⑤
④
③
②
0
8
5
6
9
7
4
1
2
3
⑧
①
⑦
⑥
Figure 1
①
Gate opener;
②
Wireless keypad (optional);
③
Gate;
④
Infrared sensor (optional);
⑤
Alarm lamp (optional);
⑥
Safety stop block;
⑦
Chain;
⑧
Remote control;
4.2 Size of main engine and accessories
4.2.1 Size of main engine
340
288
53
0
Figure 2