GARAGE DOOR OPENERS USER MANUAL
5
Metal Cham
Slide block
Assemble the front and middle rail with the
junction, and make sure is located at the middle
of the protruding point.
Assemble the back and middle rail with another junction,
and make sure is located at the middle of the
protruding point.
Remove the nut and the spring in the (4) Front pulley bracket. Make sure the metal chain is placed in the gap of the
pulley on the two sides. Insert the (2) Front hold bracket against the rail. Use the spring and the nut to adjust the
tightness of the (5) Metal chain.
3.2 Rail assembly
25
25
6
4
2
4
5
Complete
Complete
Complete
1
2
3
4
8
1. Put the (6) Slide block in the rail track, and put the (5) Metal chain in the rail track.
Make sure the metal mortise part is on right side of the rail.
2. Cross the (5) Metal chain through the (4) front pulley bracket, the (3) rear pulley
bracket, and the (6) Slide block. The metal mortise part should be placed in the
middle of the whole rail.
3. Connect the (5) Metal chain.
5
6
5
6
18
