ACDelco ARI2060 Product Information Manual page 13

Bolt Size: Larger bolt diameters generally require higher fastening torque. Fastening
torque will also vary according to length, grade, and torque coefficient.
Material: The type of material and surface finish of the material will affect fastening
torque.
Fastening Time: Longer fastening time results in increased fastening torque. Using a
longer fastening time than recommended could cause the screws to be overstressed,
stripped or damaged.
NOTE
Continuous use in variable speed range is not recommended. It may
damage the switch and should be avoided.
NOTE
When change the position of the control button, making sure the variable
speed switch is released.
NOTE
The first time the tool is run after changing the direction of rotation, you
may hear a click on start up. This is normal and does not indicate a problem.
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