Skystream hybrid 6
TM
Installation Manual, Rev A
9
6. Slide the jig up, towards the top of the tower, to provide access to the
contact marks you just made. Using a suitable grinder, remove the gal-
vanizing from the surface of the tower sidewall at the locations of the
contact marks. Remove only enough surface material to permit proper
tack welding of the tower rings to the tower.
7. Slide the jig and tower rings back into place and check the fit. Once
proper fit and location is confirmed, tack weld the upper and lower sur-
faces of each ring to the tower. welding should not be performed with
any wiring inside the tower, to avoid heat damage to the wire’s insula-
tion. Once the welding has cooled, remove any splatter which might
have landed on the surfaces of the tower rings. brush or spray the
welded areas with a protective coating such as ZRC Cold galvanizing
Compound (or equivalent).
8. Remove the welding alignment jig rods and store that kit for future use.
9. Using the hole mark you made earlier, and ensuring that it is located
on the North side of the tower, drill a hole for your cord grip or strain
relief fitting. The diameter of the hole will depend upon the size of your
specified electrical cable and your grounding wire, and the fitting you
select. In most cases, the hole diameter need only be large enough
to permit the installation of the threaded or snap-in fitting (typically 1
inch). If using a threaded fitting, which is the most commonly accepted
type, it may be necessary to tape the nut and a suitable wrench to a
4-foot extension pole with which you can reach the hole location from
either the top of the tower section (for a 45-19hd) or the bottom of
the tower section (for a 45-19).
In some cases, your AhJ may require a female fitting welded to the
tower (as shown here) in which case the drilled hole diameter may be
as large as 1 3/8 inches:
If a welded nipple is required by your AhJ, the solar tracker top cover
should be slid into place between the welded rings and the nipple loca-
tion before the nipple is welded into position.
This wire penetration hole, in the location/s described, is acceptable
and will not affect your tower warranty. but, other holes (especially any
in the bottom 5 feet of the tower) are not permitted.
Summary of Contents for Skystream Hybrid 6
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