737 AMM 飞机维护手册 发动机控制 ENGINE CONTROLS(24)

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X.  Cut lockwire and remove left control shaft nut (3) from left control shaft.
Y.  Remove left lower access panel.
Z.  Remove cotter pin and nut at right end of start drum shaft and remove start drum shaft (4, Fig. 402).
NOTE:  Tag positions of spacers as they are removed. All start drums will have to be removed from shaft to facilitate removal of start control rods.
AA. Disconnect start control rod (1) from start drum (3) by removing bolt.
AB. Remove two cotter pins (2) securing cable to drum and remove start drum from control stand.
AC. Using dowel, (6, Fig. 401) push left control shaft clear of control stand. Use care to prevent loss of key (9, Fig. 403).
CAUTION:  KEY (9, FIG. 403) WILL BE FREE FROM LEFT CONTROL SHAFT AND LEFT FRAME WHEN LEFT CONTROL SHAFT IS DRIVEN FROM CONTROL STAND.
AD. Pull dowel to left until start lever assembly can be lifted from control stand. Use additional dowel from right side of control stand to hold thrust levers and right start lever if left start lever is being removed.
NOTE:  Tag position of spacers removed. Position and thickness of spacers may vary in different Control stands.
500 
Feb 15/79  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  76-11-71 Page 403 

4.  Install Start Levers
A.  Install Start Lever and Drum Assembly
(1)  
Install start lever and start control rod (3,4, and 5, figure 401). Levers are positioned from right to left as follows: large spacer, No. 2 start lever, No. 2 thrust lever, No. 1 thrust lever, No. 1 start lever, speed brake crank with spacer on each side if required, and stabilizer trim indicator with spacer. Each thrust lever also has a spacer. Advance left control shaft from right to left as levers and spacers are positioned 

(2)  
Place cable on start drum (3, figure 402) and secure at ball with two cotter pins (2).

(3)  
Connect start control rod (1) to start drum (3) with thick washer between rod clevis and drum on left side. Secure with washers, nut, and cotter pin.

(4)  
Install start drum shaft (4) with spacers and start drums. Secure with nut and cotter pin.

(5)  
Install left lower access panel.

 

 Start Lever Installation  500 
76-11-71Page 404   Figure 401 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  Feb 15/79 

 

500  Control Stand Start Drums Installation 
Nov 15/70  Figure 402 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  76-11-71 Page 405 

B.  Complete installation of left control shaft.
(1)  
Push left control shaft against dowel, (6, Fig 401).

(2)  
Force dowel, to left until clear of control stand by pushing with left control shaft.

CAUTION:  EXERCISE CARE TO PREVENT SPACERS FROM FALLING WHEN DOWEL IS FORCED FROM CONTROL STAND.

(3)  
Left control shaft shall extend 0.25 (+0.06/-0.07) inches through left control stand frame.

C.  Insert key (9, Fig 403) in left control shaft and left control stand frame and install left control shaft nut (3). Tighten nut to 200 to 300 pound-inches. Lockwire nut to frame.
D.  Install stabilizer trim control wheel shaft (7, Fig 403) and sprocket in left control shaft. Install with long spacer and bearing at left end.
E.  Place stabilizer trim chain on sprocket and install connector link (11, Fig 404).

Control Stand Center Components Installation  514 
76-11-71  Figure 403  Aug 15/80 
Page 406 
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 

F.  Install left stabilizer trim control wheel (1, figure 403) on stabilizer trim control wheel shaft (7).
G.  Install right control shaft (12, figure 404) with levers on stabilizer trim control wheel shaft (2.)
(1)  
Assemble right control shaft with the cranks arranged from left to right: flap handle, spacer, stabilizer trim indicator, spacer and nut.

(2)  
Ensure spacers are installed between bearings on flap handle.

(3)  
Place assembly on stabilizer trim control wheel shaft (2) ensuring two bearings and spacer are properly seated and that the flap switch lever enters the cam on the flap drum.

H.  Connect stabilizer trim indicator link (13) to stabilizer trim indicator by installing bolt (14).
I.  Remove right control shaft nut (5) from right control shaft (12).

500  Control Stand Accesses Installation 
Nov 15/70  Figure 404 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  76-11-71 Page 407 
　
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