Thehookslidesintoahookshapedslotonthetopedgeoftheracks.Thev-rollertsintoavshaped
grove on the bottom edge of the rack. The gear meshes with the rack teeth on the outside face of the
rack.
Start the top hook on the side column into the hooked slot on the top gear rack on the side of the
room. Start the bottom hook on the side column into the hooked slot on the bottom gear rack on the
side of the room. Slide both top and bottom in until the 1
st
gear tooth is just touching the 1
st
tooth on
the end of both the top and bottom racks. The v-rollers should be close to touching the v shaped slot
in the bottom of both racks.
5. Push evenly on both the top and bottom of the side column, engaging the gear teeth into the rack
teeth of both top and bottom racks at the same time. Continue to slide the side column onto the
racksuntiltheweatherstriponthefrontfaceofthesidecolumnisushwiththeendoftheracks.
Bothtopandbottomracksshouldcomeushatthesametime.Iftheracksare1toothoutoftime
with each other there will be a 3/16 difference in the end position of the racks.If both top and
bottomareush,continue.Ifbothtopandbottomarenotush,thenpullthesidecolumnoutto
disengagethegearsandrepeatuntilbothtopandbottomgearracksareushatthesametime.
6. Push the side column along the racks until it is close to the outside face of the wall.
7. Follow steps 8 through 13 for motor replacement (Motor replacement 2-3).
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