Makita TW0350 Owners Manual - Page 7

Operation - test

Get Makita TW0350 PDF manuals and user guides View all Makita TW0350 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 7 highlights

OPERATION Standard bolt 004009 Fastening torque (N.m) 300 250 200 150 100 50 M20X80 (3/4"X3-1/8") M16X80 (5/8"X3-1/8") M12X80 (1/2"X3-1/8") 0 0.5 1 1.5 2 2.5 3 Fastening time (S) Fastening torque (N.m) High tensile bolt 004010 300 250 M16(F10T) 200 (5/8") M16 (5/8") 150 M12X80 (1/2"X3-1/8") 100 M12 (1/2") 50 0 1 23 4 56 Fastening time (S) 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. 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: • When fastening screw M12 (1/2") or smaller, carefully adjust pressure on the switch so that the screw is not damaged. • Hold the tool pointed straight at the bolt or nut without applying excessive pressure on the tool. • If you fasten the bolt for a time longer than shown in the figures, the bolt or the socket may be overstressed, damaged, etc. Before starting your job, always perform a test operation to determine the proper fastening time for your bolt. Especially for the bolt over than M12 (1/2"), perform the above test operation to prevent the trouble on socket or bolt, etc. 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. 7

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
7
OPERATION
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 fas-
tening time is shown in the figures.
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:
•
When fastening screw M12 (1/2
”
) or smaller, carefully
adjust pressure on the switch so that the screw is not
damaged.
•
Hold the tool pointed straight at the bolt or nut without
applying excessive pressure on the tool.
•
If you fasten the bolt for a time longer than shown in the
figures, the bolt or the socket may be overstressed,
damaged, etc. Before starting your job, always perform a
test operation to determine the proper fastening time for
your bolt. Especially for the bolt over than M12 (1/2
”
),
perform the above test operation to prevent the trouble
on socket or bolt, etc.
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.
0
0.5
1
1.5 2
2.5
50
100
150
200
250
300
Standard bolt
Fastening torque (N.m)
Fastening time (S)
M12X80
(3/4
”
X3-1/8
”
)
(5/8
”
X3-1/8
”
)
(1/2
”
X3-1/8
”
)
3
M16X80
M20X80
004009
0
1
2
3
4
5
50
100
150
200
250
300
M16
M16(F10T)
High tensile bolt
Fastening torque (N.m)
Fastening time (S)
(5/8
”
)
(5/8
”
)
(1/2
”
X3-1/8
”
)
(1/2
”
)
M12X80
M12
6
004010