Sunitec MAB 825 Instrucciones De Manejo página 25

Drilling with core drills
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MAB 825/845
Proceed as follows when drilling with core drills:
For core drills with 19 mm Weldon shank, install the quick-
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change drill chuck system (A).
For core drills with 32 mm Weldon shank, install the industrial
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arbor (G).
Connect up the cooling lubricant system.
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Install the appropriate ejector pin in the core drill and insert
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the core drill into the tool mounting.
Position the machine at the working location, align it and
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switch on the magnetic clamps.
Select the appropriate speed and switch on the machine.
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NOTE
Observe the following instructions when drilling with core drills:
► Drilling with core drills requires no great effort. The drill-
ing process is not accelerated by higher pressure. The drill
wears faster and the machine can be overloaded.
► Use the cooling lubricant system installed on the machine
with high-performance cutting oil BDS 5000.
► The cooling lubricant system cannot be used when working
overhead. In this case use the high-performance grease
spray ZHS 400. Spray the drill on the inside and outside
before drilling. Repeat this procedure when drilling deeper
holes.
► Pay attention to a regular chip discharge. With larger drilling
depths, break the chip.
Operation
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