[RE-wrenches] Need help to get power torque wrench

[Jason Lombard]

ho!

On Wed, Nov 12, 2008 at 5:43 PM, Jeff Clearwater, Village Power Design <
jeffc at villagepower.com> 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 <daryl_solar at yahoo.com>
> 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
>
>
>
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> --
> Jason Lombard
> Open Hand Solar LLC.
> HC74 Box13
> Pecos, NM. 87552
> 505 795 8646
>
>
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> --
>
> ~~~~~~~~~~~~~
> 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
> gosolar at villagepower.com
>
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-- 
Jason Lombard
Open Hand Solar LLC.
HC74 Box13
Pecos, NM. 87552
505 795 8646
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