EDR4 1169 G 10/03
8
Maximum height
marking on header
Header bracket mounting
Header
Mark highest point
onto header
Header bracket
Max door
travel height
Door
opening
centre line
Two lag screws
header above the door and mark the door itself
at the top edges.
STEP 4:
Check the installation height of the opener.
Slowly open the door and observe the point at
which the top edge of the door is closest to the
ceiling. Measure the height of the top edge of
the door from the floor of the garage at this point.
You may have to clamp the door in position or
use blocks to hold it.
STEP 5:
Close the door again and mark this maximum
door height onto the header above the top edge
of the door. (On tilt doors with tracks, this maxi-
mum height might be as low as the top edge of
the closed door.) If a sectional door torsion bar
or spring is in the way, mark the next clear space on the wall above. Extend the
door centre line up to intersect with the new height line.
Additional setup for trackless tilt doors (jamb fittings) only
Mark a horizontal line 300 mm above this maximum door height line. If there is insufficient
space above to allow the line to be 300 mm above the maximum height, then draw the line
80 mm below the ceiling. Extend the door centre line up to intersect with the new height line.
STEP 6:
Fit the header bracket to the header above the top of the door. The header bracket
must be attached to a rigid part of the garage such as a beam, with the bottom
edge of the bracket no lower than the height line that has just been marked. The
centre line of the door must align with the centre line of the header bracket. Two
lag screws are sufficient to hold the bracket to the header. Pre drill the screw
holes with a
1
/
4
inch bit.
STEP 7:
Place the opener assembly in the centre of the garage floor, resting on its styrofoam
or cardboard packing to protect the power head from scratching by the garage
floor.
STEP 8:
Lift the return pulley assembly up to the header bracket and attach by pushing the
clevis pin through both the header
bracket and the return pulley assem-
bly. Fit the clevis pin clip to secure the
clevis pin.
STEP 9:
Lift the power head end of the opener
to the ceiling. Add temporary support
so that the pole is level to the garage
floor. Temporary support can be by a
rope from a joist or by resting the unit
on top of a stepladder. Open the door.
STEP 10: Line up the centre of the pole with the
marked centre line of the door.
