Hitachi DV 18DV, DV 14DV instruction manual HOW to Select Tightening Torque

English

HOW TO SELECT TIGHTENING TORQUE

Table 5

Cap	Tightening torque		Operation example
position
1	Approximately 9 in-lbs. (10 kg-cm)
3	Approximately 15 in-lbs. (17 kg-cm)		Machine screw
			tightening.
7	Approximately 23 in-lbs. (26 kg-cm)
			Screw tightening for soft
13	Approximately 35 in-lbs. (40 kg-cm)		wood material.
17	Approximately 43 in-lbs. (49 kg-cm)		Screw tightening for
22	Approximately 52 in-lbs. (60kg-cm)		hard wood material.
	High speed: approximately 78 in-lbs.
		(90 kg-cm)(DV14DV)
	approximately 96 in-lbs.
		(110 kg-cm)(DV18DV)	Thick screw tightening.
	Low speed: approximately 346 in-lbs.		When used as a drill.
		(400 kg-cm)(DV14DV)
	approximately 400 in-lbs.
		(460 kg-cm)(DV18DV)
			Use for drilling bricks
			and concrete blocks.

NOTE:

The selected content shown in Table 5 indicates the differences according to screw type, screw size and material used.

CAUTION:

●While operating the Cordless hammer drill, take care not to lock the motor. If the motor is locked, immediately turn the power off.

If the motor is locked for a while, the motor or battery will be burnt.

●Do not tighten too strongly as the screw heads will be damaged.

20