(d)
Perform steps (3)(e) and on for new cable installation and steps (3)(f) and on for rerigged cables. Clamp thrust lever against control stand idle stop.
(e)
New cable installation: 1) Using tensiometer to measure load, adjust cable tension to 125 pounds of tension. 2) Remove rig pins from engine thrust quadrant and the drum and brake
mechanism or the autothrottle clutch mechanism. 3) Unclamp thrust lever 4) Operate the thrust lever through 25 cycles. 5) Install Type 1 rig pin through Support Installation and the drum and brake
mechanism or the autothrottle clutch and cam assembly located between the floor beams in the electronic equipment compartment (Fig. 502). 6) Clamp thrust lever against control stand idle stop.
(f) New or rerigged control cables:
1) Use the tensiometer to measure load, adjust control cable tension (Fig. 501 for turnbuckle locations). Adjust the load for the appropriate temperature (Fig. 502A, Table II). a) Adjust forward thrust control cables so that rig pin can be freely inserted
through the drum and friction brake mechanism or the autothrottle clutch mechanism.
b) Make sure the Type 1 rig pin is installed in the drum and brake mechanism or the autothrottle clutch mechanism. Adjust the aft throttle cables using turnbuckles in the wing so that rig pin can be freely inserted through the engine thrust quadrant and its support bracket (Fig. 503). Cables must still have rig load specified in Table II, Fig. 502A.
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T54784
541 Cable Function and Loading Oct 20/83 Figure 502A 76-11-0 Page 506A/506B BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
2) Unclamp thrust lever and remove rig pins.
3) Cycle system three times.
4) With thrust lever against idle stop, verify that the rig pin in autothrottle clutch can
be installed without any visible movement in clutch cable drum and rig pin in engine thrust drum can be installed freely. 5) Install Type 1 rig pin through the engine thrust quadrant and its support bracket (Fig. 503). 6) With fuel control unit thrust crank in idle position, install Type 2 flat rig pin (Fig. 505, Detail C). 7) Install rod end of engine thrust push-pull cable at left thrust crank of engine cross-shaft, the bolt must fit freely. (Fig. 504).
NOTE: If the bolt cannot fit freely through the rod end of the engine thrust push-pull cable, adjustment of the engine thrust push-pull cable is necessary.
8) For push-pull cable installations using locknut, install washer and locknut and
torque nut 50 to 70 pound-inches (Fig. 504).
For push-pull cable installations with bolt retainer, install washer and locknut.
Torque nut 50 to 70 pound-inches and bend retainer tab over bolthead
(Fig. 504).
9) Reinstall all thrust cable turnbuckle locking clips.
10) Remove rig pins.
11) On GJ B-2509, B-2510, adjust thrust lever position transmitter (LVDT) (Ref 22-31-81, Thrust Lever Position Transmitters - A/T).
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Drum and Shaft Assembly 514
76-11-0 Figure 503 May 15/72
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(g) If no further adjustments to the engine thrust control system are to be performed: 1) Perform Engine Thrust Control System Test Procedure
NOTE: If the engine control system is disturbed for any reason, both forward and reverse thrust system tests should be performed.
(4) Adjust engine thrust push-pull cable.
(a)
If not installed, insert Type 1 rig pin through engine thrust drum and its support bracket (Fig. 503).
(b)
Disconnect the thrust push-pull cable from the thrust crank on the engine cross-shaft (Fig. 504).
(c)
With the thrust crank for the fuel control unit in the idle position, install the Type 2 flat rig pin (Fig. 505, Detail C).
(d)
Make sure the Type 3 rig pin can be freely installed through the right thrust crank and the thrust control rig pin bracket (Fig. 505, Detail A). 1) If the Type 3 rig pin can't be freely installed, adjust the thrust rod.
(e)
Remove the rig pin from the fuel control unit.
(f)
With the Type 3 rig pin installed, adjust the length of the thrust push-pull cable at the lower end (Fig. 504): 1) Remove lockwire and loosen rod end jamnut. Adjust rod end to obtain best
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