Forward Airstair Door Normal System Motor Installation 500
52-61-581 Figure 401 May 01/76
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
FORWARD AIRSTAIR DOOR STANDBY SYSTEM MOTOR - REMOVAL/INSTALLATION
EFFECTIVITY
Standard Passenger Airplanes
1. Remove Forward Airstair Door Standby System Motor
A. Open the following circuit breakers on circuit breaker panel P6:
(1)
FORWARD AIRSTAIR CONTROL
(2)
FORWARD AIRSTAIR DOOR
(3)
FORWARD AIRSTAIR ACTUATOR
(4)
FORWARD AIRSTAIR STANDBY CONTROL
(5)
FORWARD AIRSTAIR STANDBY
B. Gain access to work area through electronic compartment access door.
C. Disconnect electrical connector from standby system motor (Fig. 401).
D. Remove the four bolts attaching motor to aft side of actuator and remove motor.
2. Install Forward Airstair Door Standby System Motor
A. Position motor on aft side of actuator and install four attaching bolts (Fig. 401).
B. Install lockwire on attaching bolts.
C. Connect electrical connector to standby system motor.
D. Close forward airstair circuit breaker and P6 panel.
E. Operate airstair through complete cycle using standby system to check operation of motor.
WARNING: DO NOT OPERATE THE AIRSTAIR WHEN THESE CONDITIONS OCCUR:
-YOU WILL OPERATE THE AIRSTAIR MORE THAN 3 CYCLES IN 20 MINUTES -THE WIND IS MORE THAN 40 KNOTS -THERE IS NO SUPPORT UNDER THE END OF THE AIRSTAIR WHEN THE
AIRPLANE IS ON JACKS -THE FORWARD ENTRY DOOR IS OPENED FULLY -THE AREA IS NOT CLEAR OF PEOPLE OR EQUIPMENT.
IF YOU OPERATE THE AIRSTAIR WHEN THESE CONDITIONS OCCUR, YOU CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
5C8
Feb 20/92 52-61-591 Page 401
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Forward Airstair Door Standby System Motor Installation 500
52-61-591 Figure 401 Aug 15/67
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
FORWARD AIRSTAIR DOOR CLOSED LIMIT SWITCHES - REMOVAL/INSTALLATION
EFFECTIVITY
Standard Passenger Airplanes
1. General
A. The normal system door closed limit switch and standby system door closed limit switch are identical switches and the following procedure is applicable to each switch.
2. Remove Forward Airstair Door Closed Limit Switches
A. With forward airstair door open providing access to lower sill of airstair door opening, open the following circuit breakers on panel P6:
(1)
FORWARD AIRSTAIR CONTROL
(2)
FORWARD AIRSTAIR DOOR
(3)
FORWARD AIRSTAIR ACTUATOR
(4)
FORWARD AIRSTAIR STANDBY CONTROL
(5)
FORWARD AIRSTAIR STANDBY
B. Disconnect limit switch electrical wiring at splices.
C. Remove inboard locknut from limit switch and remove switch from switch bracket (Fig. 401).
3. Install Forward Airstair Door Closed Limit Switches
A. Remove outside locknut from limit switch, position switch on switch bracket and secure with locknut.
B. Connect electrical wiring to limit switch at splices.
C. Adjust limit switch (Ref 52-61-601, Adjustment/Test).
5C8
Feb 20/84 52-61-601 Page 401
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Forward Airstair Door Closed Limit Switches Installation 500
52-61-601Page 402 Figure 401 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Aug 15/67
FORWARD AIRSTAIR DOOR CLOSED LIMIT SWITCHES - ADJUSTMENT/TEST
EFFECTIVITY
Standard Passenger Airplanes
1. General
A. The normal system door closed limit switch and standby system door closed limit switch are identical switches and the following procedure is applicable to each switch.
WARNING: DO NOT OPERATE THE AIRSTAIR WHEN THESE CONDITIONS OCCUR:
-YOU WILL OPERATE THE AIRSTAIR MORE THAN 3 CYCLES IN 20 MINUTES -THE WIND IS MORE THAN 40 KNOTS -THERE IS NO SUPPORT UNDER THE END OF THE AIRSTAIR WHEN THE
AIRPLANE IS ON JACKS -THE FORWARD ENTRY DOOR IS OPENED FULLY -THE AREA IS NOT CLEAR OF PEOPLE OR EQUIPMENT.
IF YOU OPERATE THE AIRSTAIR WHEN THESE CONDITIONS OCCUR, YOU CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
2. Forward Airstair Door Closed Limit Switches Adjustment
A. Equipment and Materials
(1) Molding Clay or similar substance
B. Adjust Airstair Door Closed Limit Switch
(1)
Remove standby motor (Ref 52-61-591 R/I).
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