Repair and maintenance work on the electrical system mayonly be carried out by a qualified electrician.If the drill press is not to be used for an extended period,reduce the belt tension.9. Trouble shootingMotor doesn’t start*No electricity-check mains and fuse.*Defective switch, motor or cord-consult an electrician.*Overload has reacted-Wait and restart.*Chuck guard or pulley cover open-Close chuck guard.Close pulley coverChuck will not stay on spindle*Oil or grease on contact surfaces-clean the tapered surfaces of chuck and spindle.Machine vibration*Incorrect belt tension-Adjust belt tension.*Dry spindle quill-lubricate spindle quill.*Spindle pulley loose-tighten retaining nut.*Motor pulley loose-Tighten set screw.*dull drill bit-re-sharpen drill bit.Drill bit burns*incorrect speed-reduce speed.*Chips clogged-retract drill bit frequently*dull drill bit-re-sharpen drill bit.*feeding too slow-feed faster.Drill leads off*cutting lips or angle not equal-re-sharpen drill bit correctly.*drilled hole off centre-drill a pilot hole first.*bent drill bit-use a proper drill bit.*drill bit not properly installed-install drill bit correctly.Laser cross not on drill centre*laser cross not adjusted correct-adjust lasers (see chapter 7.8)Laser doesn’t work*Defective line laser or power supply-consult an electricianA defective laser beamer may be replaced only, not repaired.10. Environmental protectionProtect the environment.Your appliance contains valuable materials which can berecovered or recycled. Please leave it at a specializedinstitution.11. Available accessoriesRefer to the JET price-list