147AZ
-
FOR 158QM
remove 148AZ.
4. Procedure
_________
(Ref. Fig. 401/TASK 28-26-41-991-001)
Subtask 28-26-41-020-050
A. Removal of the Center Tank Jet Pump 157QM (158QM)
(1)
Remove the nut (7) and the bolt (5) to disconnect the bonding lead (6).
(2)
Remove the nut (12) and the bolt (11) to disconnect the bonding lead (10).
1EFF : 301-399, 1 28-26-41Page 403 1 1 May 01/04 1 1 1CES 1
Center Tank Jet Pump 157 QM (158 QM)
Figure 401/TASK 28-26-41-991-001
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