C. Clean inside of light cover with cloth.
D. Install and seal lens assembly (Ref 33-42-21, R/I).
E. Restore leading edge flaps to normal as follows:
(1)
Remove flight controls lock from leading edge devices shutoff valve at standby hydraulic module (Ref 27-81-0, MP).
(2)
Remove flight controls lock from trailing edge bypass valve (Ref 27-51-0, MP).
(3)
Remove DO NOT OPERATE tag from alternate flaps arm switch.
WARNING: LEADING FLAPS ARE FAST ACTING AND CAN CAUSE SERIOUS INJURY TO PERSONNEL.
515
Feb 01/95 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 33-42-41 Page 203
RUNWAY TURNOFF TAXI LIGHTS - ADJUSTMENT/TEST
1. General
A. Each runway turnoff taxi light is adjustable laterally and vertically.
B. Two adjustment procedures are provided. Method 1 is preferred and requires no special airplane positioning. Method 2 requires airpane in normal taxi attitude.
C. The landing and runway turnoff light lens assembly is sealed to keep out water and fuel vapors (Ref 33-42-21, R/I).
2. Equipment and Materials
A. Lock Assembly, Flight Controls - F80049-1, -2
B. Light Aligner, Part No. PF 33-001, PF Industries, 9320 15th Ave. So., Seattle, WA 98108 (Method 1 - only)
3. Prepare Runway Turnoff Taxi Light for Adjustment
A. Check that airplane is approximately level.
B. Retract and lock leading edge flaps as follows:
(1)
Install flight controls lock on leading edge devices shutoff valve as standby hydraulic module (Ref 27-81-0 MP).
(2)
Install flight controls lock on trailing edge bypass valve (Ref 27-51-0 MP).
(3)
Check that alternate flaps arm switch is in OFF position and tag switch DO NOT OPERATE.
WARNING: INSTALL FLIGHT CONTROLS LOCKS WHEN MAINTENANCE IS BEING PERFORMED IN THE WING LEADING EDGE AREA. FLAPS ARE FAST ACTING AND CAN CAUSE SERIOUS INJURY TO PERSONNEL.
C. Remove landing and runway turnoff light lens assembly (Ref 33-42-21, R/I).
NOTE: Restrain lens assembly to keep it from falling and breaking.
4. Adjust Inboard Landing Light (Method 1) (Fig. 501, Sheet 2)
A. Adjust inboard landing light
(1)
Position Light Aligner 219 +1 inches forward of light and 228 +1 inches right or left of airplane centerline.
(2)
Adjust target height per Fig. 501, Sheet 2.
(3)
Provide electrical power (Ref 24-22-0, MP).
(4)
Check that RUNWAY TURNOFF TAXI LIGHT circuit breaker P18-3 panel is closed.
(5)
On pilots' overhead panel, set RUNWAY TURNOFF TAXI light switch to ON.
CAUTION: DO NOT LEAVE LIGHT ON MORE THAN 5 MINUTES. ALLOW AT LEAST 5 MINUTES BEFORE TURNING ON AGAIN.
(6)
Verify that some alignment status indicators change from yellow to black. The remaining yellow status indicators show approximate location of center of light beam.
(7)
Turn adjustment screws until all status indicators change to black, except the center indicator, which will remain yellow.
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Sep 20/82 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 33-42-41 Page 501
5. Adjust Runway Turnoff Taxi Light (Method 2) (Fig. 501, Sheet 1)
A. Turn adjustment screws as required to adjust light so that center of beam strikes point A.
6. Restore Airplane to Normal Configuration
A. Clean inside of lens with cloth.
B. Install and seal lens assembly (Ref 33-42-21, R/I).
C. Remove do-not-operate marker from flap control lever.
D. Restore leading edge flaps to normal as follows:
(1)
Remove flight controls lock from leading edge devices shutoff valve at standby hydraulic module (Ref 27-81-0 MP).
(2)
Remove flight controls lock from trailing edge bypass valve (Ref 27-51-0 MP).
(3)
Remove DO NOT OPERATE tag from alternate flaps arm switch.
WARNING: LEADING FLAPS ARE FAST ACTING AND CAN CAUSE SERIOUS INJURY TO PERSONNEL.
E. Remove electrical power if no longer required (Ref 24-22-0, MP).
515
33-42-41 Page 502 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Sep 20/82
H22666
501 Runway Turnoff Taxi Lights Adjustment
Sep 20/82 Figure 501 (Sheet 1) 33-42-41
Page 503
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Runway Turnoff Taxi Lights Adjustment 502
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