-16-
12 TROUBLESHOOTING
PROBLEM
PROBABLE CAUSE
REMEDY
Noisy operation.
1.Incorrect belt tension.
2.Dry spindle.
3.Loose spindle pulley.
4.Loose motor pulley.
•Adjust the belt tension. See “To replace the
belt” in ADJUSTMENTS.
•Lubricate the spindle. See MAINTENANCE
section.
•Tighten the retaining nut on the pulley
insert.
•Tighten the set screw on the side of the
motor pulley.
The drill bit burns or smokes.
1.Drilling at the incorrect speed.
2.The wood chips are not coming out
of the hole.
3.Dull drill bit.
4.Feeding the workpiece too slowly.
5.Not lubricated.
•Change the speed. See “Variable speed” in
OPERATION.
•Retract the drill bit frequently to clear the
chips.
•Resharpen or replace the drill bit.
•Feed fast enough to cut the workpiece. See
“To drill a hole” in OPERATION.
•Lubricate the drill bit with cutting oil or motor
oil.
Excessive drill run-out
or wobble, drilled hole
is not round.
1.Bent drill bit.
2.Bit improperly installed in the chuck.
3.Worn spindle bearings.
4.Lengths of cutting flutes or angles
not appropriate for the hardness of the
wood grain.
5.Chuck not properly installed.
•Replace the drill bit.
•Reinstall the bit. See “To install drill bits” in
ADJUSTMENTS.
•Replace bearings. Take to a qualified
service technician.
•Resharpen the drill bit correctly or replace
with the appropriate type.
•Reinstall the chuck. See “To install the
chuck” in ASSEMBLY.
Drill bit binds in the workpiece.
1.The workpiece is pinching the bit.
2.Excessive feed pressure.
•Support or clamp the workpiece. See
“Position the table and workpiece” in
OPERATION.
•Feed more slowly. See “Feeding the drill bit”
in OPERATION.
Spindle returns too slowly or too
quickly.
1. Spring has improper tension.
Adjust the spring tension. See “Spindle
return spring” in ADJUSTMENTS.
Chuck falls off spindle.
1. Dirt, grease, or oil on the tapered
surface on the spindle or in the chuck.
Clean the tapered surface of both the chuck
and the spindle with a household detergent.
See “To install the chuck” in ASSEMBLY.
The workpiece splinters on the
underside.
1. No backup material under the
workpiece.
Always use a backup material. See “Position
the table and workpiece” in OPERATION.
The workpiece is slipping from
your hand.
1. Not supported or clamped properly.
Support workpiece using extension wing
or clamps. See “Position the table and
workpiece” in OPERATION.
Motor will not run.
1.Defective or broken switch.
2.Defective or damaged power cord.
3.Open circuit, loose connections, or
burned out motor.
4.Blown fuse or circuit breaker.
5.Low voltage.
•Take to a qualified service technician.
•Take to a qualified service technician.
•Take to a qualified service technician.
•Replace fuse or reset circuit breaker. Turn
off other machines on the same circuit.
•Check the power line for the proper voltage.
Use another circuit or have a qualified
electrician upgrade the service.