Torque Wrench
- Thread starter c3po
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One could set the torque REALLY high and use it for this, but why not just use a long breaker bar, and NOT risk messing with the accuracy of the torque wrench (and saving it for tightening the lugs)??!
I have a question for Torque Wrenches too, when you store them are you supposed to turn them down to the lowest torque setting or can you just store them at whatever torque setting you used them last on.
A buddy of mine says if you don't turn it down you can mess up its' accuracy
A buddy of mine says if you don't turn it down you can mess up its' accuracy
Turn it down. You do not want to store it under tension.
I turn mine down, too, but I'm not sure if it makes makes any difference really.
Originally Posted By: Ursae_Majoris
Turn it down. You do not want to store it under tension.
This is what I've always heard as well (and what I ALWAYS do, to 0 lb. ft.).
Turn it down. You do not want to store it under tension.
This is what I've always heard as well (and what I ALWAYS do, to 0 lb. ft.).
You are correct........this time.
Straight from the CDI horses mouth:
http://www.cditorque.com/ ...under "Torque Facts"
* All mechanical torque wrenches are calibrated from 20% to 100% of full scale, therefore, they should never be used below or above those limits
* To determine which torque wrench capacity is best suited for an application, many factors must be considered. However, as a recommendation, use a torque wrench in the middle 50% of the overall capacity of the tool. This will result in longer tool life, ease of use for the operator and increased accuracy from "clicker" type torque wrenches
* Always grasp handle firmly in the center of the grip
* Approach final torque slowly and evenly
* Stop pulling wrench immediately when target torque is reached
* Never use a torque wrench to break fasteners loose
* Should be cleaned and stored properly
* Should always be stored at it’s lowest torque setting
* Wrenches should be re-calibrated if dropped. Should never be used in excess of it’s capacity
* Torque wrenches should be "exercised" a minimum of three times at 100% of full scale before use
* The wrench selected should be calibrated in the same torque units that are specified
* Use of a "cheater bar" will result in an inaccurate reading and can possibly damage the wrench
* Torque wrenches will last longer if reasonable care is taken. Always unwind handle to the lowest setting after each use. Do not attempt to lubricate the internal torque mechanism. Clean torque wrench by wiping, do not immerse. The wrench should be sent to a qualified calibration lab once every year or every 5000 cycles for re-calibration
Although, some of the "rules" (annual calibration) are for professionals. And, don't misinterpret the "50%" rule.
Straight from the CDI horses mouth:
http://www.cditorque.com/ ...under "Torque Facts"
* All mechanical torque wrenches are calibrated from 20% to 100% of full scale, therefore, they should never be used below or above those limits
* To determine which torque wrench capacity is best suited for an application, many factors must be considered. However, as a recommendation, use a torque wrench in the middle 50% of the overall capacity of the tool. This will result in longer tool life, ease of use for the operator and increased accuracy from "clicker" type torque wrenches
* Always grasp handle firmly in the center of the grip
* Approach final torque slowly and evenly
* Stop pulling wrench immediately when target torque is reached
* Never use a torque wrench to break fasteners loose
* Should be cleaned and stored properly
* Should always be stored at it’s lowest torque setting
* Wrenches should be re-calibrated if dropped. Should never be used in excess of it’s capacity
* Torque wrenches should be "exercised" a minimum of three times at 100% of full scale before use
* The wrench selected should be calibrated in the same torque units that are specified
* Use of a "cheater bar" will result in an inaccurate reading and can possibly damage the wrench
* Torque wrenches will last longer if reasonable care is taken. Always unwind handle to the lowest setting after each use. Do not attempt to lubricate the internal torque mechanism. Clean torque wrench by wiping, do not immerse. The wrench should be sent to a qualified calibration lab once every year or every 5000 cycles for re-calibration
Although, some of the "rules" (annual calibration) are for professionals. And, don't misinterpret the "50%" rule.
I wouldn't use it for that. To loosen lug nuts, I use a "star"(whatever they're called) or a ratchet w/ an open wrench on the end.
It is silly to use a torque wrench for removal of parts.
A pain in the derrier for absolutely no reason at all.
It is also a mistake to assume the take off torque is the same as the tightening torque.
A pain in the derrier for absolutely no reason at all.
It is also a mistake to assume the take off torque is the same as the tightening torque.
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