Makita 6991D 사용 설명서 - 페이지 12

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Makita 6991D에 대해서도 마찬가지입니다: 사용 설명서 (17 페이지), 기술 정보 (5 페이지)

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Hold the tool firmly and place the point of the driver bit in the screw head. Apply forward

pressure to the tool to the extent that the bit will not slip off the screw and turn the tool on

to start operation.

NOTE:

When fastening screw M8 or smaller, carefully adjust pressure

the switch trigger so

Hold the tool pointed straight at the screw.

If you tighten the screw for a time longer than shown in the figures, the screw or the

point of the driver bit may be overstressed, stripped, damaged, etc. Before starting your

job, always perform a test operation to determine the proper fastening time for your

screw.

that the screw is not damaged.

The fastening torque is affected by a wide variety of factors including the following

After fastening, always check the torque with a torque wrench.

1. When the battery cartridge

is discharged almost completely, voltage will drop and the

fastening torque will be reduced.

2. Driver bit or socket bit

Failure to use the correct size driver bit or socket bit will cause a reduction in the

fastening torque.

Even though the torque coefficient and the class of bolt are the same, the proper fas-

Even though the diameters of bolts are the same, the proper fastening torque will dif-

4. The manner of holding the tool or the material of driving position to be fastened will

5. Operating the tool at low speed will cause a reduction in the fastening torque.

3. Bolt

tening torque will differ according to the diameter of bolt.

fer according to the torque coefficient, the class of bolt and the bolt length.

affect the torque.