Woodstock W1717 instruction manual Troubleshooting Sanding

Troubleshooting Sanding

SYMPTOM		POSSIBLE CAUSE		CORRECTIVE ACTION
Deep sanding grooves	or	1.	Sanding belt grit is too coarse for the	1.	Use a finer grit sanding belt.
scars in workpiece.			desired finish.
		2.	Workpiece is being sanded across the	2.	Sand with the grain.
			grain.
		3.	Too much sanding force on workpiece.	3.	Reduce pressure on workpiece while sanding.
		4.	Workpiece held still against the belt.	4.	Keep workpiece moving while sanding on the belt.
Grains rub off the belt		1.	Sanding belt has been stored in an	1.	Store sanding belt away from extremely dry or hot tempera-
easily.			incorrect environment.		tures.
		2.	Sanding belt has been folded or
			smashed.	2.	Hang sanding belt or store unfolded and unstacked.
Sanding belt clogs quickly		1.	Using too much pressure against belt.	1.	Reduce pressure on workpiece while sanding.
or burns.		2.	Sanding softwood.	2.	Use different stock. Or, accept the characteristics of the stock
					and plan on cleaning/replacing belts frequently.
Burn marks on workpiece.		1.	Using too fine of sanding belt grit.	1.	Use a coarser grit sanding belt.
		2.	Using too much pressure against belt.	2.	Reduce pressure on workpiece while sanding.
		3.	Work held still for too long.	3.	Do not keep workpiece in one place for too long.
Glazed sanding belt.		1.	Sanding wet stock.	1.	Dry stock properly before sanding.
		2.	Sanding stock with high residue.	2.	Use different stock. Or, accept the characteristics of the stock
					and plan on cleaning/replacing belts frequently.
Workpiece frequently gets		1.	Not supporting the workpiece against	1.	Use back stop to support workpiece.
pulled out of your hand.			the stop.
		2.	Starting the workpiece on a leading	2.	Start workpiece on a trailing corner.
			corner.
Motor will not start.		1.	Low voltage.	1.	Check power line for proper voltage.
		2.	Open circuit in motor or loose connec-	2.	Inspect all lead connections on motor for loose or open con-
			tions.		nections.
Motor will not start; fuses		1.	Short circuit in line cord or plug.	1.	Inspect cord or plug for damaged insulation and shorted wires.
or circuit breakers blow.		2.	Short circuit in motor or loose connec-	2.	Inspect all connections on motor for loose or shorted terminals
			tions.		or worn insulation.
		3.	Incorrect fuses or circuit breakers in	3.	Install correct fuses or circuit breakers.
			power line.
Motor overheats.		1.	Motor overloaded.	1.	Reduce load on motor.
		2.	Incorrect usage of machine.	2.	Reduce the applied load on the machine.
		3.	Air circulation through the motor	3.	Clean out motor to provide normal air circulation.
			restricted.
Motor stalls (resulting	in	1.	Short circuit in motor or loose connec-	1.	Inspect connections on motor for loose or shorted terminals or
blown fuses or tripped			tions.		worn insulation.
circuit).		2.	Low voltage.	2	Correct the low voltage conditions.
		3.	Incorrect fuses or circuit breakers in	3.	Install correct fuses or circuit breakers.
			power line.
		4.	Motor overloaded.	4.	Reduce load on motor.
Machine slows when		1.	Applying too much pressure to work-	1.	Sand with less pressure—let the movement of the belt do the
operating.			piece.		work.
		2.	Undersized circuit or using ext cord.	2.	Make sure circuit wires are proper gauge & don’t use ext cords!
Machine vibrates		1.	Stand not stable on floor.	1.	Secure stand to floor, reposition to level surface, or shim
excessively.					stand.
		2.	Incorrect motor mounting.	2.	Check/adjust motor mounting.
		3.	Incorrect sanding belt tension.	3.	Make sure tension lever is in tensioning position. Follow belt
					tensioning instructions in this manual.
		4.	Weak or broken tension spring.	4.	Replace spring.
		5.	Idler roller is too loose.	5.	Adjust idler roller.
		6.	Broken/defective sanding belt.	6.	Replace sanding belt.

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