![background image](http://html1.mh-extra.com/html/makita/bfh120f/bfh120f_instruction-manual_4179561006.webp)
6
LED indicator/beeper
The LED indicator/beeper on the tool shows the following functions.
LED indicator
Beeper *
Auto-stop
fastening
This function works when the tool has
reached the preset fastening torque and
normal tightening has been completed.
This helps overtightening to be avoided.
Delayed re-start
For approximately one second after
auto-stop fastening, the tool does not
start even if the switch trigger is pulled.
Warning against
insufficient
fastening
Insufficient fastening has been
performed when the switch trigger has
released before reaching the preset
fastening torque.
Lights up in red. A long beep
Retighten the
screw
Warning for
battery cartridge
capacity
This indicates the appropriate time to
replace the battery cartridge when the
battery power becomes low.
Flickers in red
slowly.
A series of long
beeps
Replace the
battery with fully
charged one
Checking the
remaining
battery capacity,
auto-stop
This function works when the battery
power is almost used up. At this time,
tool stops immediately.
Lights up in red. A long beep
Replace the
battery with fully
charged one
Operation error
of the removing
battery cartridge
This function operates to indicate that
an incorrect battery removal operation
is being attempted.
Flickers in green
slowly.
A series of long
beeps.
Release the
switch trigger,
raise the interlock
switch,and then
remove battery
cartridge.
Check the LED
indicator, front
lamp and
beeper
operation
This function works to check the proper
operation of the LED indicator, front
lamp and beeper when a battery
cartridge has been inserted into the tool
and the interlock switch is lowered.
Light up first in
green, next red
(And then the
front lamp
comes on.*)
A series of very
short beeps
-
Anti-reset of
controller
This function works when an abnormal
drop of the battery voltage occurs for
some reason, and the tool stops.
Flickers in red
and green
alternatively.
Replace the
battery with fully
charged one
Overheat
This function works if the temperature of
the controller or moror increases to a
high level and the tool stops.
Flickers in red
quickly.
A series of short
beeps
A series of short
beeps
Remove the
battery cartridge
immediately and
cool the tool
down.
Motor
malfunction
This indicates the abnormal condition of
the motor. The tool does not operate.
Flickers in red
and green
alternatively.
A series of short
beeps
Ask Makita
service centers.
Interlock switch
malfunction
This indicates abnormality of interlock
switch when the battery cartridge has
been inserted. The tool does not
function.
Flickers in red
and green
alternatively.
A series of short
beeps
Ask Makita
service centers.
* For models BFH040F/BFH090F/BFH120F only
Lights up in
green for
approximately
one second.
-
-
Function
Status
Status of the LED indicator/beeper
Action to be taken
006395