Operational Cautions; Reactive Force Control - Hitachi Koki DH 18DBL Manual De Instrucciones

English
Drill bit
Taper shank adapter
Taper shank adapter

OPERATIONAL CAUTIONS

Resting the unit after continuous work
(1) The power tool is equipped with a temperature
protection circuit to protect the motor.
Continuous work may cause the temperature of the
unit to rise, activating the temperature protection
circuit and automatically stopping operation.
If this happens, allow the power tool to cool before
resuming use.
(2) After use for continuous works, rest the unit for
15 minutes or so when replacing the battery. The
temperature of the motor, switch, etc., will rise if
the work is started again immediately after battery
replacement, eventually resulting in burnout.
18
Grip
Front cap
Fig. 23
Cotter
Rest
Fig. 24

REACTIVE FORCE CONTROL

This product is equipped with a Reactive Force Control
(RFC) feature that reduces jerking of the tool body.
If the tool bit is suddenly overburdened, any jerking of the
tool body is reduced by activation of the slip clutch or by
stopping of the motor by the sensor built into the tool body.
If the motor is stopped because of overburdening
detection by the controller, this is indicated by blinking
of the remaining battery lamp while the switch is pulled.
(Fig. 25)
Because the RFC feature may not activate or its
performance may be insuffi cient depending on the
working environment and conditions, be careful not to
suddenly overburden the tool bit while operating.
● Possible causes of sudden overburdening
1 Tool bit biting into material
2 Impact against nails, metal or other hard objects
3 Tasks involving prying or any excess application of
pressure, etc.
Also, other causes include any combination of the
aforementioned.
● When the reactive force control (RFC) is triggered
When the RFC is triggered and the motor stops, turn
off the tool's switch and remove the cause of the
overburdening before continuing operation.
Fig. 25