6
M12
M10
M8
80
60
40
20
0
(204)
(408)
(816)
(612)
1.0
2.0
3.0
Standard bolt
N m
(kgf.cm)
M12
M10
M8
(S)
Fastening time
Fastening torque
Proper fastening torque
.
100
120
(1224)
(1020)
M14
M14
009619
M10
M8
80
60
40
20
0
(204)
(408)
(816)
(612)
1.0
2.0
3.0
High tensile bolt
N m
(kgf.cm)
M10
M8
(S)
Fastening time
Fastening torque
Proper fastening torque
.
100
(1020)
009620
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:
•
Use the proper bit for the head of the screw/bolt
that you wish to use.
•
When fastening screw M8 or smaller, carefully
adjust pressure on the switch trigger so that the
screw is not damaged.
•
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.
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.
Driver bit or socket bit
Failure to use the correct size driver bit or socket
bit will cause a reduction in the fastening torque.
2. 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.
3.
The manner of holding the tool or the material of
driving position to be fastened will affect the
torque.
4. Operating the tool at low speed will cause a
reduction in the fastening torque.
MAINTENANCE
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before attempting to perform inspection
or maintenance.
•
Never use gasoline, benzine, thinner, alcohol or
the like. Discoloration, deformation or cracks may
result.
Replacing carbon brushes
Fig.8
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.9
To maintain product SAFETY and RELIABILITY, repairs,
carbon brush inspection and replacement, any other
maintenance or adjustment should be performed by
Makita Authorized Service Centers, always using Makita
replacement parts.
