Nitto Kohki AO-5575, Instruction Manual

Page: 14 / 24

13
(4) Magnet ON
WARNING
●
Check to see that Magnetic power is at work.
Turn on the Magnet Switch. The switch lamp will
glow and magnetic power will come on.
(5) Controlling Cutting Oil Flow.
Open the P-Valve and turn the Rod Handle. Pilot
Pin will move up allowing Cutting Oil to flow.
(6) Mounting the Guard
Mounting the Guard as shown. (Fig.23)
Guard (TB05418)
Fig. 23
(7) Oil Flow Control
After installed cutter and Pilot Pin ， press the Pilot
Pin on to the workpiece, and oil flow starts when
P-Valve is opened. Such flow is recommended
that the cutter chips be kept constantly wet during
drilling and free from discoloration due to overheat
burn. Drilling without enough oil causes longer
cycle time and shorter cutter life.
For vertical operation, use optional Jet Oiler as
shown in 9.OPTIONAL PARTS. (Fig.24)
Jet Oiler (TQ05273)
Tube 4X7X1000
(TQ05275)
Oil ling
Fig. 24
(8) Drill Motor ON
WARNING
●
Don’t touch revolving parts.
Press the Drill Motor ON Switch to start the Drill
Motor
(9) Drilling
WARNING
●
Don't press the Rod Handle strongly or the
Magnet may lift, causing the main body to
swing.
CAUTION
●
Only perform drilling operation when the
Overload Detector Lamp is lit in green and
orange. If drilling operation continues while
the lamp is lit in red, the Drill Motor may burn
out.
For the first 2 to 3mm (5/64" - 7/64") of the
drilling, operate the drill gradually and only
apply a light force to the Rod Handle. (Fig.25)
Feed Slowly
2-3mm(5/64"~7/64")
Fig. 25
When putting a hole through workpiece with a
tapered bottom surface or bottom surface with a
radius, such as angle, channel, H-section steel, etc.,
use low feed rate at the start as well as toward the
end of drilling operation where the likelihood of tool
chipping is high.(Fig.26)
R
Fig. 26
(10) Finishing Drilling Operation
WARNING
●
Be careful about chips.
●
Do not touch the slug.
●
Do not use your hands to remove chips.
After completion of drilling operation, lift the Drill
Motor and turn OFF the Motor Switch (Fig. 27).
When the Drill Motor stops, immediately turn OFF
the Magnet Switch (Fig. 28). If the Magnet Switch
is kept ON for a long time, the continuous current
flowing through the Magnet could shorten the
service life of the Magnet.