Grizzly G7297 instruction manual Troubleshooting Guide

TROUBLESHOOTING GUIDE

SYMPTOM				POSSIBLE CAUSE		CORRECTIVE ACTION
Motor	will	not	start;	1.	No voltage.	1.	Check for tripped fuse or breaker.
fuses or circuit break-				2.	Incorrect fuses or circuit	2.	Install correct fuses or circuit breakers.
ers blow.					breakers in power line.
				3.	Bad wiring in motor, or	3.	Inspect all connections on motor for
					faulty start capacitor.		loose or shorted terminals, replace
							start capacitor.
				4.	Short circuit in line cord or	4.	Inspect cord or plug for damaged insu-
					plug.		lation and shorted wires.
Motor fails to develop				1.	Circuit is overloaded.	1.	Reduce load on circuit, or use dedicat-
full power (power out-							ed circuit.
put of motor decreas-				2.	Start capacitor is faulty	2.	Replace start capacitor.
es	rapidly		with	3.	Undersized wires or cir-	3.	Increase wire sizes or reduce length of
decrease in voltage at					cuits too long.		wire.
motor terminals).
Motor		overheats,		1.	Motor overloaded.	1.	Reduce load on motor, feed workpiece
slows,	or		stalls				slower
(resulting		in	blown	2.	Air circulation through the	2.	Clean out motor to provide normal air
fuses or tripped cir-					motor restricted.		circulation.
cuit).				3.	Short circuit in motor or	3.	Inspect connections on motor for
					loose connections.		loose or shorted terminals.
				4.	Low voltage.	4	Correct the low voltage conditions.
				5.	Incorrect fuses or circuit	5.	Install correct fuses or circuit breakers.
					breakers in power line.
Sanded surface not				1.	Table not perpendicular to	1.	Adjust table tilt.
square.					disc.
				2.	Miter gauge not square to	2.	Adjust miter gauge.
					disc.

Disconnect power to the machine when perform- ing any maintenance or repairs. Failure to do this may result in serious personal injury.

-18- G7297 Disc Sander