15a to start the machine switch on the ignition coil terminal.

31a with 12/24 voltage converter switch voltage switch on then the battery positive.

3112/24 the voltage change-over switch, then the negative battery terminal
Control output terminal on the starter voltage switch, the corresponding terminal on the starter voltage switch 48 starter relay or voltage change-over switch 12/24
50 on the ignition switch, preheat start switch is used to start the output terminal and the corresponding terminal on the start button of the output terminal mechanical start switch.
     
Body control on the input terminal with the voltage change-over switch 12/24, the voltage change-over switch.

61a compound to start the relay, then the charging indicator terminals.

86 start relay winding start end of the terminal.
 
A promoter relay access the terminal of the alternator A.

N composite starter relay, then the alternator N or a similar role in the terminal.

Start the terminal wiring is more complicated and confusing wiring should pay special attention.