lower than 1.5mm² and the length shall be determined by users according to the field situation) due
to different installation environments;
e) Please unlock the main engine before installation, the unlock method is: take out the key cover,
insert the key, and open the manual release bar till it rotates by 90° as shown in Figure 7. Then turn
the output sprocket and the sprocket can be rotated easily;
Rotate
Figure 7
4.3.3 Chain installation
Close the gate; connect the tie rod with chain through chain link; fasten the tie rod to the door
connecting plate by washers and nuts as shown in Figure 8. If necessary, the elasticity of chain can
be adjusted through the tie rod at both ends as shown in Figure 9 and 10. If necessary, the chain
can be shortened. If it need to be lengthened, make sure to use same type of chain.
