WHITE PAPER FGC PRESET CAM OVER PRECISION TORQUE WRENCH
Comparative Wrench Mechanism
Click Wrenches
Cam-Over Wrenches
TORQUE
TORQUE
SET TORQUE VALUE
PRESET TORQUE VALUE
APPROXIMATE 3º MOVEMENT
APPLIED TORQUE
APPLIED TORQUE
Resets when pressure is released (Length dependent)
Reset automatically (Non-length dependent)
Figure 4
Preset Cam-Over Torque Wrench Improves Productivity Modern, effective preset torque wrenches improve productivity by guaranteeing that the correct torque value is consistently applied to each fastener. Preset cam-over wrenches are ideal for fastening applications where operators repeatedly assemble parts at the same torque setting (see Figure 5). A preset torque wrench is similar to setting an alarm clock to signal the achievement of a selected time. The wrench is pre-set to the application’s required torque value. The tool signals the operator once torque is achieved. A preset torque wrench does not feature an external torque adjustment scale. These tools have an internal torque adjustment mechanism for setting the torque value and must be preset internally using a hex key and a torque analyzer.
The locking mechanism prevents incidental adjustments or the operator tampering with the torque setting. Once the tool is set the wrench’s end cap is sealed with a calibration sticker and is now ready to be used for tightening fasteners. However, if the preset torque value needs to be changed for new fastening application the flexible preset tool can easily be adjusted to a new preset torque value.
Figure 5
5
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