How do I adjust a Snap ON split beam torque wrench

[DickDeegan]

Hello. I am a newbie on this site although I have been a member on the Model A Fordbarn site for years.

I have a Snap On Split beam torque wrench which needs adjusting. I have a digital torque adaptor and find that the Snap On Torque wrench is our of calibration. When I dial 60 ft-lbs on the wrench, I am actually getting about 70 ft-lbs. The wrench is 1/2" drive and is about 20 years old and has never been calibrated.

It has two small screw type (about 1/4" in diameter) fasteners on the side beside the dial which I assume are there for adjustment. The fasteners have two small holes in each to allow turning.

Do I just turn these to adjust? Do I remove these and is there an adjustment internally?

Any help will be much appreciated.

****

 

[Buckgnarly]

I send mine in. How do you know the digital adaptor is accurate?

 

[rsanter]

Look at what the tolerance is for the electronic adapter. Most of the cheap ones have a wider tolerance than the actual quality torque wrenches.
My SO guy has a torque tester attached to the wall of his truck so people can check or verify they wrenches
Send it in for certified testing is the best thing to do

Bob