TROUBLESHOOTING
16
FIG. 18
THE MACHINE MUST NOT BE PLUGGED IN AND THE POWER SWITCH
MUST BE IN THE 'OFF' POSITION UNTIL ADJUSTMENTS ARE COMPLETE.
PROBLEM
PROBABLE CAUSE
REMEDY
1. Correct the overload condition
2. Increase supply wire size or eliminate
using an extension cord
3. Adjust belt tension
4. Have voltage checked by an electrician
and corrected, if necessary
5. Test motor to fix or replace
1. Power line is overloaded
2. Undersize wires in supply system
3. Drive belt tension is too high
4. Low line voltage
5. Motor malfunctioning
Motor fails to develop full
power.
Motor will not start
1. Machine is not plugged in
2. Low line voltage
3. Loose connection
4. Defective switch
5. Defective motor
1. Plug in machine
2. Check fuses or reset circuit breaker, if
using extension cord, discontinue and
plug machine directly into wall outlet
3. Check plug and all connections
4. Replace switch
5. Replace
motor
1. Slower feed rate of the bit into material
2. Sharpen or replace drill bit
3. Check motor capacitor and line voltage
1. Overfeeding of drill bit into material
2. Dull drill bit
3. Motor malfunction, not reaching speed
Motor stalls
1. Reduce load, slow down feed rate
2. Clean motor to increase air flow
1. Motor is overloaded
2. Air flow restricted on the motor
Motor overheats
Noisy operation
1. Excessive machine vibration
2. Dry spindle
3. Loose pulleys
4. Noisy motor
1. Tighten any loose parts. Secure drill
press to the floor or plywood base
2. Lubricate spindle, quill, etc.
3. Make needed corrections
4. Check motor bearings and fan
Drill bit binds in the work
piece
1. Work piece is pinching the drill bit
2. Excessive feed rate
3. Chuck jaws are not holding bit tight
1. Support or clamp down the work piece
2. Slow down the feed rate
3. Tighten the chuck jaws on the bit
Drill bit or material smokes
or burns
1. Drilling speed is too fast
2. Chips are not clearing out of hole
3. Dull drill bit
4. Feeding bit is too slow
5. Bit is not lubricated
1. Reduce drilling speed
2. Retract drill bit frequently to clear chips
3. Change or sharpen drill bit
4. Increase feed speed
5. Lubricate bit. Make sure bit and flutes
are clean of rust, resin build-up, etc.
1. Spindle return spring has improper
tension
1. Adjust spindle return spring tension
Wood splinters on the
underside of work piece
1. No supporting ‘back up material’ under
the work piece
1. Use scrap board or plywood under the
work piece for support when the drill bit
bores through the work
Drill bit slips
1. Bit not installed securely in the chuck
1. Re-install the bit tightly in the chuck
Drill bit wanders or
wobbles
1. Bit not installed correctly in the chuck
2. Bit sharpened incorrectly
3. Bit is bent or shank is damaged
1. Re-install bit in chuck jaws correctly
2. Sharpen bit correctly or replace bit
3. Replace bit
Quill returns too slow or
too fast
