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Makita HB350 Manual page 3

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FITTING THE CUTTER
Fig. 1
Fig. 3
Fig. 4
FITTING THE OIL BOTTLE
The cutting oil bottle is held in a
sprung bracket attached to the top of
the drill body. Fit the bracket by
removing one of the cap screws from
the top plate and replace the bolt
through the fixing lug on the bottle
bracket, tightening the bolt enough to
allow some radial movement of the
bracket. The coolant tube is a push fit
into the self-seal gland at the base of
the tap and a similar fitting on the
lower arbor bracket.
N.B. Safety strap and guards have been omitted from the photo's for clarity.
INSERTION OF PILOT PIN
• The pilot pin is used to both center the
cutter and to eject the slug on completion of
the cut. It has a flat side to allow coolant to
run down to reach the center of the cut
where the heat is greatest. Slide the pin
through the hole in the center of the cutter
shank.
FITTING THE CUTTER
Fig 1.
To insert the cutter in the arbor, first loosen the grub
screws, using an M5 hexagonal wrench. Ensure the
Fig. 2
grub screws are sufficiently loose enough to allow the
shank of the cutter to enter freely.
Fig 2.
Ensure the drive flats on the cutter shank are fully
aligned with the two grub screws in the machine arbor.
Fig 3.
Fig. 3
Ensuring the shank of the cutter is fully inserted
inside the arbor, tighten the grub screws fully to give
the cutter a secure fitting inside the arbor.
Fig 4.
The cutter is now ready for use.
APPLYING COOLANT
• Cutting oil ensures longer cutter life and enables the slug to be
ejected cleanly. A 500 ml bottle is included with the machine.
• Oil will be automatically delivered to the cutter when the cut
commences.
•When cutting on vertical surfaces or upside down, cutting
paste, gel or foam is recommended. It is best applied inside the
cutter before drilling.
• Plug the machine into the power socket and the red LED on
the electronic control panel will flash.

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