How To Select Tightening Torque - Hitachi DV 14DVA Manuel D'instructions

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NOTE:
The numbers shown in Table 5 are references and vary according to type and hardness of
material to be drilled or screwed and sharpness of drill bit.

HOW TO SELECT TIGHTENING TORQUE

Cap
position
1 Approximately 9 in-lbs. (10 kg-cm)
2 Approximately 17 in-lbs. (20 kg-cm)
3 Approximately 26 in-lbs. (30 kg-cm)
4 Approximately 35 in-lbs. (40 kg-cm)
5 Approximately 43 in-lbs. (50 kg-cm)
High speed: approximately 78 in-lbs.
Low speed: approximately 305 in-lbs.
NOTE:
The selected content shown in Table 6 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.
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Table 6
Tightening torque
(90 kg-cm)
(350 kg-cm)
———
Operation example
Machine screw tightening
Screw tightening for soft
wood material
Thick screw tightening When
used as a drill.
Use for drilling bricks and
concrete blocks.