EN
WWW.BORMANNTOOLS.COM
8
Troubleshooting
Storage/Transport
Store the equipment and accessories out of children's reach in a dark and dry place at above freezing temperature. The ideal storage temperature is between
5 and 30 0C. Store the electric tool in its original packaging.
Attention! Unplug the machine!
The appliance must unconditionally be secured against falling or turning down during transport.
WARNING: Turn switch off and always remove plug from the power source before troubleshooting.
Trouble
Problem
Remedy
Quill returns too slowly or too quickly.
Spring has improper tension.
Adjust spring tension. See ''Quill return spring''.
Chuck will not stay attached to spindle. It will fall
off when trying to install.
Dirt, grease or oil on the tapered inside surface of
the chuck or on the spindle's tapered surface.
Using household detergent, clean the tapered
surfaces at chuck and spindle to remove all dirt,
grease and oil. ''See installing the chuck''.
Noisy operation
1. Incorrect belt tension.
1. Adjust belt tension. See ''Choosing speed and
belt tensioning''.
2. Dry spindle.
2. Lubricate spindle. See ''Lubrication''.
3. Loose spindle pulley.
3. Check tightness of retaining nut on pullet, and
tighten if necessary.
4. Loose motor pulley.
4. Tighten set screw in motor pulley.
Wood splinters on underside.
No ''backup material'' behind workpiece.
Use ''backup material''. See '' Positioning table
and workpiece''.
Workpiece torn loose from hand.
Not supported or clamped properly.
Support workpiece or clamp it. See '' Positioning
table and workpiece''.
Drill bit burns.
1. Incorrect speed.
1. Change speed. See ''Choosing speed and belt
tensioning''.
2. Chips not coming out of hole.
2. Retract drill bit frequently to remove chips.
3. Dull drill bit.
3. Resharpen drill or replace.
4. Feeding too slowly.
4. Feed fast enough to allow drill bit to cut.
Drill leads off..hole not round.
1. Hard grain in wood or lengths of cutting lips
and/or angle not equal.
1. Resharpen drill bit correctly.
2. Bent drill bit.
2. Replace drill bit.
Drill bit binds in workpiece.
1. Workpiece pinching drill bit or excessive feed
pressure.
1. Support workpiece or clamp it. See '' Position-
ing table and workpiece''.
2. Improper belt tension.
2. Adjust belt tension. See ''Choosing speed and
belt tensioning''.
Excessive drill bit run-out or wobble.
1. Bent drill bit.
1. Use a straight drill bit.
2. Worn spindle bearings.
2. Replace bearings.
3. Drill bit not properly installed in chuck.
3. Install drill properly. See ''installing drill bits''.
4. Chuck not properly installed.
4. Install chuck properly. See ''installing the
chuck''.
Maintenance
There are no parts inside the equipment which require additional maintenance.
Please note that the following parts of this product are subject to normal wear and tear and that the fallowing parts are therefore also required for use as
consumables.
Wear parts*: Carbon brushes. v-belt, drill bits.
* Not necessarily included in the scope of delivery!