29
CLEARSPAN
™
GREENHOUSES
Revision date: 10.03.14
3. Select the aluminum channel and drill a 3/8" hole
through the channel approximately 2" from the end and
attach a threaded rod using a 3/8" nut on each side of
the channel.
2"
TWIST-OF-THE-WRIST ASSEMBLY (continued)
4. With lower end of the channel approximately 4" off the
ground, position the channel along the rafter at the end
of the building where the Twist-of-the-Wrist assembly
will be located.
5. Secure the upper end of the channel by drilling a 3/8"
hole through the end rafter and attach as shown. The
lower end of the channel will "float" and is not attached.
NOTE:
Install a flat washer between the nut and the
end panel.
6. Select the bearing bracket and attach the bearings as
needed. (In some instances, the bearings may come
already attached.) Assemble as follows:
NOTE
: Single bearings are attached to the sides of
the bracket and double bearings to the middle portion
of the bracket. Use 1/4" hex bolts and locknuts as
needed. Install a flat washer on both sides of each
bearing to insure proper operation of bearings and the
assembly.
7. Install the longer bolts with bearings on the side of the
bracket that has the two holes. Install these
before
installing the double bearing assembles. See the
figures below.
8. For the spacers on the long bolts, insert a 5/16" nut
over each bolt.
These nuts are used as spacers only.
5/16" Nut
5/16" Nut
9. Slide the Twist-of-the-Wrist mounting plate over the
long bolts and secure the plate with two lock nuts.
Lock Nuts
10. Attach the Twist-of-the-Wrist gearbox to the mounting
plate using hex head bolts.
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