Issue 4
Original version
March 2010
8
Excessive cutter breakage Steel swarf or dirt under cutter
Incorrectly re-sharpened or worn cutter
Cutter skipping
Slideway needs adjustment
Cutter not attached tightly to arbor
Insufficient use of cutting oil or
unsuitable type of oil
Remove cutter, clean part thoroughly and
replace
Always have a new cutter on hand to
refer to for correct tooth geometry, along
with instruction sheet
See cause and remedy above
Adjust gibs
Retighten
Inject oil of light viscosity into he slot in
the arbor and confirm oil is being
metered into cutter when pilot is
depressed. Check pilot groove and arbor
internally for dirt or apply oil externally.
Excessive cutter wear
See cause and remedy above
Incorrectly re-sharpened cutter
Insufficient or spasmodic cutting
pressure
Refer to instructions and a new cutter for
proper tooth geometry
Use sufficient steady pressure to slow the
drill down. This will result in optimum
cutting speed and chip load
Motor will not start
Insufficient air pressure/volume
Check air supply, spindle free to rotate
