737 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 2(155)

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2.  Remove Stabilizer Trim Brake
A.  Remove lower nose compartment access door 1103.
B.  Disconnect rod assembly (5, Fig. 401) from fork (4) on elevator quadrant torque tube (2) by removing nut, washer, and bolt.
C.  Disconnect flexible shaft (8) from brake override lever (9) by removing cotter pin, nut, washers, and bolt.
D.  Remove three mounting bolts (1) attaching stabilizer brake (7) to sprocket support bracket (11).
E.  Remove mounting bolt (6) attaching stabilizer brake to support bracket, and pull brake assembly outboard to disengage splined shaft from sprocket support shaft.
F.  Disconnect rod assembly (5) from brake lever (12) on right side of brake.
3.  Install Stabilizer Trim Brake
A.  Connect rod assembly (5, Fig. 401) to brake lever (12). Install one washer on each side of rod and one under nut. Tighten nut.
B.  For magnesium corrosion control, coat all faying surfaces of stabilizer brake (7) with corrosion preventive compound, MIL-C-16173.
C.  Engage stabilizer trim brake splined shaft with internal spline on sprocket support shaft such that dowel pin on left side of brake assembly is inserted through hole in web of mounting bracket and sprocket support bracket (11).
500 
Feb 20/88  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  27-41-51 Page 401 

G42425
Stabilizer Trim Brake Assembly Installation  500 
27-41-51  Figure 401  Feb 20/89 
Page 402 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

D.  Coat mounting bolts (l) with corrosion preventive compound, MIL-C-11796, and install bolts.
E.  Place washer on mounting bolt (6) and install bolt.
F.  Install rigging pin E-1 through left forward elevator quadrant (Fig. 402).
G.  Install rigging pin ST-2 through brake lever (12) on stabilizer brake (7) (Fig. 401).
WARNING:  WITH RIGGING PIN ST-2 INSTALLED IN BRAKE MECHANISM, DO NOT MOVE ELEVATOR CONTROL COLUMN. IF CONTROL COLUMN IS MOVED 50% OR MORE OF FULL TRAVEL, LEAF SPRINGS ON CONTROL COLUMN TORQUE TUBE WILL BE PERMANENTLY DEFORMED AND MUST BE REPLACED. A DEFORMED LEAF SPRING MAY RESULT IN UNWANTED ENGAGEMENT OF COLUMN ACTUATED STABILIZER TRIM BRAKE.
H.  Adjust rod assembly (5, Fig. 401) to fit between fork (4) on elevator quadrant torque tube (2) and brake lever on stabilizer brake without binding rigging pins. Adjust rod so that thread engagement for each rod end is equal within 0.05 inch.
I.  Connect rod assembly to fork using mounting screw, washer, and nut. Tighten nut.
J.  Push stabilizer brake release handle on control stand down and brake override lever (9) full forward.
K.  Adjust flexible shaft (8) to match brake override lever.
L.  Attach flexible shaft (8) to brake override lever using mounting screw, washer, nut, and cotter pin. Tighten nut finger tight.
M.  Remove rigging pins from elevator quadrant and brake lever.
N.  Test stabilizer trim brake (Ref Stabilizer Trim Brake - Adjustment/Test).
O.  Install lower nose compartment access door.
501 
Jun 20/86  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  27-41-51 Page 403 

G10818
Forward Elevator Control Quadrant  500 
27-41-51Page 404   Figure 402 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  May 15/68 

STABILIZER TRIM BRAKE - ADJUSTMENT/TEST
1.  Stabilizer Trim Brake Adjustment
A.  Equipment and Materials
(1)  Rigging Pins Kit - F70207-3, -52, -61, or -84:
REF NO.  F70207-( )  DIAMETER (INCHES)  LENGTH (INCHES)  FUNCTION 
E-1 ST-2 -11  -16  0.309-0.311 0.182-0.186  6.7 ±0.25 2.7 ±0.25  FWD Control    Quadrant Stabilizer Trim  Brake Arm 

B.  Adjust Stabilizer Trim Brake
(1)  
Remove lower nose compartment access door 1103.

(2)  
Install rigging pin E-1 through left forward elevator control quadrant (Fig. 502).

(3)  
Attempt to install rigging pin ST-2 through brake arm on stabilizer trim brake (7, Fig. 501). If rigging pin cannot be installed without binding, disconnect rod assembly (5) and adjust rod assembly as required to install rigging pin. Connect rod assembly to brake arm (12) with washer on each side of brake arm and under nut. Tighten nut.

WARNING:  WITH RIGGING PIN ST-2 INSTALLED IN BRAKE MECHANISM, DO NOT MOVE ELEVATOR CONTROL COLUMN. IF CONTROL COLUMN IS MOVED 50% OR MORE OF FULL TRAVEL, LEAF SPRINGS ON CONTROL COLUMN TORQUE TUBE WILL BE PERMANENTLY DEFORMED AND MUST BE REPLACED. A DEFORMED LEAF SPRING MAY RESULT IN UNWANTED ENGAGEMENT OF COLUMN ACTUATED STABILIZER TRIM BRAKE.
　
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