Re: Wheels' Lug nuts loosened unexpectedly

E Meyer <epmeyer50@[EMAIL PROTECTED]
> wrote in
news:C4A64384.32ACC%epmeyer50@[EMAIL PROTECTED]
 

> 
> 
> 
> On 7/18/08 10:44 AM, in article
> 81b8786d-92f6-4e56-87bc-d712c650b609@[EMAIL PROTECTED]
> "Built_Well" <Built_Well_Toyota@[EMAIL PROTECTED]
> wrote:
> 
>> RT wrote:
>>> 
>>> I was just going to say, is it the same torque wrench ?
>>> Has it been properly stored ? Used a lot in between ?
>> =======
>> 
>> Yep, it's the same torque wrench, stored with the numerical
>> torque  selector  at  the  lowest  setting,  as  Tegger
>> recommended, contrary to the Sears salesman who recommended
>> storing at 20 foot-pounds.  IIRC the salesman said there was
>> some memo floating around recommending that the Craftsman torque
>> wrenches be stored at 20 foot-pounds to prevent damage to the
>> mechanism, but I think Tegger is probably right, and have
>> stored my wrench at zero Newton-meters ever since.
>> 
>> It is interesting, though, that almost all the torque wrenches
>> I've seen at Sears (and the Huskys at Home Depot and the Kobalts
>> at Lowe's) have all been set to a torque of between 20 and 30
>> foot-pounds while they're sitting on the shelf waiting to
>> be bought.
>> 
>> But I have faith in Tegger, and store my wrench at zero.
> 
> The users manual that came with my Home Depot wrench specifically said
> to store it set to 25 foot-pounds and specifically warned against
> storing it at zero.
> 
> 



The manual that comes with my Sears MicroTork says this:
"When the wrench is not in use, keep it set below 25% of capacity. If you 
leave the wrench set at a reading of more than 50% capacity for more than
a 
few hours, set the wrench at its lowest setting and leave it there for a 
few minutes before using it again."

I infer from this that the lower the storage setting the better, although 
benefits of storing at 0% capacity are apparently not significantly
greater 
than storing at 24%.

Since it's clearly being left to me to decide between 0% and 24% as I see 
fit, I see fit to impose zero deformation on the spring in my torque
wrench 
rather than some deformation. Except for, of course, the danger that I may

loosen that famous locknut unless I'm very careful or stop turning a click

or three short of the bottom...


-- 
Tegger