4. Procedure
_________ (Ref. Fig. 402/TASK 28-12-43-991-002) Subtask 28-12-43-020-052
A. Removal of the Vent Float-Valve 16QM(17QM)
(1)
Remove the bolt (3), the washer (4) and disconnect the end of the bonding strap (5).
(2)
Remove the bolts (6) and the nuts (2).
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Vent Float - Valve 16QM (17QM)
Figure 402/TASK 28-12-43-991-002
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(3)
Remove the vent float-valve (1) and discard the O-ring (8).
(4)
Install the blanking cap in the open end of the adaptor (7).
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Installation of the Vent Float-Valve 16QM (17QM)
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 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. 09-007 USA MIL-S-4383 BRUSHABLE FUEL RESISTANT COATING (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)
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C. Expendable Parts -------------------------------------------------------------------------------
FIG.ITEM --------- |DESIGNATION ---------------------------------------- |IPC-CSN------------------------------
8 O-ring 28-12-05 31A-220
D. Referenced Information
------------------REFERENCE -------------------------------DESIGNATION ------------------------------
-------------------------------------------------------------------------------
12-11-28-650-003 Pressure Refuel with Automatic Control 20-28-00-912-002 Electrical Bonding of Components With Conductive
Bolts and Screws in the Tanks 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 28-25-00-869-001 Fuel Transfer 57-27-11-000-002 Removal of the Access Panel (540HB, 540JB, 540KB,
540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB, 560AB, 640HB, 640JB, 640KB, ....)
57-27-11-400-002 Installation of the Access Panel (540HB, 540JB, 540KB, 540LB, 540MB, 540NB, 540PB, 540QB, 540RB, 550AB, 550BB, 550CB, 550DB, 560AB, 640HB, 640JB, ....)
28-12-43-991-002 Fig. 402
3. Job Set-up
__________
Subtask 28-12-43-941-058
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)
Make sure that the safety barriers are in position.
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B. Aircraft Maintenance Configuration
(1)
Make sure that the applicable fuel tank is defueled (Ref. TASK 28-25-00-650-001).
(2)
Make sure that the remaining fuel has been drained from the applicable fuel tank (Ref. TASK 28-25-00-650-001).
(3)
Make sure that the access platform is below the applicable zone 540(640).
(4)
Make sure that the applicable access panels are removed (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-27-11-000-002):
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