Troubleshooting Jdp-20Vs Series Drill Press; Replacement Parts - Jet JDP-20VS-3 Operating Instructions And Parts Manual

12.0 Troubleshooting JDP-20VS series Drill Press

Trouble
Spindle does not turn.
Spindle noisy.
Drill stalls.
Poorly drilled holes.
Motor overheating.
Table binding, or cannot
be raised.
No speed readout.
*WARNING: Some corrections may require a qualified electrician.

13.0 Replacement Parts

Replacement parts are listed on the following pages. To order parts or reach our service department, call 1-800-
274-6848, Monday through Friday, 8:00 a.m. to 5:00 p.m. CST. Having the Model Number and Serial Number of
your machine available when you call will allow us to serve you quickly and accurately.
Non-proprietary parts, such as fasteners, can be found at local hardware stores, or may be ordered from JET.
Some parts are shown for reference only, and may not be available individually.
Probable Cause
Overload protector tripped.
Branch circuit breaker tripped or fuse
blown.
Open wire in switch circuit.
Defective switch.
Broken drive belt.
Damaged spindle bearings.
Worn spline.
Insufficient lubrication.
Worn drive belt.
Excessive feed rate for size of drill and
material being drilled. No cutting fluid or
improper cutting fluid.
Dull drill.
Lack of rigidity in hold-down method.
Speed too fast for material and drill size.
Feed too fast for material and drill size.
No or improper cutting fluid or coolant
being used.
Improperly ground drill bit.
Electrical circuit fault.
Oversize drill.
Excessive feed.
No cutting fluid, or wrong fluid.
Lack of lubrication.
Speed pickup out of adjustment or failed.
Remedy *
Allow machine to cool, then press reset
button on overload relay.
Reset branch circuit breaker/replace fuse.
Make sure incoming power matches
machine specs.
Repair open circuit.
Replace switch.
Replace drive belt.
Replace bearings.
Replace spline.
Maintain proper lubrication.
Check condition of belt. Replace if glazed
or slipping on pulleys.
Reduce feed pressure or use cutting fluid.
Use correct cutting fluid.
Sharpen or replace drill.
Check that all T-slot hold-downs are tight
and that table-lock and drill head bolts are
tight.
Check spindle speed recommendations.
Reduce speed if necessary.
Reduce feed rate.
Use cutting fluid, or change to proper fluid
or coolant for material being drilled.
Check for proper angles and reliefs.
Regrind to proper geometry.
Check current draw in circuit. Make sure
current draw is the same as rating on
motor plate.
Reduce drill size.
Reduce feed rate.
Use correct cutting fluid for the material
and drill.
Clean and lubricate rack, column, shafts,
or wherever needed.
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.
Table 5
15