Daspi ATIZA 1000N Manual De Usuario página 30

Garage door opener pre-installation kit
Remember that the inner side of the track must always be in
contact with the chain.
1- Join the track parts (1) together using the overlap part (2) as far as
they go.
2-
Hook the tensioner (1) onto the chain (2) and turn it 90º. Insert the
connecting element (6) and push the tensioner (1) through it. Place
ATIZA 1000N