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时间:2011-04-01 19:20来源:蓝天飞行翻译 作者:航空
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 27-41-98
 R850 RELAY  ú
 ú 02 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.  Page 501Nov 12/00 

A

737-300/400/500
MAINTENANCE MANUAL

SEE  A 
SEE B 
110V AC 
STA  INTERLOCK 
887  RELAY 
(R850) 
STA 
867 

INBD 
FWD
A (2 LOCATIONS) WASHER ASSEMBLY INSULATION BLANKET (TYPICAL) 110V AC R850 RELAY LOCATION CLAMP, WASHER, SCREW, 
Figure 501 (Sheet 1) R850 Relay Test 

L38044
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE ú

 27-41-98
 R850 RELAY  ú
 ú 02 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.  Page 502Nov 12/00 

A 737-300/400/500MAINTENANCE MANUAL
STABILIZER
CONNECTOR
TRIM MOTOR
D700
FWD
CONNECTOR D700 ELECTRICAL LOCATION
B

R850 Relay Test
Figure 501 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE ú

 27-41-98
 R850 RELAY  ú
 ú 02 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.  Page 503Nov 12/00 

L38093
A
737-300/400/500MAINTENANCE MANUAL
 S 865-007
 (5)  
Extend the flaps to the FLAPS 1 position, or greater, do this task: "Extend the Trailing Edge Flaps" (AMM 27-51-00/201).

 S 865-008

 (6)  
Close these circuit breakers and attach DO-NOT-OPEN tags:

 (a)  
Circuit Breaker Panel, P6-2
 1) STAB TRIM CONT
 2) STAB TRIM ACTUATOR

 

 S 015-009
 (7) Open the Stabilizer Trim Access Door, 3701 (AMM 12-31-41/201).
 S 025-040
 WARNING: MAKE SURE PERSONS AND EQUIPMENT ARE AWAY FROM THE TRAILING EDGE
_______ FLAPS AND THE LEADING EDGE FLAPS AND SLATS. THE FLAPS AND SLATS CAN MOVE SUDDENLY. THIS CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
 (8)  
Disconnect the D700 connector from the stabilizer trim motor M1659 (Fig. 501).

 E.
R850 Horizontal Stabilizer Interlock Relay Test


 S 865-012
 (1)  Move the stab trim switches on the control wheel to the NOSE UP position and hold.
 NOTE: The same stab trim switches (captain's or first officer's)
____
 should be used during this procedure.

 S 765-013
 WARNING: BE SURE NOT TO TOUCH ADJACENT PINS IN CONNECTOR D700 DURING
_______ VOLTAGE CHECKS. THE 115 VAC IN THE CONNECTOR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (2)  
Use a multimeter to measure the voltage on connector D700 between pin 8 and the surrounding structure.

 (a)
Make sure that the voltage on pin 8 is more than 2 VAC.


 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH THE ú

 27-41-98
 R850 RELAY  ú
 ú 02 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.  Page 504Nov 12/00 

A 737-300/400/500MAINTENANCE MANUAL
 S 765-038
 WARNING: BE SURE NOT TO TOUCH ADJACENT PINS IN CONNECTOR D700 DURING
_______ VOLTAGE CHECKS. THE 115 VAC IN THE CONNECTOR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (3)  
Use a multimeter to measure the voltage on connector D700 between pin 7 and the surrounding structure.

 (a)  
Make sure that the voltage on pin 7 is more than 2 VAC.


 S 865-015
 (4)  
Release the stab trim switches.

 S 865-016

 (5)  
Move the stab trim switches on the control wheel to the NOSE DN position and hold.


 S 765-017
 WARNING: BE SURE NOT TO TOUCH ADJACENT PINS IN CONNECTOR D700 DURING
_______ VOLTAGE CHECKS. THE 115 VAC IN THE CONNECTOR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 
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