(4)
Install exterior control handle (if removed).
(a)
Attach control handle housing to airplane structure using twelve bolts, washers and locknuts. (View 1)
(b)
Apply sealant around control handle housing flange. Refer to Chapter 51, Seals and Sealant.
(c)
Connect electrical connector to control handle control box.
(5)
Install rod-end bearing and jam nut on threaded end fitting and adjust rod-end bearing to match control handle linkage with control handle in stowed position. Lock with jam nut.
(6)
Check that threaded-end fitting is visible at inspection hole in rod-end bearing. (Detail A)
NOTE: If threaded-end fitting is not visible at inspection hole in rod-end bearing, or if cable is to long to adjust rod end, the cable lock in either or both telescoping units must be released and turned to increase or decrease the amount that cable extends past the cable lock. If cable is too long to adjust rod end, trim cable to required amount.
(7)
Connect rod-end bearing to control handle linkage with bolt, washer and locknut.
(8)
Adjust and test latch mechanism in accordance with adjustment/test procedure.
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Aug 15/78 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 52-61-531 Page 407
3. Removal/Installation Interior Control Assembly
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52-61-531 Page 408 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Aug 15/78
A. General
(1) The interior control assembly consists of a control box, a telescoping unit, a control cable and tubing including a variable length micro-adjust assembly (Fig. 401). The following procedure covers the complete assembly; for partial removal of the assembly omit steps for components not affected.
B. Equipment and Materials
(1)
BMS 519 Class B pressure sealant. (Required on control shaft retaining nut.)
(2)
Grease - BMS 3-24 (Ref. 20-60-2)
C. Remove Interior Control Assembly
(1)
Open airstair door leaving airstair fully retracted.
(2)
Open the following circuit breakers on circuit breaker panel P6.
(a)
Forward Airstair Control
(b)
Forward Airstair Door
(c)
Forward Airstair Actuator
(d)
Forward Airstair Standby Control
(e)
Forward Airstair Standby
(3)
Remove forward left windscreen and sidewall lining panel immediately aft of forward entry door (Ref. Chapter 25, Forward Left Windscreen and Doorway Linings).
(4)
Remove nut and washer from center of control box on aft side and gently pull shaft of door operated lever until splines on shaft are disengaged from control box.
NOTE: Do not withdraw shaft any more than necessary to disengage splines, or spacing washers, which may be on end of shaft, may fall inside of control box support bracket, requiring removal of control box for recovery.
CAUTION: DO NOT ATTEMPT TO CLOSE THE FORWARD ENTRY DOOR WHILE THE SHAFT IS EXTENDED INTO THE DOOR OPENING.
(5)
Remove spent travel tube from upper side of control box (Detail C).
(6)
Remove cotter pin, washer, and bolt connecting forward end of airstair door lock pin rocker arm to fork-end fitting of telescoping unit, and remove fork-end fitting. (Sec. A-A)
(7)
Pull cable from telescoping unit until cable lock emerges and remove cable lock from cable.
(8)
Remove control cable from cable casing.
CAUTION: USE CARE TO KEEP CABLE CLEAN AND FREE OF KINKS IF CABLE IS TO BE REINSTALLED.
(9)
Remove telescoping unit (if required).
(a)
Disconnect cable casing from base of telescoping unit. (Detail B.)
(b)
Remove jam nuts from base of telescoping unit noting position of washers, and remove telescoping unit.
(10)
Remove control box (if required).
(a)
Disconnect micro-adjust from control box.
(b)
Remove four bolts and washers attaching control box to support bracket and remove control box. (Note position of washers between control box and support bracket if any.)
(c)
Remove control shaft from shaft bearing. (Remove spacing washer from end of shaft if installed.)
(11)
Remove control cable casing (if required).
(a)
Unscrew connectors at each end of casing section to be removed.
(b)
Release tubing clamps securing casing to structure, and remove casing.
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