Bahco BCL33IW1 Operating Instructions Manual page 10

10. The tightening torque is affected by a wide variety of factors including the following. After
tightening always check the torque with a torque wrench.
•
When the battery pack is discharged almost completely, voltage will drop and the
tightening torque will be reduced.
•
Driver bit or socket bit:
Failure to use the correct size driver bit or socket bit will cause a reduction in the
tightening torque.
•
For 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.
11. 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.
12. The manner of holding the machine or the material of driving position to be tightened will
affect the torque.
Replaceable Carbon Brush
1. Replace the new carbon brush, while the motor is not rotated and the carbon brush is run
out. (Change the new motor after the carbon brush has been replaced 2~3 times).
2. Replacement procedure is as follows:
•
Loose the carbon brush panel counterclockwise by using slated bit. (Fig. 3).
•
Take out the carbon brush (Fig. 4).
•
Put the new carbon brush and carbon brush panel back into the housing in proper order.
(Fig. 5).
•
Lock the carbon brush panel back clockwise by using slated bit. (Fig. 6).
Fig. 3
Caution
Always be sure that the machine is switched off and is unplugged from the power outlet
removed before carrying out any work on the machine.
To maintain product safety and reliability, repairs, maintenance or adjustment should be carried
out by an authorized service center.
Fig. 4
• 10 •
Fig. 5 Fig. 6