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14. Troubleshooting
Warning:
Trouble Problem Remedy
Quill returns too slowly or too
quickly
Spring has improper tension. Adjust spring tension. See “Adjusting
the spindle retaining spring”.
Chuck wiII not stay attached to
to install.
Dirt, grease or oil on the tapered surface
of the spindle or of the chuck.
Use household detergent to clean
the surfaces of spindle and chuck.
See “Installing the chuck”.
Noisy operation Incorrect belt tension Adjust belt tension. See “Choosing
speed and tensioning belt”.
Dry spindle. Test spindle.
Loose spindle pulley. Check tightness of retaining nut on
pulley and tighten, if necessary.
Loose motor pulley. Tighten set screw in motor pulley.
Wood splinters on underside of the
drill.
No suitable material beneath workpiece. Use suitable material. See “Position-
ing table and workpiece”.
Workpiece torn loose from hand. Workpiece not supported or clamped
properly.
Support workpiece or clamp it.
Drill bit burns. Incorrect speed. Change speed. See “Choosing
speed and tensioning belt”.
Chips not coming out of hole. Retract drill bit frequently to remove
chips.
Dull drill bit. Resharpen drill bit.
Feed too slow. Increase feed rate.
Hard grain in wood or lengths of cutting
lips and/or angle not equal.
Resharpen drill bit.
Bent drill bit. Replace drill bit.
Drill bit binds in workpiece. Work piece pinching drill bit or exces-
sive feed pressure.
Support workpiece or clamp it. See
“Positioning table and workpiece”.
Improper belt tension. Adjust belt tension. See “Choosing
speed and tensioning belt”.
Excessive drill bit run-out or wob-
ble.
Bent drill bit Use a straight drill bit.
Worn spindle bearings. Replace bearings.
Drill bit not clamped centrally in chuck. Check the centring of the drill. See
“Installing drill bits”.
Chuck not properly installed. Install chuck properly. See “Installing
the chuck”.
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