(h)
 Put the lanyard (3) in position on the cap (2) and secure with the cotter pin (12).

 (i)
 Install the cap (2) in the adaptor (4). Align the handle (1) with the line of flight.

 (j)
 Make sure that the FWD symbol is adjacent to the diamond mark.

 (k)
 Apply SEALANTS (Material No. 09-016) between the upper wing surface and the adaptor (4) to make a smooth continuous surface.

 1EFF : ALL 1 28-11-43Page 410 1 1 May 01/04 1 1 1CES 1

 5. Close-up
________ R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 Subtask 28-11-43-410-050
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Install the applicable access panel (Ref. TASK 28-10-00-910-002), (Ref. TASK 57-27-11-400-002):

 -
FOR 42QM, 44QM
 install 540PB

 -
FOR 43QM, 45QM
 install 640PB.

 **ON A/C 301-399,
 Subtask 28-11-43-410-050-A
 A. Close Access
 (1) Install the applicable access panel (Ref. TASK 28-10-00-910-002), (Ref. TASK 28-12-46-400-001):
 - on the left wing 540PB
 - on the right wing 640PB.

 **ON A/C ALL
 Subtask 28-11-43-650-051
 B. Fuel Configuration
 (1) Refuel, defuel or transfer fuel as necessary (Ref. TASK 12-11-28-650-003), (Ref. TASK 28-25-00-650-001) or (Ref. TASK 28-25-00-869-001).
 1EFF : ALL 1 28-11-43Page 411 1 1 Aug 01/05 1 1 1CES 1 Subtask 28-11-43-942-050

 C. Removal of Equipment
 (1)
 Remove the safety barriers.

 (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 : ALL 1 28-11-43Page 412 1 1 May 01/04 1 1 1CES 1 TANK VENTING SYSTEM - DESCRIPTION AND OPERATION

_______________________________________________
 1. General
_______
 The tank venting system keeps the air pressure in the fuel tanks near to the
 external air pressure. This function prevents a large difference between
 these pressures which could cause damage to the fuel tank/aircraft
 structure. This function is most important:
 -during the refuel or defuel operations
 -when the aircraft climbs or descends.
 The operation of the tank venting system is fully automatic. There are no
 manual controls.
 2. Component Location
__________________

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 (Ref. Fig. 001, 002)
 -------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF.
 -------------------------------------------------------------------------------15QM VALVE-FLOAT VENT, L WING TK OUTR 540 540KB 28-12-43 16QM VALVE-FLOAT VENT, L WING TK INR 540 540JB 28-12-43 17QM VALVE-FLOAT VENT, R WING TK INR 640 640KB 28-12-43 18QM VALVE-FLOAT VENT, R WING TK OUTR 640 640JB 28-12-43 46QM PROTECTOR-OVERPRESSURE, L VENT SURGE 550 550CB 28-12-41
 TK 47QM PROTECTOR-OVERPRESSURE, R VENT SURGE 650 650CB 28-12-41
 TK 48QM PROTECTOR-FUEL VENT, L NACA INTAKE 550 550AB 28-10-00 49QM PROTECTOR-FUEL VENT, R NACA INTAKE 650 650AB 28-10-00 50QM CHECK VALVE-FUEL DRAIN, L WING TK 540 540AB 28-12-44
 INR FWD 51QM CHECK VALVE-FUEL DRAIN, R WING TK 640 640AB 28-12-44 INR FWD 52QM CHECK VALVE-FUEL DRAIN, L WING TK 540 540JB 28-12-44 OUTR 53QM CHECK VALVE-FUEL DRAIN, R WING TK 640 640JB 28-12-44
 OUTR 93QM CHECK VALVE-FUEL DRAIN, CTR TK 141 147AZ 28-20-00 96QM PROTECTOR-OVERPRESSURE, CTR TK 141 147AZ 28-20-00
 102QM PROTECTOR-OVERPRESSURE, L WING TK 540 540KB 28-12-41 103QM PROTECTOR-OVERPRESSURE, R WING TK 640 640KB 28-12-41
 1EFF : ALL 1 28-12-00Page 1

1 1 Aug 01/05 1 1 1CES 1

 Vent System - Component Location
 Figure 001

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-12-00Page 2 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1

R  Vent System - Component Location 
R  Figure 001A 
R 1EFF :  301-399,  1  28-12-00 Page 3 
1  1  May 01/04
 1  1
 1CES  1

 Vent Surge Tank
 Figure 002

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-12-00Page 4 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1

 -------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL|ZONE|ACCESS | ATA | | | | DOOR | REF. -------------------------------------------------------------------------------120QM CHECK VALVE-FUEL DRAIN, L WING TK 540 540AB 28-12-44 INR REAR 121QM CHECK VALVE-FUEL DRAIN, R WING TK 640 640AB 28-12-44 INR REAR
　
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