Aimco Brakes Freedom3 PRW Sqnet User Manual
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[email protected] 31 Once “Production” tab is selected on the bottom part of the window will appear 2 icons: Edit new tightening program Delete tightening program Click on “Edit” icon to create a new tightening program.
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32 PRW mode working with SQnet FTA
A new window appears:
Note
User has to fill all parameters in order to set the correct tightening operation, please see the table
in the next page.
[email protected] 33 Fields and Meaning Table for “Freedom wrenches tightening program definition” General Data Tab: Fields Meaning Tightening Type In this combo box user must choose the right strategy to use during the tightening: Torque + Angle; Torque with Angle Monitoring; Torque + Angle CCW; Torque with Angle monitoring CCW; Yield; Yield + Angle. See next paragraph for more details Operation Type In this combo box user must indicate which operation he has to do during the tightening: tighten; loosen; Loosen and Tighten; Bidirectional. Station Id Here , user can write the identification number of the station where the joint is located. This field is not mandatory Nominal Torque In this field, user must write the torque target to reach during the tightening. Nm (Measure Unit) Clicking on this combo box, user can change the measure unit, actually the measure available are: cNm; Nm; kgfm; ozf.in; kNm; lbf.ft; lbf.in Class (torque) In this combo box is possible to select tolerance classes for the tightening strategy. If user wants to create a new one, click on “+”and a new window will appear, fill all fields and press “confirm” to save it. Min and Max Torque =f user doesn’t want to define tolerance limits by Class combo box, also it’s possible to insert upper (max) and lower (min) limits manually writing the values in both fields. Threshold =t’s the torque value where Freedom3 starts to count the angle. Nominal Angle =t’s the angle target value that user has to reach during the tightening.
34 34 PRW mode working with SQnet FTA Fields Meaning Class In this combo box is possible to select tolerance classes for the tightening strategy. If user wants to create a new one, click on “+”and a new window will appear, fill all fields and press “confirm” to save it. Min and Max Angle =f user doesn’t want to define tolerance limits by Class combo box, also it’s possible to insert upper (max) and lower (min) limits manually writing the values in both fields. Min Angle to Min Torque This parameters is used to inform operator when he is tightening a screw already tighteneT (only for PRW firmware version). User has to fill the degree value and Fredoom
[email protected] 35 Fields Meaning Un-Tightening Angle This is a negative angle parameter(Counter Clock wise Angle). Available only for PRW firmware version. Freedom³ realizes that joint is un-tightened only if, during the “unscrewing”, once overtake the open start cycle, the angle read at the end of Un; tightening is higher than 1.5
36 36 PRW mode working with SQnet FTA Tightening Strategies Torque + Angle Selecting this strategy in “General data” tab of “Freedom wrenches Tightening program definition”, user has to tighten the joint, reaching a specific torque “Threshold”, Freedom³ starts to count the angle, user must continue to tighten up to getting the nominal Angle value (user can understand easily when is getting the nominal value watching the display or the 2 rows of led on the long sides of the electronic/display case). The result will be considered “OK” if the angle and torque values will be in the tolerances (inside the green window). The main parameters for statistic is angle value (wrench collects all time angle and torque values). Note Torque + Angle CCW strategy is the same program but for left-handed joints. CCW-> Counter Clock Wise
[email protected] 37 Torque with angle monitoring Selecting this strategy in “General data” tab of “Freedom wrenches Tightening program definition”, user has to tighten the joint, reaching a specific torque “Threshold”, Freedom³ starts to count the angle, user must continue to tighten up to getting the nominal Torque value (user can understand easily when is getting the nominal value watching the display or the 2 rows of led on the long sides of the electronic/display case). The result will be considered “OK” if the torque and angle values will be in the tolerances (inside the green window). The main parameters for statistic is torque value (wrench collects all time angle and torque values). Note “Torque with angle monitoring CCW” is the same strategy but for left-handed joints. CCW -> Counter Clock Wise
38 38 PRW mode working with SQnet FTA Yield Selecting this strategy in “General data” tab of “Freedom wrenches Tightening program definition”, Freedom³ will detect automatically the yield point, advising by sound and vibration the user and showing on the display Torque and angle value at Yield point. In practice, User has to tighten the joint till the wrench will recognize the Yield point. In case the Yiled point is not recognized, Freedom³ will display an error message. The Angle value at Yield point is counted from the “Threshold” torque value. The result will be considered “OK” if the angle and torque values will be in the tolerances (inside the green window). In this tightening strategy both parameters torque and angle values will be considered for statistic charts (wrench collects all time angle and torque values).
40 40 PRW mode working with SQnet FTA Fields And Meaning Table for “Freedom wrenches tightening program definition” Tool Tab: Fields Meaning Tool Nr. =t’s the identification number of the tool (end fitting) Torque Correction Factor =t’s a torque factor. User must fill this field only if on the wrench is plugged an extension that modifies the original calibration length. See figure below to calculate the factor< Angle Correction Factor =t’s an angle factor. User must fill this field Flexion Correction Factor =t’s the angular error due to the extension tool. user must measure it using a protractor or a rotary transducer mounted at the end of the extension (close to the joint) and see the different between the angle reading of the wrench and the angle reading of the protractor or the rotary transducer. Example if the different is 3