PNEUMATIC TOOL CONTROLLER

摘要

A controller is disclosed for pneumatic tools such as tools for driving wheel nuts or the like. The controller includes means for measuring rate of air flow to the tool and means for comparing the air flow to a first threshold. The controller includes means for timing the air flow and means for comparing to a second threshold, a duration of time that the air flow remains above the first threshold. The controller includes means for determining that the tool has reached a preset torque and means for producing a warning when the duration of time is below the second threshold and the determining means indicates that the tool has reached the preset torque. A method of operating a pneumatic tool is also disclosed.