Nitto Kohki LO-3550, Инструкция по эксплуатации

Страница: 11 / 26

10
4 FUNCTIONS OF ELECTRONIC
CONTROL
4-1. Overload Detecting Function
When overload is detected during drilling operation,
the following automatic functions are activated.
Please note, however, that there may be cases
where the overload detector does not work properly
if power is drawn from an engine generator or power
source with too high or too low voltage
fl uctuation.
(1) Load Indication
Two LED lamps indicate the load conditions on the
drill motor. The blue LED lamp is lit under normal
load on the drill and the red LED lamp under
overload.
(2) Automatic Stop
Overload on the drill motor illuminates the red LED
lamp and increasing load on the drill motor will
reduce the motor output and the red LED lamp
will blink. If the drill motor is further loaded for two
seconds, the drill motor will stop automatically for its
own protection and the blue LED lamp will blink.
(3) Automatic Re-start
If the load is released before the electric drill comes
to a complete stop due to the continued overload,
the drill motor will resume its normal operation.
When the drill motor comes to a complete stop, you
can re-start the drilling by pushing the start switch
again.
4-2. Re-start Prevention
The re-start prevention function comes into play
when power failure is restored that has occurred
during operation.
Thanks to this feature, when the electric plug that
has been disconnected during operation is re-
plugged into the receptacle or when power failure
that has occurred during operation is restored, the
drill motor will not re-start automatically preventing
possible accident, although magnetic power IS
restored.
To resume operation, turn on the start switch which
is located on top of the machine to start the drill
motor.
4-3. Magnet Interlock
When the Magnet fails, the drill motor will not start
revolving and the red LED lamp will blink. To repair
defective magnet, please contact the sales agent
from whom you purchased your unit or an authorized
dealer near you.
5 MACHINE SETUP
WARNING
●
When setting up machine, turn off the Magnet
Switch and disconnect the power supply plug
from power source.
5-1. Accessory Installation
Insert the accessory feed handle into the handle
shaft on the side of the body. (Fig. 8)
※
The handle bar can be positioned on the right or
left side for comfortable drilling and mounting in
con
fi ned spaces.
See Fig. 9 for the mounting position of the sub
handle.
When mounting the sub handle, align the pin on the
body to the cutout on the sub handle then assemble
as shown in Fig. 9.
Handle Shaft
Feed Handle
Feed Handle
Fig. 8
Hex. Socket Head Cap Bolt
Cutout on Sub Handle
Hex. Socket Head
Cap Bolt
Mounting Position of Sub Handle
Fig. 9