Scheppach stb t13 Traduction Du Manuel D'origine page 19

WARNING: turn switch off and always remove plug from the power source before trouble shooting.
trouble
Quill returns too slowy or too quickly
Chuck wiII not stay attached to spindle. It wiII
falls off when trying to install.
Noisy operation
Wood splinters on underside.
Workpiece tom loose from hand.
Drill bit bums.
Drill leads off...hole not round.
Drill bit binds in workpiece.
Excessive drill bit run- out or wobble.
stb Bohrmaschinen 2012.indd 19
trouble shooting advice
problem
Spring has improper tension
Dirt, grease or oil on the tapered inside surface
of the chuck or on the spindle's tapered surface.
1. Incorrect belt tension
2. Dry spindle.
3. Loose spindle pulley
4. loose motor pulley.
No "backup material" behind workpiece.
Not supported or clamped proper1y.
1. Incorrect speed.
2. Chips not coming out of hole.
3. Dull drill bit
4. Feeding too slowy
1. Hard grain in wood or lengths of cutting lips
and/or angle not equal
2. Bent drill bit.
1. Workpiece pinching drill bit or excessive feed
pressure.
2. Improper belt tension.
1. Bent drill bit
2. Wom spindle bearings
3. Drill bit not properly installed in chuck.
4. Chuck not properly installed.
remedy
Adjust spring tension. See "Quill return spring".
Using household detergent, clean the tapered
suffaces af chuck and spindle ta remave all dirt,
grease and oil. See "Installing the chuck".
1. Adjust belt tension. See "Choosing speed and
belt tensioning".
2. Lublicate spindle. See "Lublication"
3. Check tightness of retaining nut on
pulley, and tighten if necessary
4. Tighten set screw in motor pulley
Use "backup material". See "Positioning table
and workpiece".
Support workpiece or clamp it. See "Positioning
table and workpiece".
1. Change speed. See "Choosing speed and belt
tensioning".
2. Retract drill bit frequently to remave chips.
3. Resharpen drill bit.
4. Feed fast enaugh ta allow drill bit to cut.
1. Resharpen drill bit correctly.
2. Replace drill bit.
1. Suppar1 workpiece ar clamp it. See
"Positioning table and workpiece".
2. Adjust belt tension. See "Choosing speed and
belt tensioning".
1. Use a straight drill bit.
2. Replace bearings.
3. Install drill properly. See "Installing drill bits".
4. Install chuck properly. See "Installing the
chuck".
english 19
17.02.12 09:34