Hitachi DB 3 DL [9/58] English
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Hitachi DB 3 DL [9/58] English

Hitachi DB 3 DL [9/58] English
English
8
䡬 Do not use with the clutch dial numeral between
“21” and the black line at the middle of the drill mark.
Doing so may cause damage (See Fig. 8).
7. Tightening torque adjustment
(1) Tightening torque
Tightening torque should correspond in its intensity
to the screw diameter. When too strong torque is
used, the screw head may be broken or be injured.
Be sure to adjust the clutch dial position according to
the screw diameter.
(2) Tightening torque indication (See Fig. 7)
The tightening torque differs depending on the type
of screw and the material being tightened.
The unit indicates the tightening torque with the
numbers “1, 5, 9 ... 21” on the clutch dial, and a black
dots. The tightening toque at position “1” is the
weakest and the torque is strongest at the highest
number.
(3) Adjusting the tightening torque (See Fig. 7)
Rotate the clutch dial and line up the numbers “1, 5, 9
... 21” on the clutch dial, or the dots, with the triangle
mark on the outer body. Adjust the clutch dial in the
weak or the strong torque direction according to the
torque you need.
CAUTION
䡬 The motor rotation may be locked to cease while the
unit is used as drill. While operating the driver drill,
take care not to lock the motor.
䡬 When setting the shift knob to “HIGH” (high speed)
and the position of the clutch dial is “17” or “21”, it
may happen that the clutch does not engaged and
that the motor is locked. In such a case, please set the
shift knob to “LOW” (low speed).
䡬 If the motor is locked, immediately turn the power
off. If the motor is locked for a while, the motor or
battery may be burnt.
䡬 Too long hammering may cause the screw broken
due to excessive tightening.
8. Switch operation
(1) Lock switch
The tool is equipped with a lock switch. To activate
the main switch lock, move the lock switch to the “䊲
LOCK” position. Move the lock switch to the opposite
position to operate the tool. (Fig. 9)
CAUTION:
Always set the lock switch to the “䊲 LOCK” position
when carrying or storing the tool eliminate
unintentional starting.
(2) Main switch
The main switch functions as a motor switch and
rotational direction selector switch. When the main
switch is pushed to “R” indicated on the main switch,
the bit rotates clockwise. When the main switch is
pushed to “L” indicated on the main switch, the bit
rotates counterclockwise. When the main switch is
released, the tool stops. (Fig. 10)
9. Using the light
The light lights when the light switch is pushed.
When the light switch is pushed again, the light is
turned off. (Fig. 11)
CAUTION:
Do not look directly into the light. Such actions could
result in eye injury.
10. Using in the Straight or Pistol Configuration
Use the tool in the straight configuration when using
in confined spaces. Use it in the pistol configuration
when using in other locations. Select the configuration
that best matches the tool application. When changing
the configuration, the tool will make a clicking sound
when it snaps into position. Bend (or extend) the tool
until the clicking sound is heard.
CAUTION:
When using the tool in the pistol configuration, do
not hold onto the bending portion of the tool when
returning to the straight configuration. Your finger or
other part of the hand may be pinched by the bend
ing portion resulting in possible injury (Fig. 12).
11. The scope and suggestions for uses
The usable scope for various types of work based on
the mechanical structure of this unit is shown in
Table 2.
Work Suggestions
Drilling
Steel
Use for drilling purpose.
Aluminum
Machine screw Use the bit or socket matching the screw diameter.
Driving
Wood screw Use after drilling a pilot hole.
Table 2
12. How to select tightening torque and rotational speed
Table 3
Use Cap Position
Rotating speed selection (Position of the shift knob)
LOW (Low speed) HIGH (High speed)
Machine screw 1 – 21
For 5 mm or smaller diameter
screws
Driving
Wood screw 1 –
For 3.5 mm or smaller nominal
diameter screws
Drilling
Metal
For drilling with a metal
working drill bit
For 3 mm or smaller
diameter screws

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English O Do not use with the clutch dial numeral between 21 and the black line at the middle of the drill mark Doing so may cause damage See Fig 8 7 Tightening torque adjustment 1 Tightening torque Tightening torque should correspond in its intensity to the screw diameter When too strong torque is used the screw head may be broken or be injured Be sure to adjust the clutch dial position according to the screw diameter 2 Tightening torque indication See Fig 7 The tightening torque differs depending on the type of screw and the material being tightened The unit indicates the tightening torque with the numbers 1 5 9 21 on theclutch dial and a black dots The tightening toque at position 1 is the weakest and the torque is strongest at the highest number 3 Adjusting the tightening torque See Fig 7 Rotate the clutch dial and line up the numbers 1 5 9 21 on theclutch dial or thedots with the triangle markon the outer body Adjust theclutch dial in the weak or the strong torque direction according to the torque you need CAUTION O The motor rotation may be locked to cease while the unit is used as drill While operating the driver drill take care not to lock the motor O When setting the shift knob to HIGH high speed and the position of the clutch dial is 17 or 21 it may happen that the clutch does not engaged and that the motor is locked In such a case please set the shift knob to LOW low speed O If the motor is locked immediately turn the power off If the motor is locked for a while the motor or battery may be burnt O Too long hammering may cause the screw broken due to excessive tightening 8 Switch operation 1 Lock switch The tool is equipped with a lock switch To activate the main switch lock move the lock switch to the LOCK position Move the lock switch to the opposite position to operate the tool Fig 9 CAUTION Always set the lock switch to the LOCK position when carrying or storing the tool eliminate unintentional starting 2 Main switch The main switch functions as a motor switch and rotational direction selector switch When the main switch ispushed to R indicated on themain switch the bit rotates clockwise When the main switch is pushed to L indicated on the main switch the bit rotates counterclockwise When the main switch is released the tool stops Fig 10 9 Using the light The light lights when the light switch is pushed When the light switch is pushed again the light is turned off Fig 11 CAUTION Do not lookdirectly into the light Such actions could result in eye injury 10 Using in the Straight or Pistol Configuration Use thetool in the straight configuration when using in confined spaces Use it in the pistol configuration when using in other locations Select the configuration that best matches the tool application When changing the configuration thetool will make aclicking sound when it snaps into position Bend or extend thetool until the clicking sound is heard CAUTION When using the tool in the pistol configuration do not hold onto the bending portion of the tool when returning to the straight configuration Your finger or other part of the hand may be pinched by the bend ing portion resulting in possible injury Fig 12 11 The scope and suggestions for uses The usable scope for various types of work based on the mechanical structure of this unit is shown in Table 2 Table 2 Work Suggestions Steel Drilling Use for drilling purpose Aluminum Driving Machine screw Use the bit or socket matching the screw diameter Wood screw Use after drilling a pilot hole 12 How to select tightening torque and rotational speed Table 3 Rotating speed selection Position of the shift knob Machine screw Cap Position Drilling Metal HIGH High speed 1 21 For 5 mm or smaller diameter screws For 3 5 mm or smaller nominal diameter screws For drilling with a metal working drill bit Driving Wood screw LOW Low speed 1 Use For 3 mm or smaller diameter screws 8

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