S 424-051

 (5)  
Tighten the connection between the pressure transducer and the cylinder coupling to a torque of 170 pound-inches.

 TASK 35-12-11-404-052
 7.  Install the Cylinder Coupling, Pressure Transducer, and Pressure Reducing_________________________________________________________________________ Regulator as an Assembly_________________________
 A.  General
 (1)  Read the safety precautions and the general maintenance instructions of the oxygen system in 35-00-00/201, Oxygen.
 B.  Consumable Materials
 (1)  G00091 Oxygen system leak detection compound
 C.  References
 (1)  AMM 24-22-00/201, Electrical Power
 D.  Access
 (1)  Location Zone
 113 Forward Cargo Compartment, Right

 E.  Install the Assembly
 S 424-053
 (1)  
Set the assembly on the oxygen cylinder.

 (2)  
Install the assembly on the oxygen cylinder.

 S 434-055

 (3)  
Tighten the nut of the cylinder coupling to a torque of 650-700 pound-inches.

 S 424-054
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 S 434-056
 (4)  
Connect the supply line to the elbow of the pressure reducing regulator.

 S 434-058

 (5)  
Connect the electrical connector to the pressure transducer.

 S 444-059
 WARNING: OPEN VALVE SLOWLY OR UNWANTED TEMPERATURES CAN OCCUR.
_______
 (6)  Slowly open the shutoff valve of the crew oxygen cylinder.
 F. Do a Check on the Electrical Connection
 S 864-075
 (1)  
Supply electrical power (Ref. 24-22-00, MP).

 S 864-076

 (2)  
Remove the DO-NOT-CLOSE tags and close this circuit breaker:

 (a)  P18 Circuit Breaker Panel
 1) OXYGEN SYSTEM IND.

 S 844-077
 (3)  Make sure that the pressure indicator on the aft overhead panel shows pressure.
 G. Do a Check for Leakage
 S 364-064
 (1)  
Use the leak detection compound to do a check on all the connections that were disconnected.

 S 364-079

 (2)  
If there is leakage at the connections that were disconnected, continue as follows:

 (a)  
Bleed crew oxygen system pressure per paragraph 2.E. (2).

 (b)  
Tighten the connection with the leak to a torque of 220 pound-inches

 (c)  
Slowly open the shutoff valve.

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737-300/400/500MAINTENANCE MANUAL
 (d)  
Examine the connections for leaks with the leak detection compound for the oxygen system.

 (e)  
Remove the leak detection compound with a clean cloth immediately after you examine the oxygen system.

 S 844-080
 (3)  Put the airplane back to its initial condition.
 (a)  Remove electrical power if it is no longer necessary (Ref 24-22-00/201).
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737-300/400/500MAINTENANCE MANUAL
 PRESSURE TRANSDUCER - REMOVAL/INSTALLATION
__________________________________________
 1.  General_______
 A. The tasks that follow are given in this procedure:
 (1)  
Removal of the pressure transucer

 (2)  
　
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