Table of Contents
Advertisement
Available languages
Available languages
OPERATION
For 6906 only
Always use the side grip (auxiliary handle) and firmly hold
the tool by side grip and switch handle during operations.
The proper fastening torque may differ depending upon
the kind or size of the bolt, the material of the workpiece
to be fastened, etc. The relation between fastening
torque and fastening time is shown in the figures.
(kg cm)
N m
700
(7140)
600
(6120)
500
(5100)
400
(4080)
300
(3060)
200
(2040)
100
(1020)
0
1
2
Hold the tool firmly and place the socket over the bolt or nut.
Turn the tool on and fasten for the proper fastening time.
NOTE:
•
Hold the tool pointed straight at the bolt or nut.
•
Excessive fastening torque may damage the
bolt/nut or socket. Before starting your job,
always perform a test operation to determine the
proper fastening time for your bolt or nut.
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
•
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.
3.
Bolt
•
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.
4.
The use of the universal joint or the extension
bar somewhat 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.
Rated voltage
For 6906
90% of rated voltage
Rated voltage
For 6905B
90% of rated voltage
3
4
5
6
7
MAINTENANCE
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before attempting to perform inspec-
tion or maintenance.
•
Never use gasoline, benzine, thinner, alcohol
or the like. Discoloration, deformation or cracks
may result.
Replacing carbon brushes
► Fig.5: 1. Limit mark
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 identical carbon brushes.
Use a screwdriver to remove the brush holder caps.
Take out the worn carbon brushes, insert the new ones
and secure the brush holder caps.
► Fig.6: 1. Screwdriver 2. Brush holder cap
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be per-
formed by Makita Authorized Service Centers, always
8
using Makita replacement parts.
(S)
OPTIONAL
ACCESSORIES
CAUTION:
•
These accessories or attachments are recom-
mended for use with your Makita tool specified
in this manual. The use of any other accessories
or attachments might present a risk of injury to
persons. Only use accessory or attachment for
its stated purpose.
If you need any assistance for more details regard-
ing these accessories, ask your local Makita Service
Center.
•
Sockets
•
Extension bar
•
Universal joint
NOTE: Some items in the list may be included in the
tool package as standard accessories. They may
differ from country to country.
5 ENGLISH
Advertisement
Table of Contents
