G09568
Neutral Shift Crank Support Bearing Installation 500
27-31-91 Figure 401 Oct 20/84
Page 402
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(3)
Withdraw bearing with inner and outer bearing retainers from long end of neutral shift crank.
(4)
Separate bearings from bearing retainers.
(5)
Apply primer between each bearing and its respective bearing retainers. Press new bearings into bearing retainers.
WARNING: BMS 10-11, TYPE 1, PRIMER IS TOXIC AND FLAMMABLE. USE ONLY IN WELL VENTILATED AREA. DO NOT GET IN EYES OR ON SKIN.
(6)
Apply primer to inside diameter of bearings and install bearing each end of neutral shift crank.
(7)
Slide retainer inside long end of neutral shift crank and install two nuts, bolts and washers through clevis crank.
5. Install Elevator Neutral Shift Mechanism
A. Install neutral shift crank (See figure 402).
(1) Position neutral shift crank between feel and centering unit support bracket.
G09463
500 Elevator Neutral Shift Mechanism
Feb 15/73 Figure 402 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-31-91 Page 403
G09475
Stabilizer Trim Actuator 500
27-31-91Page 404 Figure 403 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Nov 15/67
(2)
Install spacers as required between each bearing housing and support bracket, to align crank with mach trim actuator terminal.
(3)
Secure neutral shift crank to support bracket using six bolts, nuts and washers. Install bolts with heads outboard. Ensure longer bolt is used through position transmitter collar bracket.
B. Install input rods.
(1)
Attach forward ends of input rods to horizontal stabilizer center section using two bolts, nuts and washers.
(2)
Attach aft (adjustable) ends of input rods to horizontal stabilizer center section using two bolts, nuts and washers.
C. Attach neutral shift crank to mach trim actuator.
(1)
Insert dualbolt from left to right.
(2)
Install first locknut and tighten within 85 to 100 pound-inches.
CAUTION: ENSURE THAT ELEVATOR NEUTRAL SHIFT POSITION TRANSMITTER CRANK IS CORRECTLY ORIENTED IN THE UP DIRECTION. INCORRECT ORIENTATION COULD CAUSE UNCOMMANDED STABILIZER OPERATION WHEN AUTOPILOT IS ENGAGED.
G09479
500 Stabilizer Trim Lock Installation
Oct 20/85 Figure 404 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-31-91 Page 405
G09508
Rigging Pin E-5 Location 500
27-31-91 Figure 405 Feb 20/85
Page 406
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(3) Install second locknut and tighten within 30 to 35 pound-inches.
CAUTION: AFTER SETTING TORQUE ON SECOND LOCKNUT, DO NOT ATTEMPT TO RESET TORQUE VALUE ON FIRST LOCKNUT.
D. Remove rigging pin E-5.
E. Adjust and test neutral shift mechanism per 27-31-0, A/T.
6. Restore Airplane to Original Configuration
A. Close circuit breakers.
B. Remove stabilizer trim lock.
C. Connect stabilizer trim actuator and autopilot trim servo electrical connectors to stabilizer trim actuator.
D. Restore airplane to normal hydraulic configuration (Ref 27-31-0, MP).
E. Close or install access doors and panels.
500
Oct 20/84 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-31-91 Page 407
ELEVATOR POWER CONTROL UNIT - REMOVAL/INSTALLATION
1. General
A. Maintenance Practices for power control unit autopilot components are contained in Chapter 22, Auto Flight.
2. Equipment and Materials
A. Grease - MIL-G-23827 (Ref 20-30-21)
B. Rigging Pins Kit - F70207-3, -52, -61, or -84:
REF NO. F70207-( ) DIAMETER (INCHES) LENGTH (INCHES) FUNCTION
E-5 -11 0.309-0.311 6.7 +0.25 AFT CONTROL QUADRANT
C. Elevator Rigging and Restraining Fixture-F80063-501 (Preferred) or F80063-500 (Optional).
D. Trammel Bar - F80055-1
3. Remove Elevator Power Control Unit
A. Set horizontal stabilizer B dimension at 41.57 +0.05 inches (Fig. 402).
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