HIKOKI DH18DPBW2 Instrucciones De Manejo página 12

English
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, the display lamp will blink while the switch
is pulled. In addition, the lamp will continue blinking for
approximately three seconds after the switch is released.
The motor will remain stopped while the lamp is blinking.
(Fig. 18)
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
Tool bit biting into material
Impact against nails, metal or other hard objects
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.
ABOUT THE PROTECTION
FUNCTION
This tool has a built-in protection circuit for preventing
damage to the unit in the event of an abnormality. Depending
on the following, the display lamp and the indicator lamp will
fl ash, and the unit will cease to operate. Verify the problem
indicated by the fl ashing and take the necessary steps to
correct the problem.
When pressing the changeover switch, do so when the
switch is not being pulled.
Changeover switch
Display lamp
Fig. 18
Indicator lamp
Fig. 19
Display
lamp Cause
fl ashing
Operation has
ceased because the
internal temperature
has exceeded the
temperature limit.
(High temperature
protection function)
Sudden
overburdening of the
tool bit has activated
the RFC, stopping
further operation of
the tool.
RFC (See page 12
"REACTIVE FORCE
CONTROL")
NOTE
Despite taking steps to correct a problem, the display
lamp may continue to blink. Should this be the case, the
unit may require repair. If so, please contact the outlet
from which this product was purchased for repairs.
LUBRICATION
Low viscosity grease is applied to this rotary hammer so
that it can be used for a long period without replacing the
grease. Please contact the nearest service center for grease
replacement when any grease is leaking from loosened
screw.
Further use of the rotary hammer despite the grease
shortage causes damage to reduce the service life.
CAUTION
A specifi c grease is used with this machine, therefore,
the normal performance of the machine may be badly
aff ected by use of diff erent grease. Please be sure to let
one of our service centers to undertake replacement of
the grease.
MAINTENANCE AND INSPECTION
CAUTION
Be sure to turned off the switch and remove the battery
before maintenance and inspection.
1. Inspecting the tool
Since use of as dull tool will degrade effi ciency and
cause possible motor malfunction, sharpen or replace
the tool as soon as abrasion is noted.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that
they are properly tightened. Should any of the screws be
loose, retighten them immediately. Failure to do so could
result in serious hazard.
3. Maintenance of the motor
The motor unit winding is the very "heart" of the power
tool. Exercise due care to ensure the winding does not
become damaged and/or wet with oil or water.
12
Table 3
Solution
Allow the unit to cool
for 15 to 30 minutes.
When the temperature
goes down and the
display lamp and the
indicator lamp blinking
stops, pull the switch
trigger to recover
operation.
Release the switch
trigger and leave it
until the display lamp
blinking stops. Pull the
switch trigger again to
recover operation.
Before continuing
operation, remove
the cause of the
overburden.