(b)  
Make sure these circuit breakers are closed on the P6 panel: 1) L RAM MOD 2) R RAM MOD 3) RAM MOD CONT

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A 
737-300/400/500MAINTENANCE MANUAL 
RAM AIR DUCT 
ACCESS DOOR 
RAM AIR 
INLET  RAM AIR 
EXIT 
EQUIPMENT BAY DOORS 
FWD 
SEE  A 
BOLT ASSEMBLY 
BONDING JUMPER 
RAM AIR 
ACTUATOR 
ELECTRICAL
CONNECTOR 
TORQUE SHAFT 
QUADRANT 
RIGGING PIN 
ACTUATOR 
END FITTING 
INBD 
A 
FWD 
Ram Air Actuator Installation 
Figure 401 

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A
737-300/400/500MAINTENANCE MANUAL
 (c)  
Refer to AMM 32-09-10/001 for the location of the ground sensing test switch and the identification of the other systems that are related to the switch.

 (d)  
Make sure that if you operate the ground sensing test switch that the other systems will not be damaged.

 WARNING: MAKE SURE THAT PERSONS ARE CLEAR OF THE LEADING EDGE
_______ SLATS. THE SLATS CAN MOVE QUICKLY IF THE AIR/GROUND RELAYS FOR THE NOSE OR THE MAIN LANDING GEAR GET INPUT OF AN AIRBORNE CONDITION. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (e)  
Push and hold the ground sensing test switch.

 (f)  
Make sure that the actuator extends a short distance.

 (g)  
Release the ground sensing test switch.

 (h)  
Make sure that the actuator retracts.

 S 434-013
 (8)  
Install the bolt through the arm of the torque shaft quadrant and the actuator end fitting.

 S 864-014

 (9)  
If you cannot install the bolt, adjust the actuator end fitting then install the bolt.

 (10)
 Remove the rigging pin.

 (11)
 Close the access door for the ram air duct.

 S 864-017

 (12)
 Remove the electrical power if it is not necessary (Ref 24-22-00/201).

 S 094-015
 S 414-016
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A
737-300/400/500MAINTENANCE MANUAL
 RAM AIR TEMPERATURE CONTROLLER - REMOVAL/INSTALLATION
_____________________________________________________
 1. General
 A. These tasks are in this procedure.
 (1)  
Ram Air Temperature Controller Removal

 (2)  
Ram Air Temperature Controller Installation.

 TASK 21-52-12-004-001
 2.  Ram Air Temperature Controller Removal (Fig 401)______________________________________
 A. Access
 (1)  Location Zones
 211 Left Ram Air Duct
 213 Right Ram Air Duct

 B. Procedure
 S 014-003
 (1)  
Open the access door for the ram air duct.

 S 864-004

 (2)
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  On the main power distribution panel, P6: 1) 6E1 AIR COND RAM MOD RIGHT 2) 6E1 AIR COND RAM MOD LEFT
 S 034-005
 (3)  
Disconnect the electrical connector on the temperature controller.

 S 034-006

 (4)
　
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