ho! On Wed, Nov 12, 2008 at 5:43 PM, Jeff Clearwater, Village Power Design < [EMAIL PROTECTED]> wrote:
> Hey Darryl, > > I agree with Jason. We've done some commercial S5 systems and we > pre-tighten with a cordless driver and then two guys follow with a couple of > manual torque wrenches - it takes but a few seconds to turn the final 1/2 > turn to the right torque - felt and confirmed by human feel and eyes. We > used digital beeping torque wrenches for a while but they would eventually > fail. Our tool of choice now is a 1/4" drive hand held good - ole "click" > type torque wrench. Worth the very little bit of extra time in my book to > know it's done right. > > Jeff Clearwater > NorthEast Solar/Village Power Design > > > > > > > Hello Darryl, > I am a big fan of manually tightening all bolts and panel clips on any > array. I have done this on a MW tracker and racking systems on schools, > which were checked by a special inspector who required them to be hand > torqued and yes it's a lot, but in many peoples minds hand tightened is > worth it. I do know folks who use a cordless drill and turn the setting down > so as not to strip bolts and then go through and torque by hand. > > Mostly this is a personnel opinion on the process and wanted to relay my > experiences. > > On Tue, Nov 11, 2008 at 6:04 PM, Darryl Thayer <[EMAIL PROTECTED]> > wrote: > > Hi all, I need advice > I am soon starting a 1000 module system, uning top down mounts, What power > tools will tighten to torque specification? I will want to tighten each SS > 1/4" nut on bolt to proper specs. This is about 2000 bolts, so i want a > power tool, either air or battery electric, or electric that will tighten to > specification. > > Thanks Darryl > > > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > > > > -- > Jason Lombard > Open Hand Solar LLC. > HC74 Box13 > Pecos, NM. 87552 > 505 795 8646 > > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > > > -- > > ~~~~~~~~~~~~~ > Jeff Clearwater > Senior Design Engineer > NABCEP (tm) Certified Solar PV Installer > http://www.nabcep.org/ > Village Power Design > Turnkey Solar Design & Installation for the Commercial Sector > http://www.villagepower.com > [EMAIL PROTECTED] > > Voice: 413-259-3776 > Fax: 413-825-0703 > 65 Schoolhouse Rd > Amherst, MA 01002 > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > > -- Jason Lombard Open Hand Solar LLC. HC74 Box13 Pecos, NM. 87552 505 795 8646
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