Jet J-3130 Operating Instructions And Parts Manual

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20Symptom Possible Cause CorrectionBlade twisting. (cont.) Incorrect guide bearing adjustment Adjust guide bearings according to instructionsin this manual.Loose guide bearing bracket Tighten bracket on saw arm.Loose bearing seat attachment screw Tighten bearing seat attachment screw –adjust bearing clearance.Unusual wear onside/back of blade.Blade guides worn. Replace.Blade guide bearings not adjustedproperly.Check and adjust for proper clearance.Blade guide bearing bracket loose. Tighten bracket to saw arm.Blade running on wheel flange. Adjust blade tracking using the paper cuttingmethod.Breaking teeth. Teeth too coarse for work. Use blade with finer pitch.Too heavy feed. Decrease feed rate – observe chip formation toverify efficient cutting.Too slow speed. Increase blade speed. Check technicalliterature or blade or work piece supplier forblade speed recommendations.Vibrating work piece. Be sure vise is tight.Support slender cross section or long workpieces with appropriate in feed and out feedsupports.If stacking pieces in the vise, be sure all workpieces are securely captured by the vise.Tooth gullets loading Use coarser blade or one with a toothgeometry more appropriate to the work piecebeing cut.Blade in contact with work piece beforemotor is started.Always allow motor to come fully up to speedbefore beginning cut.Motor running too hot. Blade tension too high. Decrease blade tension to just above slippoint.Worn transmission and worm gear. Replace gears in transmission gearbox.Gears need lubrication. Check gearbox and add oil as required.