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Hi I'm Dan Musick in this video we'll show you how to adjust the top fixture roller carrier
to seal the gap between the top section and the header
and jams. Here's how the hinges and door track work together.
The track slants in towards the jam as it approaches the floor.
The hinges are graduated so that the lowest roller is closest to the section
and the highest rollers furthest.
The hinges follow this sequence. If they're not in the correct order
numbered from the bottom 1,2,3, and so forth
you will not have a consistent gap.
First measure the gaps between the door and the jam.
You can either measure from the door jam to the outside of the door
or from the door jam to the inside of the door. Once you've taken the measurements
decrease the gap to 1/4" if your door frame allows for it.
To adjust for the gap on the top section you'll need to adjust the top fixture.
To do this loosen the nuts that secure the roller carrier to the top fixture
this will let the roller slide back and forth and allow you to adjust the top section.
To minimize the gap pull out the roller
pushing the door forward until you get a consistent gap
then tighten the bolts. Before using the opener
open the door manually to ensure that the top of the door
does not hit the opener rail. One thing that can happen when you adjust
the roller carrier is that as you open the door
the top of the roller binds in the track. This
can cause the hinge to break or wear prematurely. If this happens
you need to lower the top fixture on the door positioning it closer
to the hinge below it.
To do this remove the screws securing the fixture to the door
then lower the top fixture an inch or two
and secure the screws with a drill or impact wrench.
Next adjust and secure the roller carrier, notice that the roller
is closer to the section.
While this may solve the binding problem
it can also create another issue. If your garage does not have enough headroom
the top of the door may hit the cable drum.
This occurs because by moving the top fixture
you've changed the point at which the door pivots. So instead of turning almost
immediately when the top of the door hits the curve
it travels upwards a little further before turning. If this occurs
raise and secure the top fixtures high enough to prevent the top of the door
from hitting the open a rail or drums. If you find that you have to
relocate the top fixtures to their original positions
you have three options. One is to return the rollers to their original positions
and replace the top hinges periodically
or you can adjust the top roller carriers so there's a bigger gap.
This can be remedied by bending the tops at the vertical PVC stop molding
to seal the door. A third option
is to install low headroom top fixtures or double low headroom
tracks and accompanying hardware. You may prefer to have a professional do this
for you.
I'm Dan Musick, Thank you for watching!