Subtask 28-21-15-010-050-A
C. Get Access
(1) Put the access platform in the applicable MLG bay.
**ON A/C ALL
4. Procedure
_________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 401/TASK 28-21-15-991-001)
**ON A/C 301-399,
(Ref. Fig. 401A/TASK 28-21-15-991-001-A)
**ON A/C ALL
CAUTION : BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING
_______
EDGE:
-
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
-
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
-MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
1EFF : ALL 1 28-21-15Page 404 1 1 Aug 01/05 1 1 1CES 1
Fuel-Pump Pressure Switch
Figure 401/TASK 28-21-15-991-001
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-21-15Page 405 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1
R Fuel-Pump Pressure Switch
R Figure 401A/TASK 28-21-15-991-001-A
R 1EFF : 301-399, 1 28-21-15 Page 406
1 1 May 01/04
1 1
1CES 1
Subtask 28-21-15-020-050
A. Removal of the Fuel-Pump Pressure-Switch.
(1)
Disconnect the electrical connector (5). Put blanking caps on the disconnected electrical connectors.
(2)
Put a container below the pressure switch (2).
(3)
Remove and discard the lockwire from the sealing valve and the plug (3).
(4)
Hold the pressure switch (2) and loosen the plug (3). Remove the pressure switch (2) and the plug (3) together.
(5)
Remove the plug (3) from the pressure switch (2) and remove and discard the O-rings (1) and (4).
(6)
Install blanking caps on the sealing valve and the pressure switch (2).
1EFF : ALL 1 28-21-15Page 407 1 1 May 01/04R 1 1 1CES 1
TASK 28-21-15-400-001
Installation of the Fuel-Pump Pressure-Switch.
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.
CAUTION : BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:
_______
-
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
-
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
-MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
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 container 1 l (0.2641 USgal)
No specific access platform 2.5 m (8 ft. 2 in.)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 01-001 USA ASTM-D-1655-93 (JET A-1) FUEL, TURBO (Ref. 20-31-00) Material No. 04-012 USA VV-P-236 PURE MINERALVASELINE OR PETRO- LATUM (Ref. 20-31-00)
Material No. 11-004 USA MIL-T-81533 1.1.1TRICHLOROETHANE (METHYL CHLOROFORM) (Ref. 20-31-00)
Material No. 19-003 USA AMS 3819 LINT-FREE COTTON CLOTH (Ref. 20-31-00)
1EFF : ALL 1 28-21-15Page 408 1 1 May 01/04R 1 1 1CES 1
-------------------------------------------------------------------------------
REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 19-010 USA AMS 5687
LOCKWIRE STAINLESS STEEL ANNEALED 0.8MM DIA
(Ref. 20-31-00)
C. Expendable Parts
-------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
FOR FIN 23QA, 27QA 1 O-ring 28-21-05 42A-020 1 O-ring 28-21-05 42D-020 4 O-ring 28-21-05 42A-050 4 O-ring 28-21-05 42D-050 FOR FIN 24QA, 28QA 1 O-ring 28-21-05 43 -020 1 O-ring 28-21-05 43B-020 4 O-ring 28-21-05 43 -050 4 O-ring 28-21-05 43B-050 FOR FIN 39QA, 40QA 1 O-ring 28-21-03 01 -040 4 O-ring 28-21-03 01 -040
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