Jet JMD-50LPFD, Руководство пользователя

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9
TROUBLE SHOOTING HINTS
TROUBLE PROBABLE CAUSE REMEDY
Excessive
Vibration 1.Motor out of balance
2.Bad motor 1.Balance or replace problem motor.
2.Replace motor
Motor stalls 1.Over feeding.
2.Dull drill.
3.Motor not building up to
running speed.
4.Bad motor 1.Replace feed rate.
2.Sharpen drill and keep sharp.
3.Replace or repair motor .Check fuses in all
three legs on three phase motors and replace
if necessary.
4.Replace motor
Noisy Operation 1.Excessive vibration
2.Improper quill adjustment.
3.Nosiy spline.
4.Noisy motor 1.Check remedy under excessive vibration.
2.Adjust quill.
3.Lubricate spline.
4.Check motor bearing or for loose motor fan.
Drill or Tool heats
up or burns work 1.Excessive speed.
2.Chips not clearing.
3.Dull tool.
4.Feedreate too slow.
5.Rotation of drill incorrect.
6.Failure to use cutting oil or
coolant (on steel) 1.Readuce speed.
2.Use pecking operation to clear chips.
3.Sharpen tool or replace.
4.Increase feed enough to clear chips.
5.Reverse motor rotation.
6.Use cutting oil or coolant on steel
Drill leads off 1.No drill spot.
2.Cutting lips on drill off center.
3.Quill loose in head.
4.Bearing play. 1.Center punch or center drill workpiece.
2.Regrind drill.
3.Tighten quill.
4.Check bearings and reseat or replace if
necessary.
Excessive drill
runout or wobble 1.Bent drill.
2.Bearing play.
3.Drill not seated properly in
chucks. 1.Replacedrill.Do not attempt to straighten.
2.Replace or reseat bearings.
3.Loosen , reseat and tighten chuck.
Work or fixture
comes loose or
spins 1.Failure to clamp workpiece or
work holding device to table. 1.Clampworkpiece or work holding device to
table surface.