Troubleshooting –Symptoms and Solutions
This table is a partial listing of potential problems and possible solutions to grinding problems with abrasive belts.

Belt Breakage
Too much work pressure	1.reduce pressure 2.use coarser grit 3.change belts
Not enough belt tension under work load	1.increase tension (do not over-tighten)
Too much belt tension for grit in use	1.adjust tension (should not be more than required under load to prevent slippage)
Foreign materials caught between belt's backer and drive or contact wheels	1.use dust collection system 2.clean work area
Belts creased or damaged during handling	1.handle carefully, see storage and handling information
Belt Not Tracking Properly
Tracking mechanism not properly adjusted	1.follow machine manual to properly adjust tracking
Damaged or fluttering edges of belt	1.increase belt tension, replace belt if necessary
Belt runs off due to slippage under load	1.increase tension to prevent slippage (do not overtighten)
Tapered contact roll or idler roll, idler roll and contact roll not parallel	1.redress roll to remove taper, align to parallel
Poor Grinding Results
Burnishing of work surface – indication of overused belt	1.use belt only as long as efficient 2.use proper feed speeds
Streaks and/or ridges on workpiece	1.clean or redress contact roll 1.clean platen, replace felt or graphite 1check dust collection for blockages
Too coarse finish	1.use finer grit 2.increase SFPM 3.apply more feed pressure
Too fine finish	1.use coarser grit 2.decrease SFPM 3.apply less feed pressure