RIDGID DP1550 Manual Del Propietário página 34

Troubleshooting (continued)
Trouble
Drill bit burns 1. Incorrect speed
2. Chips not coming out of
3. Dull drill bit
4. Feeding too slow
5. Not lubricated
Drill bit leads off, 1. Hard grain in wood or
hole not round
2. Bent drill bit
Wood splinters on 1. No "backup material"
underside
Workpiece torn 1. Not supported or
loose from hand
Drill bit binds in 1. 'Workpiece pinching
workpiece
2. Improper belt tension
Excessive drill bit 1. Bend drill bit
runout or wobble. 2. 'Worn spindle bearings
3. Drill bit not properly
4. Chuck not properly
Quill returns too 1. Spring has improper
slow or too fast
Chuck will not stay 1. Dirt, grease or oil on
attached to spindle,
it falls off when try-
ing to install.
Chuck rotates but 1. Spindle pulley nut (part
does not deliver
sufficient torque to
properly drill.
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Probable Cause
hole
lengths of cutting lips
and/or angles not
equal.
under workpiece
clamped properly
drill bit or excessive
feed pressure.
installed in chuck
installed
tension
the tapered inside sur-
face of chuck or on the
spindles tapered sur-
face.
no. 821742) loose.
34
Remedy
1. Change speed. See "Getting to
Know Your Drill Press" section.
2. Retract drill bit frequency to clear
chips
3. Resharpen drill bit
4. Feed fast enough, allow drill bit to
cut
5. Lubricate drill bit. See "Basic Drill
Press Operation" section.
1. Resharpen drill bit correctly
2. Replace drill bit
1. Use "backup material". See "Basic
Drill Press Operation" section.
1. Support or clamp workpiece. See
"Basic Drill Press Operation" sec-
tion.
1. Support or clamp workpiece. See
"Basic Drill Press Operation" sec-
tion.
2. Adjust tension. See "Installing and
Tensioning Belt" section.
1. Use a straight drill bit.
2. Replace bearings
3. Install drill bit properly. See "Basic
Drill Press Operation" section.
4. Install chuck properly, refer to
"Assembly- Installing the Chuck".
1. Adjust spring tension. See "Adjust-
ments - Quill Return Spring" section.
1. Using a household detergent, clean
the tapered surface of the chuck
and spindle to remove all dirt,
grease and oil.
1. Turn nut counterclockwise to
tighten. (The nut has left-hand
threads.) See Repair Parts - Figure 1
for location of pulley nut.