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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 S 015-007
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS WHEN YOU OPEN THE THRUST REVERSERS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (6)  
Open the thrust reversers (AMM 78-31-00/201).

 S 015-008

 (7)  
Supply electrical power (AMM 24-22-00/201).

 F. Do the Operational Test
 NOTE: Component nomenclature data contained in parenthesis refers to
____ the components associated with the check of the right side bleed air regulator and bleed air overheat switch.
 S 715-009
 (1) Push the BLEED TRIP OFF lights (2 locations) on the P5-10 Panel.
 (a)  
Make sure the light comes on when you push the light.

 (b)  
Make sure the light goes off when you release the light.

 S 715-010
 (2)  Push and hold one of two master caution annunciators on the P7 glare shield.
 (a)  Make sure the MASTER CAUTION lights and master caution annunciator lights come on.
 S 715-013
 (3)  Release the master caution annunciator.
 (a)  Make sure the MASTER CAUTION lights and master caution annunciator lights go off.
 S 865-011
 (4)  Put the BLEED 1 (BLEED 2) switch, on the P5-10 Panel, to the ON position.
 (a)  Make sure the bleed air regulator solenoid goes to the ON position.
 NOTE: The movement of the solenoid will make a click.
____
 S 035-012
 (5)  
Remove the bleed air overheat switch for engine No. 1 (engine No. 2) (AMM 36-11-71/401).

 S 425-011

 (6)  
Reconnect the electrical connector to the overheat switch after you remove it from the pneumatic duct.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 755-013
 CAUTION: DO NOT INCREASE THE TEMPERATURE OF THE BLEED AIR OVERHEAT
_______ SWITCH TO MORE THAN 550°F. IF THE TEMPERATURE OF THE SWITCH IS MORE THAN 550°F, IT CAN BE DAMAGED.
 (7)  Use the temperature heat probe to increase the temperature of the bleed air overheat switch to 500°F.
 (a)  Make sure these steps occur: 1) The bleed air regulator solenoid goes to the OFF position.
 NOTE: The movement of the solenoid will make a click.
____
 2) The left (right) BLEED TRIP OFF light on the P5-10 panel comes on. 3) The MASTER CAUTION lights (2 Locations), on the P7 panel come on. 4) The AIR COND annunciator light comes on.
 S 025-017
 (8)  
Remove the controlled heat source from the bleed air overheat switch.

 S 865-015

 (9)  
Push and release one of the two MASTER CAUTION lights.

 (a)  Make sure these steps occur:
 1) The MASTER CAUTION lights go off.
 2) The AIR COND annunciator light goes off.
 3) The left (right) BLEED TRIP OFF light stays on.

 S 865-016
 (10) Push and hold one of the two master caution annunciators.
 (a)  Make sure these lights come on:
 1) The MASTER CAUTION lights (2 Locations)
 2) The master caution annunciators

 S 865-017
 (11)
 Release the master caution annunciator.

 (a)  Make sure these lights stay on:
 1) The MASTER CAUTION lights (2 Locations)
 2) The AIR COND annunciator light
 3) The left (right) BLEED TRIP OFF light

 (12)
 Permit sufficient time for the bleed air overheat switch to cool.

 S 715-018
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