How To Use - Hitachi Koki WM 14DBL Instrucciones De Manejo

English
Drill bit
• A drill with hexagonal shank can be attached directly
to the tool.
• To attach a drill without hexagonal shank, you need
to have the drill chuck adapter set sold separately.
(1) Insert the drill bit into the chuck.
(2) Use the chuck key to secure the drill bit, tightening
the chuck by each of the three holes in turn. (Fig. 11)
• Use an iron drill to make a pilot hole for a wood
screw or a 10 mm or smaller hole.
(1) Insert the drill bit into the chuck.
(2) Use the chuck key to secure the drill bit, tightening
the chuck by each of the three holes in turn. (Fig. 11)

HOW TO USE

1. Mode selection function
WARNING
Use this tool with the mode selection dial set to the
correct position (it should be clicked and locked in
place).
Operation mode Marking Maximum torque
Electronic pulse
mode
Bolt mode
Self drilling screw
mode
Drill mode
Electronic clutch
mode
*1: Before fixing a thin plate with a self drilling screw, make sure that the thickness of the plate is suitable for the
screw diameter.
*2: With the electronic clutch mode 4 or 5, the tool may execute reverse rotation briefly when the load increases
in order to reduce a risk of screw-head damage.
2. Characteristics of Electronic Pulse Driver
Unlike a conventional impact driver, the electronic
pulse driver generates the striking force by rotating
the motor in regular and reverse directions repeatedly.
This mechanism has helped to provide quieter
operation.
The following characteristics are uncommon to a
conventional impact driver, however these are not
signs of malfunction.
The tool tends to be heated by continuous screw
tightening.
To protect the motor and electronic parts that control
the motor operation, this tool is equipped with a
temperature protection circuit.
Depending on the screw and material being screwed,
the striking operation may start early.
11
Example of mode selection
3
Wood screw
2
tightening
1
30 N·m Bolt tightening
2 Self drilling screw tightening (ø5 or ø6)
1 Self drilling screw tightening (ø3.5 or ø4)*1
11 N·m Drilling
5 5.3 N·m
*2
4
3 Machine screw (M6) or tapping screw tightening,
2 Gypsum board fixing
1 2.3 N·m
Ignoring this may cause an unexpected behavior of
the tool and result in breaking materials/screws or
injury.
CAUTION:
Do not apply strong impact to the mode selection
dial.
The operation mode can be changed by turning the
mode selection dial on the tool and aligning it with the
triangular mark.
The operation mode can be selected from five different
modes described in the below table.
NOTE:
The tightening torque obtained by each mode varies
according to the screw and material being screwed.
Adjust the mode selection dial after test-tightening a
few screws.
Use the bolt mode to tighten bolts.
Turning the mode selection dial with the tool switched
on does not change the mode. Switch off the tool
before changing the operation mode.
Application
Diagonal tightening of 75 mm screw
Tightening of 50 - 75 mm screw
Tightening screw shorter than 50 mm
Since the striking operation causes temperature
increase of the motor and electronic parts, the
temperature protection circuit may be activated early.
Refer to "1. Continuous operation" on page 13 for
recovering from the operation stop caused by the
temperature protection circuit.
Also, the electronic pulse driver controls the motor
rotation consistently to provide the optimum
operation for each mode.
Because of this, the following cases can occur during
operation.
The behavior at operation start differs by the mode.
The self drilling screw mode (1) gradually increases
the speed.
The electronic clutch mode (regular rotation) rotates
the motor at a very slow speed for a certain period
after the start and then increases the speed.
Notes
Use the bit and
socket which
are suitable for
the screw
diameter.
When using the
drill mode, be
sure not to stop
the motor
rotation.