E. With control handle in the emergency position, adjust control rod (13) to obtain 0.03 (+0.02/-0.02) inch dimension between bolt head (23) and crank (22) on emergency extension mechanism. (See detail D.) Connect rod (13) to bellcrank (12).
500 Aft Airstair Control Console Installation
Feb 15/68 Figure 401 (Sheet 4) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 52-14-11 Page 405
F. With control handle in the unlatched position, check for 0.06 inch minimum clearance between bellcrank (12) and crank (21). (See detail C.)
G. Test control console. Refer to Aft Airstair Control Console, Adjustment/Test.
H. With both control handles out of door latched or unlatched position, connect exterior control telescopic unit (15) to bellcrank (16).
NOTE: Check that preload on exterior control handle is 36 to 72 pound-inches when handles are in the door latched position. Adjust upper end of telescopic unit as required.
I. With control handles in the door unlatched position connect radius rod (8) to control arm (4). Coat pin on end fitting (10) with grease prior to installation.
J. Connect electrical wiring to door arming switch (17).
K. Install control console shroud and connect electrical wiring to interior control operating switch.
L. Install control handle (l) on control lever (3) with three attaching bolts (2).
M. Arm emergency extension system. See Aft Airstair Emergency Extension Mechanism, 52-14-
21.
N. Extend airstair using manual or electrical mode.
O. Install access panel on shroud.
P. Operate airstair through complete cycle and check for smooth operation.
500
52-14-11 Page 406 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 15/69
AFT AIRSTAIR CONTROL CONSOLE - ADJUSTMENT/TEST
EFFECTIVITY
Airplanes with Aft Airstair
1. General
A. Adjustment and test of the control console is required when replaced or repaired. However, the test can also be used to check for suspected faulty operation of console.
2. Aft Airstair Control Console Adjustment
A. Adjust Aft Airstair Console
(1)
Remove aft airstair control console (Ref Aft Airstair Control Console -Removal/Installation).
(2)
Disconnect control rod (9, Fig. 501).
(3)
Apply a light force to door latch cam (8) to hold both rollers (11) of cam follower (7) in contact with cam surface in position shown in detail A.
(4)
Position control lever to obtain the 0.545 +0.000/-0.010 inch dimension between door lift cam (2) and lower roller (12) of cam follower (4) shown in detail B and hold in this position.
(5)
Adjust length of control rod (9) and connect to crank (6).
(6)
Rotate control lever (l) to the unlatched position.
(7)
Adjust stop bolt (10) to the 0.69 +0.02/-0.02 inch dimension shown in detail C. Tighten jamnut (14) and install pin and cotter pin (13).
(8)
Rotate control lever toward the latched position and adjust tab to arming switch (3) to a free position dimension of 1.70 +0.02/-0.02 inches as shown in detail D.
NOTE: The arming switch should be in closed position when control lever is 3 degrees on either side of the door latched detent.
(9)
Test console in accordance with par. 3.
(10)
Install control console in airplane (Ref Aft Airstair Control Console - Removal/Installation).
Feb 15/79 52-14-11 Page 501
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Aft Airstair Control Console Adjustment 500
52-14-11 Figure 501 (Sheet 1) Feb 15/68
Page 502
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
500 Aft Airstair Control Console Adjustment
Feb 15/81 Figure 501 (Sheet 2) 52-14-11
Page 503
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
3. Aft Airstair Control Console Test
A. Test Control Console
(1)
Disconnect from the control console, if connected, the exterior control telescopic unit, the airstair radius rod, the door latch control rod and the emergency extension control rod. Refer to Aft Airstair Control Console Removal/Installation.
(2)
Install handle if removed.
(3)
Move the control lever from the door latched to door unlatched position. The maximum force required shall be 25 (+ 5) pounds and shall occur at approximately 8 degrees from latched position.
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