Model G0784 (Mfd. since 03/15)
-31-
Symptom
Possible Cause
Solution
Tool loose/lack of
power in spindle.
1. Tool incorrectly installed in spindle taper.
2. Debris on tool or spindle taper mating
surfaces.
3. Taking too big of a cut.
4. V-belts are loose.
5. Wrong voltage.
1. Remove and re-install, as instructed on
Page 23.
2. Clean tool and spindle taper.
3. Lessen depth of cut and allow chips to clear.
4. Properly tension V-belts.
5. Correct voltage.
Workpiece or tool
vibrates or chatters
during operation.
1. Table locks not tight.
2. Workpiece not secure.
3. Spindle speed/feed rate is too fast.
4. Spindle or quill extended too far down.
5. Quill lock lever not tight.
1. Tighten table locks (
Page 25).
2. Properly clamp workpiece on table or in vise.
3. Set spindle speed correctly (
Page 21) or use
slower feed rate.
4. Fully retract spindle and lower headstock. This
increases rigidity to decrease vibration.
5. Tighten quill lock lever (
Page 22).
Headstock is hard to
raise.
1. Headstock lock nuts at fault.
2. Rack and pinion at fault or jammed with
grime/debris.
1. Loosen/replace lock nuts.
2. Fix/replace broken or loose parts; clean and
lubricate rack and pinion.
Bad surface finish.
1. Spindle speed too fast for workpiece
material.
2. Dull or incorrect cutting tool.
3. Wrong rotation direction of cutting tool.
4. Workpiece not secure.
5. Spindle extended too far down during
operation.
1. Set spindle speed correctly (
Page 21).
2. Sharpen cutting tool or select one that better suits
the operation.
3. Check for proper cutting tool rotation.
4. Properly clamp workpiece on table or in vise.
5. Fully retract spindle and lower headstock. This
increases rigidity.
Spindle overheats.
1. Drill operated at high speeds for extended
period.
1. Allow drill to cool.
Spindle does not
return to highest
position.
1. Poorly adjusted return spring.
2. Worn return spring.
1. Increase return spring tension (
Page 32).
2. Replace return spring.
Depth stop pro-
ducing inaccurate
results.
1. Depth stop not calibrated.
1. Calibrate depth stop (
Page 32).
Drill Press Operations
Summary of Contents for G0784
Page 48: ......
