Troubleshooting - Wilton 2221VS Operating Instructions & Parts Manual

Troubleshooting

Problem
Spindle does not turn.
Spindle noisy.
Drill stalls.
Poorly drilled holes.
Motor overheating
Table can not be
raised.
No speed readout.
Possible Cause
1. Motor overload protector tripped.
2. Circuit breaker tripped.
3. Branch circuit breaker tripped or fuse blown.
4. Open wire in switch circuit.
5. Defective switch.
6. Broken drive belt.
1. Damaged spindle bearings.
2. Worn spline.
1. Worn drive belt.
2. Excessive feed rate for size of drill and
material being drilled. No cutting fluid or
improper cutting fluid.
1. Drill dull.
2. Lack of rigidity in hold-down method.
3. Speed too fast for material and drill size.
4. Feed too fast for material and drill size.
5. No or improper cutting fluid or coolant
being used.
6. Improperly ground drill bit.
1. Electrical circuit fault.
2. Oversize drill.
3. Excessive feed.
4. No cutting fluid, or wrong fluid.
1. Lack of lubrication.
1. Speed pickup out of adjustment or failed.
Remedy
1. Press motor overload reset button.
2. Reset circuit breaker.
3. Reset branch circuit breaker/replace
fuse.
4. Repair open circuit.
5. Replace switch.
6. Replace drive belt.
1. Replace bearings.
2. Replace spline.
1. Check condition of belt. Replace
if glazed or slipping on pulleys.
2. Reduce feed pressure or use cutting
fluid. Use correct cutting fluid.
1. Sharpen drill.
2. Check that all T-slot hold-downs are
tight and that table-lock and drill
head bolts are tight.
3. Check spindle speed recommen-
dations. Reduce speed if necessary.
4. Reduce feed rate.
5. Use cutting fluid, or change to
proper fluid or coolant for material
being drilled.
6. Check for proper angles and reliefs.
Regrind to proper geometry.
1. Check current draw in circuit.
Make sure current draw is the
same as rating on motor plate.
2. Reduce drill size.
3. Reduce feed rate.
4. Use correct cutting fluid for the
material and drill.
1. Lubricate.
1. Adjust gap between speed pickup
and post spindle pulley. If there is
no readout on the LED speed
indicator after adjusting the gap,
replace the speed pickup.
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