-
a basket

 -
a collecting grid.

 The body has a mounting flange which connects the overpressure protector to the outer face of the RIB15. The burst disc is installed in the body between the collecting grid and the basket.
 If a wing tank outer cell to a wing tank inner cell overpressure occurs, the burst disc breaks to release the pressure to the wing tank inner cell. The collecting grid prevents the movement of particles into the inner cell. The burst disc pressures are given in the Table 004.
 -------------------------------------------------------------
| Burst Disc | Pressure |
 | Function | (BAR) (PSI) |
 |-----------------------------|-------------------------------|
 | Outer Cell to Inner Cell | 0.69 to 0.75 | 10.0 to 11.0 |
 -------------------------------------------------------------Wing Tank Outer Cell Burst-Disc Operation Pressure Table 004
 **ON A/C ALL
 E. Vent Protector 48QM(49QM)
 (Ref. Fig. 007)

 The primary components of the vent protector are:
 -a body
 -an ice protector
 -a flame arrestor.
 The body has a flange at both ends which connects to the NACA intake. The ice protector and the flame arrestor are located in the body on a flange. A locking ring holds the ice protector and the flame arrestor in position.

R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
 F. Vent Float Valve 15QM(18QM), 16QM(17QM)
 (Ref. Fig. 008)

 The primary components of the vent float valve are:
 -
a body

 -
a arm assembly

 -
a float

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 Vent Protector
 Figure 007
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 Vent Float Valve
 Figure 008

R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 28-12-00Page 20 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1 1EFF : ALL 1 28-12-00Page 21 1 1 May 01/04 1 1 1CES 1

 The body is open at each end. One end of the body has a flange for
 installation. A valve plate is located on the arm of the float assembly
 and the float assembly attaches to a hinge lug on the body. The float
 assembly usually hangs down which keeps the valve open. When the fuel
 lifts the float assembly the valve plate closes the valve. 
R  **ON A/C 301-399, 
R  F. Vent Float Valve 212QM(213QM) 
R  (Ref. Fig. 008A) 
R 
R  The primary components of the vent float valve are: 
R  - a body 
R  - an arm assembly 
R  - a float 
R 
R  The body is open at each end. One end of the body connects to RIB 22 by a 
R  flange. A valve plate is located on the arm of the float assembly and the 
R  float assembly attaches to a hinge lug on the body. The float assembly 
R  usually hangs down which keeps the valve open. When the fuel lifts the 
R  float assembly the valve plate closes the valve. 
R  G. Clack Valve 214QM(215QM), 216QM(217QM) 
R  (Ref. Fig. 001A) 
R 
R  The clack valve has: 
R  - a body 
R  - a valve plate and pin 
R 
R  The body has a hole through the center and is attached to the RIB22 
R  with four bolts. The pin attaches the valve plate to the body. The 
R  valve plate hangs down in the closed position. The clack valve lets 
R  fuel flow in one direction only. 
R  **ON A/C ALL
 7. Operation/Control and Indication________________________________
 The operation of the tank venting system is fully automatic. There is no
 manual control of the system and the system gives no indications.
 8. BITE Test_________
 Not applicable

R  Vent Float Valve 
R  Figure 008A
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 TANK VENTING SYSTEM - DEACTIVATION/REACTIVATION
_______________________________________________
 TASK 28-12-00-040-001
 De-activation of the Overpressure Protector 46QM(47QM)
 WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______
 START A TASK ON OR NEAR:

 -
THE FLIGHT CONTROLS
　
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