On 2014-08-12, AMuzi > wrote:
> On 8/11/2014 10:06 PM, dsi1 wrote:
>> On 8/11/2014 4:39 PM, Michael Wilson wrote:
>>> I'm putting the caliper back on the anchor plate. From
>>> what I can tell, the torque is 47 pounds. I managed to
>>> sheer the bolt and now have to go to the hardware store to
>>> get another one. Am I misreading the specs? (see pic)
>>> Maybe I didn't hear the click from the Autozone loaner
>>> torque wrench.
>>>
>>> http://postimg.org/image/49bjhmnnd/
>>>
>>> Thanks!
>>>
>>
>> 47 lb-ft is not that tight. You must have just cranked that
>> torque wrench to high hell. If you have no feel for torque,
>> my suggestion is that you start at 20 lb-ft and then work
>> your way up and learn the feel of the amount of torque that
>> it takes. OTOH, you should learn the proper amount of torque
>> needed by the size and material of the fastener. These days,
>> I don't need no stinkin' torque wrench.
>
> If you have employees who "don't need a torque wrench", put
> a dial wrench in a vise with the scale facing away and have
> them show you various torques. The other guys will almost
> laugh and then they get quiet too.
>
> For the fasteners they do all day long they are pretty good
> but anything unusual will be way off.

Calibrated fingers


anyways most fastener joints work for a wide range of torque values,
much wider than a manual or assembly spec will give. That's why one can
get away with a calibrated fingers approach. The trick is knowing when a
torque wrench is really needed and when it's just a suggestion.