14
Skystream hybrid 6
TM
Installation Manual, Rev A
mOtOr/gearbOx inStallatiOn
18. Remove the enclosure cover by removing the two cover bolts. Place
the motor/gearbox in the enclosure as shown in Figure 10. loosely
insert the four 5/16”-18 x 5/8” bolts, flat washers and lock washers
from the motor/gearbox hardware. Install the chain tensioning bolt
(5/16”-18 x 2-1/4”) and flat washer (do not tighten).
19. The solar tracker top cover must be slid into place and installed prior
to installing the Skystream 3.7
TM
onto the top of the tower. Once the
turbine is installed, it will not be possible to slide the solar tracker top
cover into position. After sliding the top cover into position, above
the upper welded ring but below the wire penetration hole or welded
nipple (if used), it can be left loose until final assembly of the solar
tracker. After fully assembling and orienting the solar tracker, the top
cover should be slid downwards and the stainless steel band clamp
should be tightened to keep it in position. The cover’s perimeter edge
lip, facing downwards, should overlap the top edge of the solar tracker
assembly approximately 1/2 inch.
alignment and chain inStallatiOn
19. Prior to installing the chain, the solar panels must be facing true South
(if in the Northern hemisphere) prior to power-up. True South dif-
fers from magnetic South. In order to find true South, the magnetic
declination for the installation location must be found. The magnetic
declination value represents the error between magnetic North and
True North for a specific location. This value can be represented as an
easterly (positive (+)) declination, or a westerly (negative (-)) declina-
tion. There are two ways to find the magnetic declination:
1. go to: http://www.ngdc.noaa.gov/geomagmodels/declination.
jsp, enter the zip code for the installation location and click “get
location.” Then click “Compute declination” and find the declina-
tion in the lower box.
2. looking at the following chart, use the blue and red lines to find
the approximate magnetic declination for the installation location.
These values vary slightly from year to year, but this chart is suf-
ficient for an approximate value.
MAGNETIC DECLINATION FOR THE U.S. - 2010
Contour Interval: 1 Degree (Positive declinations in blue, negative in red)
Figure 10
Summary of Contents for Skystream Hybrid 6
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