Prior To Operation - Hitachi DB 3DL2 Handling Instructions Manual
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Also See for DB 3DL2:
- Handling instructions manual (82 pages) ,
- Instruction manual (56 pages) ,
- Technical data and service manual (26 pages)
Table of Contents
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Available languages
Available languages
English
Regarding electric discharge in case of new
batteries, etc.
As the internal chemical substances of new batteries
and batteries that have not been used for an extended
period is not activated, the electric discharge might be
low when using them for the fi rst and second times.
This is a temporary phenomenon, and normal time
required for recharging will be restored by recharging
the batteries 2 – 3 times.
How to make the batteries perform longer
(1) Recharge the batteries before they become completely
exhausted.
When you feel that the power of the tool becomes
weaker, stop using the tool and recharge its battery.
If you continue to use the tool and exhaust the electric
current, the battery may be damaged and its life will
become shorter.
(2) Avoid recharging at high temperatures.
A rechargeable battery will be hot immediately after
use. If such a battery is recharged immediately after
use, its internal chemical substance will deteriorate,
and the battery life will be shortened. Leave the battery
for a while and recharge it after it has cooled.
CAUTION
○ When the battery charger has been continuously used,
the battery charger will be heated, thus constituting
the cause of failures. Once the charging has been
completed, give 15 minutes rest until the next
charging.
○ If the battery charger does not work while the battery
is mounted correctly, it is probable that the battery or
charger is malfunctioning. Take it to your authorized
Service Center.
PRIOR TO OPERATION
1. Setting up and checking the work environment
Check if the work environment is suitable by following
the precautions.
HOW TO USE
How to make the batteries perform longer
○ Recharge the batteries before they become completely
exhausted.
When you feel that the power of the tool becomes
weaker, stop using the tool and recharge its battery.
If you continue to use the tool and exhaust the electric
current, the battery may be damaged and its life will
become shorter.
1. Installing the bit
Always follow the following procedure to install driver
bit. (Fig. 4)
(1) Pull the guide sleeve forward.
(2) Insert the bit into the hexagonal hole in the socket.
(3) Release the guide sleeve and it returns to its original
position.
CAUTION
If the guide sleeve does not return to its original
position, then the bit is not installed properly.
2. Removing the bit
Please do the opposite point on the method of
installing bit.
3. Automatic spindle-lock mechanism
When the main switch is off , the bit is locked in place,
and the tool can be used as a manual screwdriver.
4. Confi rm that the battery is mounted correctly
5. Change rotation speed
Operate the shift knob to change the rotational speed.
Move the shift knob in the direction of the arrow (see
Figs. 5 and 6).
When the shift knob is set to “LOW”, the drill rotates at
a low speed. When set to “HIGH”, the drill rotates at a
high speed.
CAUTION
○ When changing the rotational speed with the shift
knob, confi rm that the switch is off .
Changing the speed while the motor is rotating will
damage the gears.
○ When a large force is required for operation, set the
shift knob to “LOW”. If “HIGH” is set and the unit is
used, it may cause the motor to burn out or malfunction
prematurely.
6. Confi rm the clutch dial position (See Fig. 7)
The tightening torque of this unit can be adjusted
according to the clutch dial position, at which the clutch
dial is set.
(1) When using this unit as a screwdriver, line up the one
of the numbers “1, 5, 9 ... 21” on the clutch dial, or the
black dots, with the triangle mark on the outer body.
(2) When using this unit as a drill, align the clutch dial drill
mark “
” with the triangle mark on the outer body.
CAUTION
○ The clutch dial cannot be set between the numerals “1,
5, 9 ... 21” or the black dots.
○ Do not use with the clutch dial numeral between “22”
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 diff ers depending on the type of
screw and the material being tightened.
The unit indicates the tightening torque with the
numbers “1, 5, 9 ... 21” and black dots on the clutch
dial. 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” or the dots on the clutch dial, 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
○ 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.
○ When setting the shift knob to “HIGH” (high speed)
and the position of the clutch dial is “17” or “22”, 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).
○ 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.
○ 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)
Page 10
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