TROUBLESHOOTING
TROUBLESHOOTING GUIDE
CAUTION!
To avoid injury from an accidental start, turn the switch “OFF” and always remove the plug from the power source before making any
adjustment. Consult your local your Service Center if for any reason the motor will not run.
PROBLEM
POSSIBLE CAUSES
REMEDY
Noisy operation
1. Incorrect belt tension.
2. Dry spindle.
3. Loose spindle pulley.
4. Loose motor pulley.
1. Adjust tension. See section “ASSEMBLY-
TENSIONING BELT”
2. Lubricate spindle. See Section “LUBRICATION”.
3. Check tightenness of retaining nut on pulley, and tighten
if necessary.
4. Tighten set screw in motor pulley.
Drill bit burn.
1. Incorrect speed.
2. Chip not coming out of hole.
3. Dull drill bit.
4. Feeding too slowly.
5. Not lubricated.
1. Change speed. See Section “ BASIC DRILL PRESS
OPERATION- SPINDLE SPEEDS”
2. Restract drill frequently to clear chips.
3. Resharpen drill bit.
4. Feed fast enough – allow drill to cut.
5. Lubricate drill. See Section “BASIC DRILL PRESS
OPERATION-FEEDING”
Run out of drill bit point-
drilled hole not round.
1. Hand grain in wood or lengths
of cutting flutes and/or angles
not equal.
2. Bent drill bit.
1. Resharpen drill bit correctly.
2. Replace drill bit.
Wood splinters on underside. 1. No backup material under
workpiece.
1. Use backup material. See Section “BASIC DRILL
PRESS OPERATION”.
Workpiece torn loose from
hand.
1. Not supported or clamped
properly.
1. Support workpiece or clamp it. See Section “BASIC
DRILL PRESS OPERATION”.
Drill bit binds in workpiece.
1. Workpiece pinching drill bit, or
excessive feed presure.
2. Improper belt tension.
1. Support workpiece or clamp it. See Section “BASIC
DRILL PRESS OPERATION”.
2. Adjust tension. See Section” ASSEMBLY –
TENSIONING BELT”.
Excessive drill bit runout or
wobble.
1. Bent drill bit.
2. Worn bearings.
3. Drill bit not properly installed
in chuck.
4. Chuck not properly installed.
1. Use a straight drill bit.
2. Replace bearings.
3. Install drill properly. See Section “BASIC DRILL
PRESS OPERATION” and “ASSEMBLY”.
4. Install chuck properly. See Section “ASSEMBLY –
INSTALLING THE CHUCK”.
Quill returns too slow or too
fast.
1. Spring has improper tension.
1. Adjust spring tension. See Section “ ASSEMBLY –
ADJUSTMENTS –QUILL RETURN SPRING”.
Chuck will not stay attached
to spindle. It falls off when
trying to install.
1. Dirt, grease, or oil on the
tapered inside surface of chuck
or on the spindle’s tapered
surface.
1. Using a non-petroleum cleaning solvent, , clean the
tapered surface of the spindle and chuck hole to
remove all dirt, grease and oil. See Section
“ASSEMBLY – INSTALLING THE CHUCK”.
The laser guide will not turn
on.
1. The batteries are dead.
2. The battery contacts need
adjustment.
1. Replace with new AAA batteries.
2. Tap outside the bottom and side of the laser housing
lightly with the but end of a screwdriver.
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Summary of Contents for DP12LW
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