NOTE: Access to countersunk screw is gained by lifting seal out of groove in area of screw head.
2) Reposition guide pin.
NOTE: Vee slots are 28 to the inch or approximately 0.036 inch per slot.
3) Tighten screws.
(3)
Adjust window lockplate and bellcranks.
(a)
Adjust window lockplate (Detail B) so that, with handle (3) against window locked shut stop (2), center of glide special bolt (8) in lower forward bellcrank (5) is 0.22 +0.03 inch forward of center of lower forward bellcrank shaft (12). Make adjustment by loosening the three lockplate adjustment screws (1) which secure lockplate to stiffening angle and move lockplate in or out as needed. Tighten adjusting screws. Serrated tie plate secures lockplate in place.
(b)
With handle still held against window locked shut stop, adjust length of rod assembly
(11) so that center of glide special bolt on lower aft bellcrank (10) is 0.22 +0.03 inch forward of center of lower aft bellcrank shaft. Make adjustment by slackening locknuts at ends of rod, rotate rod to adjust length and tighten locknuts.
(4)
Adjust force required to close sliding window.
(a)
Unscrew nuts attaching window control housings to window frame and remove three control housings at window corners.
(b)
Add or remove shims as required to increase or decrease force necessary to close the window.
NOTE: Changing number of shims at one control housing will necessitate a similar change at the other control housing unless adjustment is being made to correct a binding condition.
(c)
Install window control housings on window frame.
(5)
Install window No. 2 (Ref Window No. 2 [Pilots's Sliding Window] - Removal/Installation).
(6)
Check fair of installed window (Fig. 501, Sheet 1).
(7)
Adjust emergency exit release mechanism exterior handle (right-hand window on standard passenger airplanes, both on passenger/cargo convertible airplanes, both on passenger/cargo convertible airplanes) to fit flush with outside contour of skin when in stowed position (View 1), by adjusting turnbuckle and eccentric bushing.
(8)
Test sliding window per par. 2.
(9)
With windows closed and latched, verify engagement of camshaft assembly pin with lower cam assembly (Fig. 501, Section B-B).
(a)
Look between lower edge of guide and cockpit trim panel. Check that pin is no more than 0.02 inch above or 0.04 inch below upper surface of lower cam assembly.
(b)
If pin is too high, disassemble mechanism and shorten by grinding. Do not move pin in camshaft assembly.
(c)
If lower end of pin is below camshaft assembly cam, replace camshaft assembly. If lower end of pin is flush with lower surface of cam but upper end of pin is not within
500
56-12-11 Page 504 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Oct 20/92
0.04 inch of lower cam assembly upper surface, readjust window to lower it within window frame.
2. Window No. 2 (Pilots' Sliding Window) Test
A. Test Sliding Window Operation
(1)
Check opening and closing operations of window.
(2)
Check that the window unlocks, and that the handle can be rotated freely when trigger is depressed.
(3)
Check for freedom from binding or obstructions throughout opening cycle.
(4)
Check that window open lock securely holds window in open position.
(5)
Check that the window can be unlocked from the open position.
(6)
Check for freedom from binding or obstructions throughout closing cycle.
(7)
Check that window locks shut when the handle is fully forward with trigger released.
(8)
Check that the force required to close the window does not exceed 45 (+ 15) pounds.
B. Test Window Emergency Exit Release Mechanism (Right Window on Standard Passenger Airplanes, both passenger/cargo convertible airplanes
(1)
Check that sliding window handle unlocks when handle is manually pulled 3.50 inches with a maximum force of 90 pounds.
(2)
Check that when exterior handle is in stowed position, the handle fits flush with outside contour of skin.
540
Feb 15/79 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 56-12-11 Page 505
WINDOW NO. 2 (PILOTS' SLIDING WINDOW) - INSPECTION/CHECK
1. General
A. The inspection/check of window No. 2 (Pilots' Sliding Window) should be in accordance with established window damage criteria in addition to the following (Ref 56-11-0, Control Cabin Windows - Damage Criteria).
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