G10992
500 Horizontal Stabilizer Hoisting Sling Installation
May 01/99 Figure 401 27-41-11
Page 403
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Horizontal Stabilizer Attachment Points 500
27-41-11 Page 404 Figure 402 (Sheet 1) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 20/85
F86154 G42378 G10748 G10745
507 Horizontal Stabilizer Attachment Points
Aug 01/96 Figure 402 (Sheet 2) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-41-11 Page 405
Horizontal Stabilizer Attachment Points 500
27-41-11 Page 406 Figure 402 (Sheet 3) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 15/73
500 Horizontal Stabilizer Installation Details
Feb 15/73 Figure 403 (Sheet 1) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-41-11 Page 407
Horizontal Stabilizer Installation Details 500
27-41-11 Page 408 Figure 403 (Sheet 2) BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Feb 15/73
(2)
Attach sling to spreader bar.
CAUTION: USE F80006-2 CABLE TO REMOVE STABILIZER WITHOUT ELEVATORS INSTALLED. USE F80006-51 CABLE TO REMOVE STABILIZER WITH ELEVATORS INSTALLED. SUDDEN SHIFT OF STABILIZER MAY OCCUR.
(3)
Attach hoist to sling. Lift sling into position and fasten to attachment fittings.
CAUTION: TAKE PRECAUTION NOT TO DAMAGE STABILIZER BY SUDDEN OR UNCONTROLLED MOVEMENTS OF SLING.
D. Apply sufficient tension to sling to support weight of horizontal stabilizer.
E. Detach stabilizer outboard section from center section as follows:
NOTE: If mounting bolts are frozen, use C55005-11 to assist in removal. Approximate weight of stabilizer without elevator, elevator tab and balance panels is 570 pounds. Elevator, with tab and balance panels installed, weighs approximately 173 pounds.
(1) Remove locking bolt (4, Fig. 402), washer (3), and bolt lock (2) from mounting bolts (1) at rear spar. On some airplanes, the bolt lock (2) is not used. Remove nut retainers (4) from mounting bolts (1) instead.
G42408
500 Horizontal Stabilizer Trim Lock Installation
May 01/99 Figure 404 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-41-11 Page 409
(2)
On airplanes without nut retainers, remove three mounting bolts (1), washers (8), and nuts
(7) from center section clevis (5) at stabilizer rear spar. On airplanes with nut retainers, remove three mounting bolts (1), washers (5), washers (6), and nut retainers (4) from center section clevis (2) at stabilizer rear spar.
(3)
Ensure that omega antenna cable is disconnected.
CAUTION: BOLTS ARE DIFFERENT IN LENGTH, NOTE PROPER LOCATION FOR REINSTALLATION.
NOTE: If necessary, adjust tension in sling to facilitate removal of mounting bolts.
(4) Remove cotter pins (13), nuts (12), and washers (14 and 15) from two mounting bolts, (9) at stabilizer front spar. Withdraw mounting bolts, shims (16 and 17), and washers (18).
F. Hoist stabilizer outboard section clear of airplane, moving it horizontally outward, then lower onto support stand.
5. Prepare for Installation of Horizontal Stabilizer
A. Remove elevator systems A and B hydraulic power (Ref 27-31-0 MP).
B. Ensure that the following circuit breakers on panel P6 are open:
(1)
Autopilot stabilizer trim servo
(2)
Stabilizer trim actuator
C. Ensure horizontal stabilizer is set at zero degrees (3 units of trim), that horizontal stabilizer trim wheel lock is installed, and that horizontal stabilizer trim cutout switches are positioned to CUTOUT.
6. Install Horizontal Stabilizer
A. Install horizontal stabilizer sling (Fig. 401) as follows:
(1)
Locate attachment points on upper surface of stabilizer and install sling attachment fittings.
(2)
Attach sling to spreader bar.
CAUTION: USE F80006-2 CABLE TO INSTALL STABILIZER WITHOUT ELEVATORS INSTALLED.
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