Nitto QA-4000, Инструкция по эксплуатации, Страница: 15 / 24

Solutions
Reset the limit switch by
moving the electric drill a little
upward or downward.
Replace the faulty Magnet
Part.
Turn the automatic feed ON in
the beginning of a drilling
operation.
Avoid wiring which may cause
votage variation (Putting many
loads on one outlet prohibited)
Increase the supply of the
cutting fluid in volume.
Remove them.
Sharpen the cutter or replace
it with new one.
Fit a 10mm or thicker iron
plate in the back of the work.
Clean the bottom free of
foreign matters.
Sharpen it or replace it with
new one.
Replace it.
Operate the process all over
again from the beginning.
Refill lubrication oil.
7 TROUBLESHOOTING
WARNING
●
Do not attempt to repair the tool yourself. This will cause damage to the tool and danger to yourself when
you use it again.
●
If any of the following, or other symptoms occur, or if there are other matters concerning usage that you do
not understand, please consult the sales agent from whom you purchased the tool or an authorized dealer.
This tool is controlled by electronic functions and will stop automatically if the electronic control system malfunctions
due to power supply noise. During drilling, the following symptoms are not considered to be problematic. For safety
reasons, check the tool only after ensuring the Switch Knob is set to Magnet On, the Rod Handles are pushed outside,
and the automatic feeding is Off and the Drill Motor retracted:
14
Problems
Electric drill does not start
rotation when the switch knob
is turned ON.
Electric drill moves up and
stops when the automatic feed
is turned ON.
Electric drill stops and moves
up in the middle of drilling a
hole.
The entire unit stops its
operation during drilling a hole
and the orange indicator lamp
is lighted.
The Side slip detection
function is actuated as the
magnet slips sideways to stop
the unit entire operation and
to light the green and yellow
indicator lamps.
Electric drill does not move up
but stops at the bottom stroke
end after a hole drilling
process is completed.
Inquire the sales agent from you purchased or an authorited dealer if you have above or other troubles, or any questions concerning
the operation of the unit.
Red Orange
ON
STOP
LOAD
LOAD DETECTION
Red Yellow
Green
ON
STOP
LOAD
LOAD DETECTION
Red Yellow
Green
ON
STOP
LOAD
LOAD DETECTION
Red Yellow
Green
ON
STOP
LOAD
LOAD DETECTION
Red Yellow
Green
ON STOP
LOAD
LOAD DETECTION
Red Yellow
Green
ON STOP
LOAD
LOAD DETECTION
Causes
The limit switch is tripped
adjacent to the upper or lower
stroke limit.
Electro-Magnet does not have
the holdingpower (somehow,
the coil is cut off)
The drill is operated in the
manual feed mode.
Sudden drop in voltage
Sufficient cutting fluid is not
supplied.
Cutting dusts or chips stuff the
cutter tip.
Cutter tip is worn out.
The work is too thin.
Cutting chips or the like are stuck
in the bottom of the magnet.
The cutter tip is worn out.
The magnet is defective.
The hole is drilled with the
drilling load scarcely needed.
(The work is too thin.)
Cutting started immediately
after electrical drill started
Lubrication oil runs out in the
spindle arbor and needle
bearings.
Lamp indications
Red Yellow
ON STOP
LOAD
LOAD DETECTION
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