Makita 6906 Instruction Manual - Page 7

Browse online or download pdf Instruction Manual for Power Tool Makita 6906. Makita 6906 13 pages. Makita 6906 impact wrench: specifications
Also for Makita 6906: Parts Breakdown (3 pages), Instruction Manual (8 pages), Instruction Manual (20 pages), Instruction Manual (7 pages), Instruction Manual (8 pages)

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MAINTENANCE

1. Limit mark

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. Voltage

Voltage drop will cause a reduction in the fastening

torque.

2. Socket

•

3. Bolt

•

4. The use of the universal joint or the extension bar some-

what reduces the fastening force of the impact wrench.

Compensate by fastening for a longer period of time.

5. The manner of holding the tool or the material of driving

position to be fastened will affect the torque.

CAUTION:

•

Always be sure that the tool is switched off and

unplugged before attempting to perform inspection or

maintenance.

001145

Remove and check the carbon brushes regularly. Replace

when they wear down to the limit mark. Keep the carbon

brushes clean and free to slip in the holders. Both carbon

brushes should be replaced at the same time. Use only iden-

tical carbon brushes.

Failure to use the correct size socket will cause a

reduction in the fastening torque.

A worn socket ( wear on the hex end or square end )

will cause a reduction in the fastening torque.

Even though the torque coefficient and the class of

bolt are the same, the proper fastening torque will

differ according to the diameter of bolt.

Even though the diameters of bolts are the same, the

proper fastening torque will differ according to the

torque coefficient, the class of bolt and the bolt

length.