Makita TW0200 instruction manual Operation

OPERATION

004236

Standard bolt

	200
	180			M16X80
(N.m)				(5/8”X3-1/8”)
	140
	160
torque	100						M16
	120
Fastening	40		M12X80			(5/8”)
			(5/16”X3-1/8”)
						(1/2”)
	80			(1/2”X3-1/8”)
	60		M10X80				M12
	20						M10
	0					(3/8”)
		1		2	3	4

Fastening time (S)

004237

High tensile bolt

	200
torque(N.m)			M12X80
	180
			(1/2”X3-1/8”)
	160
	140				M10X80
	120			(3/8”X3-1/8”)
Fastening	100						M12
	80					(1/2”)
	60						M10
	40					(3/8”)
	20
	0
		1		2	3	4	5

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 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 M10 (3/8”) 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 M10 (3/8”), 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.

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