7
04
Support
Block
Door
Track
Header Wall
High Point of
Door Travel
5cm Clearance
01
STEP 1.
Remove packing materials.
STEP 2.
Place the rail support on the power head. Align rail and
power head and slide rail over drive shaft & retaining lugs.
Fasten with 4 nuts.
STEP 3.
Adjust the tension of chain/belt at end rail. Turn clockwise
to tighten and counterclockwise to loosen.
NOTE: Improper tension will result in abnormal opener
operation.
03
02
Assembly 01
Loosen
Tighten
1/4” -20Hex Flange
Nuts (4)
Rail-to-Head Bracket
2
3
1
Rail
STEP 4.
Install head bracket. The height is seen in fig.5 Head
bracket position is higher than header wall and mark the
horizontal line.
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