VG412
23
24. Turn the hand knob until tool bits contact the pipe at the highest point and add 1.5 to 2 turns on the
knob for preload.
25. Plug in the power cord and proceed with the groove. The blade will feed automatically, and will stop
grooving when it runs out of preload. Stop the tool and add additional preload to complete the groove.
The groove is finished when the depth stops on groove blade holder contact with the pipe and
makes a mark 360 degrees around the pipe.
26. Stop the tool, disconnect the power cord. Retract the grooving tool bits, and check the groove
diameter before removing the tool.
Figure 25
Summary of Contents for VG412
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