(8)
Check roller engagement with each latch fitting to verify that roller clears entry lip on latch fitting when handle is moved to the latched position. Check clearance at each latch consecutively with 10 +1 pound spring load or equivalent applied to the door in an inboard direction at the adjacent corner stop pin fitting while latching. If necessary, adjust by shortening pushrod (34) an additional 1/2 to 1-1/2 turns, as required, to move door outboard to provide roller clearance. After adjustment, check that force required to move handle from extended to retracted position does not exceed 20 pounds.
NOTE: Shortening the control rod will increase handle retraction force.
(9)
With door latch in open position, check length of snubber (15, detail D) to make sure snubber does not bottom before latch pin engages hole in upper roller guide plate at upper hinge assembly. If necessary, adjust snubber length at rod end bearing (17) by removing four bolts holding attach fitting (18) to hinge support. Tighten rod end bearing check nut
(16) and reinstall attach fitting.
(10)
Check fuselage outside skin (7, detail B) and door outside skin (8) gap measurements.
(a)
Gap around upper gate should be 0.12 +0.06 inch.
(b)
Gap along forward and aft edge of door should be 0.09 +0.09/-0.03 inch.
(c)
Deleted.
(d)
Gap at bottom of lower gate should be 0.15 + 0.06/-0.09 inch.
(11)
Check operation of outside handle seating spring (27, detail F).
(a) Check that handle seating spring will retain handle (24) in stowed position. If necessary, adjust seating spring retaining nut (26) using tool F70038.
NOTE: To gain access to the spring retaining nut (26), the outside handle (24), pin retaining washer (25), and lock ring (28) should be removed.
(12)
Check installation of upper and lower hinge arm covers. If necessary, use laminated shims to fair covers with fuselage external contour.
(13)
Check seal installation (Ref 52-09-131, Bulb Type Mechanical Seals).
(13)
Check striker pin fitting installation on door.
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52-11-0 Page 508 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 20/84
(a) If a new door was installed, attach striker pin fitting to door.
1) Locate striker pin fitting index hole on lower aft edge of door, position fitting initially as shown in Fig. 504 and attach to door frame with bolt, washer and self-locking nut.
2) After the striker pin fitting has been positioned per step C, drill three 0.190 + 0.009/-0.000-inch holes through the fitting and door frame and install bolts (NAS1103-3), flat washers (AN960DIOL) and self-locking nuts (NAS679A3).
(b)
Fill the inner surface of the airstair latch pin actuating lever and the recessed portion of the scuff plate with modeling clay, or use any other approved method.
(c)
Close door slowly and check striker pin location on lever. Ensure that lever is sufficiently clear of the scuff plate. Adjust striker pin fitting position as required to obtain 1.05 + 0.15/-0.03-inch dimension (Section B-B, Fig. 504).
NOTE: If necessary, slot the index hole on door frame to 0.15 inch maximum dimension for vertical adjustment.
(d)
Check that striker pin engagement with lever is 0.50 -inch minimum dimension (Section A-A, Fig. 504). If this dimension is not obtained, adjust per 52-51-531, Internal Control Assembly.
D. Restore Airplane to Normal
(1)
Remove 60-pound weight from door.
(2)
Install forward mechanism access panel (4, Fig. 501) on door with screws.
(3)
Install door lining and insulation panels (Ref. 52-11-31, Forward Entry Door Lining and Insulation).
(4)
Test door for proper operation per par. 4.
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Aug 15/77 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 52-11-0 Page 509
3. Forward Entry Door Adjustment for Soft Unlatching
A. Equipment and Materials
(1) Forward Entry Door Latch Roller Setting Tool - F80178-1.
B. Prepare for Adjustment
(1)
Remove door lining and insulation panels (Ref. 52-11-31, Removal/Installation).
(2)
Remove screws attaching forward mechanism access panel (4, Fig. 501) to door structure and remove panel.
(3)
Attach 60-pound weight to inside door frame at approximate midpoint of lower half of door. This weight is a substitute for escape slide pack removed with lining.
C. Adjust Forward Entry Door to Correct for Soft Unlatching
(1)
Set latch roller overcenter using forward entry door latch roller setting tool and proceed to step (4) or, if tool is not available, set overcenter per steps (2) and (3).
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