(2)
Install pin at link-to-pedestal assembly.
K. Install upper and lower trailing edge bracket assemblies and inspar No. 5 bracket assembly in outboard stabilizer section rear spar gap cover area.
L. Install outboard stabilizer section front and rear spar gap covers (upper and lower). If removed, or if new horizontal stabilizer is being installed, install all remaining stabilizer-to-body gap covers and seals.
M. Install access panels 3801, 3802 and elevator control pushrod access plate.
N. Remove the stabilizer trim lock assembly from the control stand (Fig. 404).
O. Adjust stabilizer to body seal.
(1) Set horizontal stabilizer at zero degrees trim (three trim units).
501
27-41-11 Page 412 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 15/77
G10765
501 Stabilizer to Body Adjustment
Aug 15/79 Figure 405 27-41-11
Page 413
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(2)
Check that gap between, stabilizer-to-body blade seals and body along upper and lower stabilizer edge is as shown in section A-A, Fig. 405. Adjust seals in or out as required.
NOTE: Bulb seals installed at several locations are normally in contact with body and depressed. Gap requirements do not apply to these seals.
(3)
Position stabilizer leading edge to full down position (ball nut against downstop).
(4)
Check that gap between stabilizer-to-body blade seal that is installed at leading edge of stabilizer running from upper to lower surface is as shown in section A-A, Fig. 405. Check for this gap also at seal segment adjacent to upper spar gap cover. Adjust seals as required.
(5)
Check gap between elevator and body as follows:
(a)
Position stabilizer at 3 units of trim and elevator in neutral. Check elevator-to-body seal gap per section C-C. Adjust as required.
(b)
Manually move stabilizer leading edge to full up position (ball nut against upstop), and manually move elevator -trailing-edge8.8 ±0.05 inches up from index plate on tail cone. Check that elevator-to-body gaps are as shown in section C-C.
P. Position horizontal stabilizer trim cutout switches to NOFMAL. Provide electrical power.
Q. Provide electrical power.
R. On circuit breaker panel P6, close the following circuit breakers:
(1)
Autopilot stabilizer trim servo
(2)
Stabilizer trim actuator
(3)
Stabilizer trim control
S. Adjust and test elevator (Ref 27-31-0, Adjustment/Test).
T. Using stabilizer trim control wheel check that stabilizer will operate through full travel between jackscrew stops.
U. Remove electrical power, if no longer required.
501
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HORIZONTAL STABILIZER - INSPECTION/CHECK
1. General
A. This data consists of illustrations and spar fitting bushing/bolt wear limits chart. Additional wear limits and repair are given in Component Overhaul Manual - Horizontal Tail Center Section Assembly, 55-10-05. For gaining access to, or removing and replacing the component after inspection refer to component removal/installation.
2.
For aerodynamic smoothness, refer to SRM 51-70.
3.
Horizontal Stabilizer Wear Limits (Fig. 601)
INDEX DESIGN LIMITS WEAR LIMITS REPLACE WORN REPAIR WORN REPAIR INSTR.
DIAMETER MAX WEAR MAX DIAM
NO. PART NAME DIM MIN MAX DIM. CLEAR- PART PART
ANCE
1 BEARING ID 0.8780 0.8795 0.8840 0.0010 1
BOLT OD 0.8730 0.8740 0.8680 2
2 BEARING ID 1.2530 1.2541 1.2590 0.010 1
BOLT OD 1.2480 1.2490 1.2450 2
ALL DIMENSIONS ARE IN INCHES
REPLACE WITH BUSHING HAVING SAME PART NUMBER.
STRIP EXISTING FINISH AND CHROME PLATE TO DESIGN DIMENSIONS.
F86276
500 Horizontal Stabilizer Wear Limits
Aug 01/96 Figure 601 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-41-11 Page 601
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