(8) Automatic feeding
CAUTION
●
Once it has started to feed, do not touch the Rod
Handles until the drilling is finished.
●
Do not use automatic feed if the finish side is slanted.
Pushing the Rod Handles towards the body activates
the automatic feeding. The feed in the first stage of the
cutting operation is automatically slow and manual feed is
not required. (Fig. 33)
Start cutting about 2 seconds after the electric drill
operation has been started.
If cutting has been started within 2 seconds, the
electric drill may be potentially stopped without
ascending even if drilling has been completed.
(Fig. 33)
When drilling a hole in an angle, channel or H-section,
etc., the cutter may be damaged when it comes to a slanted
or radiused surface on the finish side. Feed slowly when
starting and finishing. (Fig. 34)
(Fig. 34)
(9) Finishing the holes
CAUTION
Beware of ejected slags when finishing the holes.
Never touch the slags with bare hands since they
are hot and sharp.
When the drilling is finished, the Drill Motor will rise
automatically and stop. When it has stopped, pull the
Rod Handles to the outside to switch off automatic feed.
Then quickly set the Switch Knob to the Off position. If
you fail to do this, current will continue to flow in the
Magnet and shorten its life. (Fig. 35)
(Fig. 35)
(10) Slag removal
Do not start the next drilling with slag remaining on the
cutter.
When the drilling is completed, the spring loaded Pilot
Pin automatically ejects the slags. If, however, slags
do not eject and the inside of the cutter unit is clogged
with slags, the subsequent drilling will fail. In this case,
remove slags by hitting its flange with a thin punch.
(Fig. 36)
(Fig 36)
13
Rod Handle
Automatic feed
ON
OFF
MAGNET
MOTOR
Switch Knob
R
ON
OFF
ON
Pilot oin
Slag (Chips)
Cutter
Slag
Flange part
Thin punch
QA4000(230V)
10.6.19, 12:52 AM
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