Bahco BCL31IW1 Betriebsanleitung Seite 13

starting your job, always perform a test operation to determine the proper tightening time for
your screw. When tightening a standard nut in a steel plate, the proper tightening torque can be
obtained in an extremely short time (approx. 0.1-0.2 seconds).
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Turn the machine off as soon as the impact sound is heard. When tightening nut M6 or smaller,
carefully adjust pressure on the main switch so that the nut is not damaged.
8. The tightening torque is affected by a wide variety of factors including the following. After tightening
always check the torque with a torque wrench.
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When the battery pack is discharged almost completely, voltage will drop and the tightening
torque will be reduced.
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Driver bit or socket bit: Failure to use the correct size driver bit or socket bit will cause a reduction
in the tightening torque.
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F or driving a bolt: Even though the torque coefficient and the class of bolt are the same, the
proper tightening torque will differ according to the diameter of the bolt.
9. Even the diameter of the bolt are same, the proper tightening torque will differ according to the
torque coefficient, the class of the bolt and the bolt length.
10. The manner of holding the machine or the material of driving position to be tightened will affect the
torque.
Installing Or Removing Hook
Install a hook on either left or right side of the tool.
Please see the following instruction.
1. Installing Hook:
Use T10 bit size and tighten
in clockwise.
2. Removing Hook:
Use T10 bit size to loosen the hook.
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