Troubleshooting

Trouble

 

Probable Cause

 

Remedy

 

 

 

 

 

 

1.

Drill press unplugged from

1. Check all plug connections.

 

 

wall, or motor.

 

 

2. Replace fuse, or reset circuit

 

2.

Fuse blown, or circuit

Drill press will not start.

 

breaker.

 

breaker tripped.

 

 

 

3.

Replace cord.

 

3.

Cord damaged.

 

4.

Replace starting capacitor.

 

4.

Starting capacitor bad.

 

 

 

 

1.

Extension cord too light or

1. Replace with adequate size

Drill press does not come up

 

and length cord.

 

too long.

 

to speed.

 

2.

Contact a qualified

2.

Low current.

 

 

electrician.

 

 

 

 

Drill Press vibrates

1.

Stand on uneven surface.

1. Adjust stand so that it rests

 

evenly on the floor.

excessively.

2.

Bad belt(s).

 

2.

Replace belts.

 

 

 

 

 

 

1. Adjust belt tension. See

 

 

 

 

“Changing Spindle Speeds”,

 

1.

Incorrect belt tension.

 

page 12.

 

2.

Lubricate spindle. See

 

2.

Dry spindle.

Noisy Operation.

 

“Lubrication” page 15.

3.

Loose spindle pulley.

 

 

3. Check tightness of retaining

 

4.

Loose motor pulley.

 

 

nut on pulley, and tighten if

 

 

 

 

 

 

 

 

necessary.

 

 

 

4. Tighten set screws in pulleys.

 

 

 

1.

Change to appropriate

 

1.

Incorrect Speed.

 

speed, see speed and pulley

 

 

chart, page 13.

 

2.

Chips not clearing from hole

 

 

2. Retract drill bit frequently to

Workpiece Burns.

 

or bit.

 

 

remove chips.

 

3.

Dull drill bit.

 

 

3. Resharpen, or replace drill

 

4.

Feeding too slow.

 

 

bit.

 

 

 

 

 

 

 

4.

Increase feed rate.

 

1.

Bit sharpened incorrectly.

1.

Resharpen bit correctly.

Drill bit wanders.

2.

Bent drill bit.

2.

Replace drill bit.

3.

Bit, or chuck not installed

3.

Reinstall the chuck, or bit

 

 

 

properly.

 

properly.

Wood splinters on the

 

 

1. Place a scrap board

1.

No backing board used.

 

underneath the workpiece to

underside.

 

 

 

 

prevent splintering.

 

 

 

 

 

1.

Workpiece pinching the bit.

1. Support or clamp workpiece.

 

2.

Decrease feed rate.

 

2.

Excessive feed rate.

Drill bit binds in workpiece.

3.

Tighten chuck jaws.

3.

Chuck jaws not tight.

 

4. Increase belt tension, see

 

4.

Improper belt tension.

 

 

page 12.

 

 

 

 

 

1.

Bent drill bit.

1.

Replace drill bit.

Excessive drill bit runout, or

2.

Worn spindle bearings.

2.

Replace spindle bearings.

wobble.

3.

Bit, or chuck not properly

3.

Reinstall the bit, or chuck

 

 

installed.

 

properly.

Quill returns too slow, or too

1.

Spring has improper tension.

1.

Adjust “Return Spring

fast.

 

Tension,” page 14.

 

 

 

 

 

 

 

Chuck, or arbor do not stay in

1.

Dirt, grease, etc on arbor,

1. Clean all mating surfaces

 

thoroughly with a cleaner

place.

 

chuck, or spindle.

 

 

 

degreaser.

 

 

 

 

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Jet Tools JDP-17FSE owner manual Troubleshooting