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"AP DISC TRM INT" pushbutton. annunciation flashes and goes off.
(b) LS10 buzzer sounds.
(c) The aural message "AUTOPILOT" is transmitted via the cabin loudspeaker and/ or via headsets.
(d) Make sure that the pilot's control wheel rotates freely on the pitch and roll axes.
WA
Validity : KFC 225 22-12 00 (BA) Page juN502 0 4
ACTION
(13) Push momentarily "AP" pushbutton of the A82 flight computer.
(14) Apply force on the pilot's control wheel on the pitch and roll axes.
(15) On the pilot's control wheel operate simultaneously and hold both parts of "TRIM UP-DN" split rocker switch in "UP" direction.
(16) Apply force on the control wheel of the pitch trim.
(17) Release both parts of "TRIM UP-DN" split rocker switch. Push momentarily "AP" pushbutton of the A82 flight computer.
With GO AROUND pushbutton
(18) Push momentarily (Go Around)
pushbutton on the control pedestal front cover.
RESULT
(a) "AP" pushbutton actuation engages all servo actuators.
(a) Make sure that servo actuators clutches can be overridden.
(a) Disconnection of the autopilot.
(a) Make sure that the servo actuator clutch of
the pitch trim can be manually overridden.
(a) "AP" pushbutton actuation engages all servo actuators.
(a) Disconnection of the autopilot.
All
6) Release "AP MASTER" switch.
7) Set radio master switch to "OFF".
8) Shut down the engine - refer to 05-30-02. 2. ADJUSTMENT OF SERVO ACTUATORS CLUTCH FRICTION TORQUE (Figure 501 and Table 501)
A. Tools and consumable materials
- Servo clutch torque test stand T700A2299000000
- 28 VDC - 1 A max. power supply source
- Torque wrench, 0 - 100 lbf. in (0 - 10 N.m)
B. Procedure
CAUTION : WHEN SEVERAL MOUNTING PLATES HAVE TO BE REMOVED SIMULTANEOUSLY, MARK EACH MOUNTING PLATE SINCE THE CLUTCH FRICTION TORQUE SETTING IS DIFFERENT ACCORDING TO THE SERVO ACTUATOR TO WHICH IT IS ASSOCIATED.
1) Remove mounting plate (2) :
- refer to 22-12-03 for B36 roll servo actuator,
AAAA
Validity : KFC 225 22-12 00(BA) aJl.7
P g N50034
- refer to 22-12-04 for B35 pitch servo actuator,
- refer to 22-12-06 for B38 pitch trim servo actuator.
2) Position the test stand on a work bench.
3) Secure mounting plate (2) to test stand (1) with wing nuts (5) and washers (4).
4) Position adapter (6) on drive capstan (9) and insert locating pin (3) to link the adapter to the drive capstan.
NOTE : Insert locating pin (3) vertically.
5) Connect test stand (1) to the 28-VDC power supply source.
6) Position and maintain torque wrench (7) on adapter (6).
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本文链接地址：
TB20 MAINTENANCE MANUAL 22 AUTO FLIGHT TB20飞机维护手册 22 自动飞行(43)
