6.5
Firmly tighten the chain with the tensioning
screw. Use the supplied tensioning tool. Do
not over-tighten. If the shaft diameter is too
large the chains can be extended with
extension chains.
Adjust the height of the sensor by sliding it on
the posts until a line of sight is obtained for
both lasers. Secure its position by locking
both clamping devices on the back of both
units