曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者
C. Starting vibrator
During the engine start phase, the R.H. magneto is grounded through the starting vibrator. The latter produces a considerable magnetic field in the L.H. magneto and generates a much more powerful spark to the plugs, which allows a better ignition of the air/fuel mixture. After the starting, when the starting key is released, the starting vibrator supply is cut out, the R.H. magneto is no longer grounded and the two magnetos provide a high voltage current to the plugs.
4. OPERATION
The magneto selector is actuated by means of a key that must be turned clockwise in order to ensure the following functions : "OFF" ; "L" magneto : "R" magneto ; "BOTH" magnetos ; "START PUSH".
NOTE : Release the key when engine starts, the selector positions automatically to "BOTH".
AEAB
Validity : With starting vibrator 74-10 00Page
(EG) OCT 2
o 1
SOCATA MAINTENANCE MANUAL
TB 20 MODEL
BAT BRKR
0
RIGHT
0 MAGNETO
LR +BAT
Retard 0—/r SELECTOR
Bo
LEFT
N-/ • GND
5A
FUSES PANEL
—0—
IN
STARTING
VIBRATOR
0 BO
Electric generation system - Electrical schematic
Figure 1
AEAB
Validity : With starting vibrator 74-10 00Page 2
(Ed) OCT 02
A - Magneto selector
B - Dual magneto
C - Starting vibrator
®
Electric generation system - Identification and location of components
Figure 2
AEAB
Validity : With starting vibrator 74-10 00Page 3
(EG) OCT 02
PAGE INTENTIONALLY LEFT BLANK
MAGNETOS
REMOVAL / INSTALLATION
1. REMOVAL OF DUAL MAGNETO (Figure 401)
A. Tools and consumable materials
None
B. Procedure
WARNING : PRIOR TO ANY OPERATION, ENSURE THAT THE ENGINE, EXHAUST PIPE AND MANIFOLDS ARE COLD. IF NOT, TAKE NECESSARY PRECAUTIONS TO AVOID SEVERE BURNS.
WARNING : PRIOR TO ANY OPERATION, ENSURE THAT THE KEY IS REMOVED FROM MAGNETO SELECTOR AND THAT "MAIN SWITCH" IS OFF.
IF AIRCRAFT IS EQUIPPED WITH DISCONNECT PLUG ON FIREWALL, DISCONNECT "MAGNETO DISCONNECT" PLUG AND CONNECT IT TO "GROUND MAGNETO FOR SERVICING" PLUG.
1) Remove the engine cowlings - refer to 71-10-01.
2) Remove the ignition harnesses - refer to 74-20-01.
3) Mark and disconnect magneto ends (5) and ground wires (4).
4) Hold magneto (2), remove nuts (7), lockwashers (8) and clamps (9). Discard lockwashers (8).
中国通航网 www.ga.cn
通航翻译 www.aviation.cn
本文链接地址：TB20 MAINTENANCE MANUAL 74 点火 TB20飞机维护手册(4)
|
