Troubleshooting - Axminster AHDP13B User Manual

TROUBLE
Noisy Operation
Drill bit burns
Drill bit leads off hole not round
Wood splinters on underside
Workpiece torn loose from hand
Drill bit binds in workpiece
Excessive drill bit runout or wobble
Quill returns too slow or too fast
Chuck will not stay attached to
spindle it falls off when trying to
install it
PROBABLE CAUSE
1. Incorrect belt tension
2. Dry spindle
3. Loose spindle pulley
4. Loose motor pulley
1. Incorrect speed
2. Chips not coming out of hole
3. Dull drill bit
4. Feeding too slow
5. Not lubricated
1. Hard grain in wood or lengths of
cutting lips and/or angles not equal
2. Bent drill bit
1. No "back-up material" under
workpiece
1. Not supported or clamped
properly
1. Workpiece pinching drill bit
or excessive feed pressure
2. Improper belt tension
1. Bent drill bit
2. Worn spindle bearings
3. Drill bit not properly
installed in chuck
4. Chuck not properly installed
1. Spring has improper tension
1. Dirty, grease or oil on the tapered
inside surface of chuck or on the
spindles tapered surface
23

Troubleshooting

REMEDY
1. Adjust the tension
2. Lubricate spindle
3. Checking tightness of
retaining nut on pulley,
and tighten if necessary
4. Tighten set screws in pulleys
1. Change speed
2. Retract drill bit frequently
to clear chips
3. Resharpen drill bit
4. Feed fast enough-allow drill
bit to cut.
5. Lubricate drill bit
1. Resharpen drill bit correctly
2. Replace drill bit
1. Use "back-up material"
1. Support workpiece or clamp it
1. Support workpiece or clamp it
2. Adjust tension
1. Use a straight drill bit
2. Replace bearings
3. Install drill bit properly
4. Install chuck properly
1. Adjust spring tension
1. Make sure all surfaces are free of dust
and grease