(3)
For the check valve of the center-tank fuel pump canisters 84QM(85QM):
(a)
Open the applicable access panel 195BB, 196BB.
(b)
Remove the applicable fuel pump (Ref. TASK 28-21-51-000-002).
1EFF : ALL 1 28-21-52Page 460 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 301-399,
Subtask 28-21-52-010-056-A
D. Get Access
(1) Put an adjustable access platform in position below the applicable fuel pump.
(2) Remove the applicable fuel pump (Ref. TASK 28-21-51-000-001). **ON A/C ALL
4. Procedure
_________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 403/TASK 28-21-52-991-004)
**ON A/C 301-399,
(Ref. Fig. 403A/TASK 28-21-52-991-004-A)
**ON A/C ALL
Subtask 28-21-52-020-057
A. Removal of the Check Valve of the Fuel Pump Canister
(1)
Put a plastic container below the applicable fuel pump canister.
(2)
Remove the four screws (2) and the four washers (3).
(3)
Remove the check valve (4) from the canister (1).
(4)
Remove and discard the O-ring (5).
1EFF : ALL 1 28-21-52Page 461 1 1 Aug 01/05 1 1 1CES 1 TASK 28-21-52-400-004
Installation of the Check Valve of the Fuel Pump Canister
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.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific safety barriers
No specific warning notices
No specific adjustable access platform 2.0 m (6 ft. 7 in.)
R No specific Torque Wrench : range 0.00 to 1.20 m.daN
R (0.00 to 9.00 lbf.ft)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 04-004 USA MIL-PRF-23827 TYPE I
SYNTH.ESTER BASED GREASE HIGH PRESSURE
(Ref. 20-31-00)
Material No. 11-026 GB DEF-STAN 68-148/1
SOLVENT GENERAL PURPOSE (Ref. 20-31-00)
Material No. 19-003 USA AMS 3819
LINT-FREE COTTON CLOTH (Ref. 20-31-00)
1EFF : ALL 1 28-21-52Page 462 1 1 May 01/05 1 1 1CES 1 C. Expendable Parts
-------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
5 O-ring 28-21-52 01 -100 5 O-ring 28-21-52 01A-100
D. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
12-11-28-650-003 Pressure Refuel with Automatic Control 28-00-00-910-001 Fuel Safety Procedures 28-21-00-710-007 Operational Test of the Main Fuel-Pump System with
Fuel Flow by Transfer 28-21-51-000-001 Removal of the Fuel Pumps 21QA(26QA) and 25QA(22QA) 28-21-51-000-002 Removal of the Fuel Pumps 37QA(38QA) 28-21-51-400-001 Installation of the Fuel Pumps 21QA(26QA) and
25QA(22QA)
28-21-51-400-002 Installation of the Fuel Pumps 37QA(38QA)
28-25-00-650-001 Pressure Defuel
28-25-00-869-001 Fuel Transfer
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
28-21-52-991-004 Fig. 403
**ON A/C 301-399,
28-21-52-991-004-A Fig. 403A
1EFF : ALL 1 28-21-52Page 463 1 1 Aug 01/05 1 1 1CES 1 **ON A/C ALL
3. Job Set-up
__________
Subtask 28-21-52-941-065
A. Safety Precautions
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
(1)
You must obey the fuel safety precautions (Ref. TASK 28-00-00-910-001) when you do work on the fuel system.
(2)
Make sure that the safety barriers are in position.
(3)
Make sure that the warning notices are in position to tell persons not to operate the fuel system.
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 28-21-52-860-053
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